Full Research

StageFR
Project No.C-07
Project NameGlobal Warming and the Human-Nature Dimension in Siberia : Social Adaptation to the Changes of the Terrestrial Ecosystem, with an Emphasis on Water Environments
Abbreviated TitleRIHN Siberia Project
Project LeaderHIYAMA,Tetsuya
Research AxisCirculation
URLhttp://www.chikyu.ac.jp/siberia/
Key WordsGlobal Warming, Water Cycle, Carbon Cycle, Permafrost, Former Inhabitant, Reindeer, Social Adaptation

 

○Research Subject and Objectives

a) Research objectives and background
Global warming will likely transform Siberian environments. Early evidence indicates that water and carbon cycles are undergoing rapid change (Ohta et al., 2008; Iijima et al., 2010), with potentially grave impact on Siberian flora and fauna. Human inhabitants, who have adapted to great changes in social structure and environment in the past (Nakada, 2012; Yoshida, 2012), will be forced to adapt again, but to a cascading series of environmental changes whose dimensions are understood only in outline. Local inhabitants depend on agriculture, stockbreeding and on fragile transport, building and water infrastructure. Human survival skills and adaptive capacity to environmental changes depend on unique social structures, history and culture, which have undergone Russian socialistic modernization.
Regional climate in Siberia are based on energy and water exchanges and thus on changes in surface reflectance of snow, ice and vegetation coverage. Such changes should be monitored continuously as long as possible. The Lena River Basin in Eastern Siberia is covered in larch forest but receives little precipitation (Ohta et al., 2001; 2008). The area is an ideal setting in which to study the effects of climate warming, as the forest-permafrost symbiosis (Zhang et al., 2011) is extremely susceptible to abnormal variations in temperature and precipitation.
We have started monitoring of energy and water exchanges between larch forest and the atmosphere since 1998 at Yakutsk, middle part of the Lena River Basin in Eastern Siberia (Ohta et al., 2001). This monitoring revealed that the region suffered from extraordinary high precipitation in late-summer through winter from 2005 to 2008 (Hiyama et al., 2013). This resulted in not only permafrost degradation (Iijima et al., 2010), but also changes in terrestrial ecosystems and hydrological elements in the region (Shiklomanov and Lammers, 2009; Brutsaert and Hiyama, 2012; Zhang et al., 2013).

 

b) Research methods and organization
This research project takes natural and social science perspectives on three aspects of climate-associated environmental change. It is designed to: 1) describe current variation in water and carbon cycles and predict likely variation in the near future; 2) make field observations of the effect of carbon and hydrologic variability in Eastern Siberian landscapes, and identify key exchanges or driving forces; and 3) examine the capability of the multi-ethnic Siberian peoples, and their distinct social economies, to adapt to predicted change in their climate and terrestrial ecosystems. Three research groups are organized (Fig. 1) in order to realize these goals. They are the Siberia bird’s-eye group (Group 1), the Water cycle and ecosystem interaction group (Group 2), and the Human ecology group (Group 3). This project is jointly conducted by Japanese and Russian universities and research institutes.

○Progress and Results in 2019

Two interdisciplinary research achievements, which are foci from FR3 to FR5, are as follows.

 

1) Adaptations of local residents living along the Lena River to seasonal river floods
    Arctic sea ice extent in summer, especially in the Eurasian continent side, has been decreasing partly owing to global warming. As a result, cyclones have been frequently appeared in summer over the region. Such cyclones easily propagate to Siberia (Zhang et al., 2013), and they derive plenty of precipitation in the region. Meteorological data revealed summer precipitation around upper and middle parts of the Lena River Basin became drastically high from 2005 to 2008 as well as in 2012. Consequently around Yakutsk, capital city of the Sakha Republic of the Russian Federation, summer river floods appeared and they derived severe damages to local farmers and cattle-horse pastoralism.
    On the contrary, the Lena River derives spring ice breaking floods every year. Theoretically the spring ice breaking floods become severe in case former winter temperature was low and current spring temperature rise is very gradually. In such case, spring floods derive severe damages to local residents living along the Lena River.
    Using archival sources, remotely sensed data, and numerical simulations, we revealed decadal (and/or historical) changes in spring- and summer-river floods of the Lena River.We found that local residents were damaged from spring ice breaking floods almost every year after 1998. We also investigated local people's perceptions as well as local government's adaptation strategies for such spring- and summer-river floods. Interestingly spring floods have been recognized as benefits except in case they severely damaged to the villages along the Lena River (Takakura, 2013). This is because spring floods derive nutrient rich water to the river sandbanks, on which the farmers cultivate pastures for cattle-horse pastoralism. While on the contrary, in case summer river floods appear, it has been recognized as hazards. This is because it submerges the pasture completely for a long duration in summer, and it made impossible to get hay for cattle-horse.

    We additionally found that increased floods disrupt cold-weather transport via ordinarily frozen rivers and warm-weather transport over land. As result we note that local communities locating very far from the capital city (Yakutsk) are increasingly remote and difficult to access. Consequently, disaster vulnerability has increased in such region and thus their adaptation become more difficult.
    Therefore, migrations of villages were applied as one of the adaptation strategies to prevent spring river floods and the remoteness. Because local peoples prefer to live along the river to do their subsistence activities, those peoples and the government agreed to apply seasonal migrations.
On the other hand, both local peoples and the government have no adaptation ways for the summer river floods.We therefore propose development of information transmission (communications) on river flood (to prevent spring river floods) as well as improvement of distribution network of hay (to adapt summer river floods) as suitable adaptation strategies for their sustainable cattle-horse subsistence activities along the Lena River.

 

2) Adaptations of keepers and/or hunters of reindeers to social-environmental changes
    Interviews with keepers of domestic reindeer revealed that current climate change has not severely damaged their operations. It appears that so far they have been able to successfully adapt to changes in climate, especially in Eastern Siberia. This related to resilient use of microhabitat of the domesticated reindeers around the camping sites. While on the contrary, they were severely impacted by social changes following the collapse of the former Soviet Union. The keepers do not feel air temperature rise (warming) but do feel (remember) heavy rainfall and/or flood events as recent climate change. They fear waterlogging in lower land, especially around flooding plain of small rivers. Additionally, the keepers pointed out increase of carnivore (such like) wolf around their camping sites. They also said recent climate changes affect degradation of reindeer moss in winter, so that birth-rate and weight of reindeers tend to decline.
    We also tracked and documented the migration routes and seasonal behaviours of wild reindeers. In this project, we successively tracked routes of wild reindeers using an ARGOS satellite system. MODIS satellite showed that reindeer have moved along rivers and through zones of better vegetation conditions, while avoiding increasingly common forest fires. Migration distance was very similar to those documented in North America and North Europe. Seasonal behaviours in Siberian wild reindeers were also similar to those in North America and North Europe. The seasonal behaviours are classified into summer breeding season, winter hibernating season, and other migration seasons.
    System dynamics (SD) model was applied in order to diagnose and propose adaptation strategies for keepers of domestic reindeers and/or hunters of wild reindeers to social-environmental changes. In order to keep wild reindeer population, it is better to establish sanctuary in winter hibernating place. And in order to protect reindeer keeping, as one of the very important subsistence activities in Siberia, governmental subsidies should be provided to the keepers of reindeers and to hunters of carnivore.

 

3) Summary
    Human - nature interaction owing to climate change (climate warming and waterlogging) as well as social change (economy-orientation and collapse of the former Soviet Union) has been successfully described. It shows reindeer-related subsistence activities and river flood impacts to the local residents. Adaptation strategies are proposed for both issues.

○Project Members

HIYAMA Tetsuya ( Research Institute for Humanity and Nature,Associate Professor,Management of Project, Analysis of permafrost and groundwater )

YAMAGUCHI Yasushi ( Nagoya University,Professor,Analysis of the changes in the land cover using satellite data )

SASAI Takahiro ( Nagoya University,Assistant Professor,Analysis of carbon exchanges using the terrestrial biosphere model )

INOUE Gen ( Atmosphere and Ocean Research Institute, The University of Tokyo,Visiting Professor,GOSAT data analysis )

MAKSYUTOV Shamil ( National Institute for Environment Studies,Chief Researcher,Carbon budget estimation from GOSAT and other observation data )

SAKAI Toru ( National Institute for Agro-Environmental Sciences,Researcher,Flood monitoring using satellite remote sensing )

KIM Heonsook ( National Institute for Environment Studies,Researcher,Inverse model analysis of GOSAT data )

KANZAWA Hiroshi ( Nagoya University,Professor,Scenario of global warming in Siberia )

SATO Hisashi ( Nagoya University,Associate Professor,Ecological modeling )

OHTA Takeshi ( Nagoya University,Professor,Analysis of water energy and carbon cycles in forests, water balance analysis in a basin scale )

OSHIMA Kazuhiro ( JAMSTEC,Researcher,Climate Analysis in Siberia )

KOTANI Ayumi ( Nagoya University,Assistant Professor,Analysis of atmospheric boundary layer and forest responses to environmental changes )

SUGIMOTO Atsuko ( Hokkaido University,Professor,Reconstruction of past changes in environment and vegetation activity )

TEI Shunsuke ( Hokkaido University,Ph D Candidate,Reconstruction of past changes in environment and vegetation activity )

KODAMA Yuji ( National Institute of Polar Research,Associate Professor,Analysis of snow accumulation processes )

YAMAZAKI Takeshi ( Tohoku University,Associate Professor,Analysis of land surface processes using a land surface model )

YONENOBU Hitoshi ( Naruto University of Education,Associate Professor,Reconstruction of past tree grow rate and past climate )

HATTA Shigemi ( Tomakomai National College of Technology,Associate Professor,Runoff analyses for continental-scale river basin )

YAMAMOTO Kazukiyo ( Nagoya University,Associate Professor,Analysis of vegetation phenology using satellite data )

PARK Hotaek ( JAMSTEC,Senior Researcher,Analysis of snow accumulation processes )

MAXIMOV Trofim C. ( Insitute for Biological Problems of Cryolithozone, SD, RAS,Head researcher,Analysis of photosynthesis in boreal forests )

KONONOV Alexander V. ( Insitute for Biological Problems of Cryolithozone, SD, RAS,Researcher,Analysis of photosynthesis in boreal forests )

MAXIMOV Ayal ( Insitute for Biological Problems of Cryolithozone, SD, RAS,Researcher,Analysis of photosynthesis in boreal forests )

SHEPELEV Victor ( Melnikov Permafrost Institute, SD, RAS,Vice-Director,Dynamics of suprapermafrost and intrapermafrost groundwater in permafrost region )

FEDOROV Alexander ( Melnikov Permafrost Institute, SD, RAS,Head researcher,Landscapes (forest) disturbance and permafrost dynamics )

GOTOVSEV Semen ( Melnikov Permafrost Institute, SD, RAS,Head researcher,Thermo-erosional gullies in permafrost region )

KOLESNIKOV Alexander ( Melnikov Permafrost Institute, SD, RAS,Researcher,Dynamics of suprapermafrost and intrapermafrost groundwater in permafrost region )

GAGARIN Leonid ( Melnikov Permafrost Institute, SD, RAS,Researcher,Dynamics of suprapermafrost and intrapermafrost groundwater in permafrost region )

TAKAKURA Hiroki ( Tohoku University,Professor,Related analysis of freezing water environmental use and an occupation in the rural society of the Lena middle region; Relational analysis of an occupation pattern and environmental change in East Siberia )

OKUMURA Makoto ( Tohoku University,Professor,Survey and analysis of the history and technology of transportation in East Siberia )

YOSHIDA Atsushi ( Chiba University,Professor,Analysis in Relationship between Subsistence System Patterns and Environmental Changes in West Siberia )

NAKADA Atsushi ( Hokkaido Museum of Northern Peoples,Chief Curator,Analysis in Relationship between Subsistence System Patterns and Environmental Changes in Southern Siberia )

IKEDA Tohru ( Hokkaido University,Professor,Animal resource use and environmental analysis in Eastern Siberia )

TATSUZAWA Shiro ( Hokkaido University,Assistant Professor,Ecological study of wild/domestic reindeer in Eastern Siberia )

ISHI Atsushi ( Tohoku University,Associated professor,Analysis of society and development in Sakha Republic from the international viewpoint )

SASAKI Shiro ( National Museum of Ethnology,Professor,Analysis in Relationship between Subsistence System Patterns and Environmental Changes in Yakutia )

EHARA Sayuri ( Sapporo Otani University,lecture,Environmental recognition of Sakha people in Eastern Siberia )

IGNAT’EVE Vanda B. ( Humanitarian Research Institute, Sakha Republic Science Academy,Professor,Sociological survey and relational analysis of society and development in Sakha Republic. )

SARDANA Boyakova ( Humanitarian Research Institute, Sakha Republic Science Academy,Professor,History of Infrastructure and Transportation System in East Siberia )

FUJIWARA Junko ( Research Institute for Humanity and Nature,Researcher,Cultural anthropology focusing to shamanism )

YAMADA Hitoshi ( Tohoku University,Associate professor,Mythology, folklore of Siberia )

EBATA Fuyuki ( Niigata University,Associate professor,Linguistics of Sakha Republic )

NAGAYAMA Yukari ( Hokkaido University,Assistant Professor,Environmental recognition of native people in Eastern Siberia )

○Future Themes

 Future research issues in this project are to co-design and to co-produce next new trans-disciplinary results with local residents as well as the governments.

Books

【Authored/Co-authored】

Takakura,H. 2012,01 Arctic Pastoralist Sakha:Ethnography of Evolution and Micro- adaptation in Siberia. Showado, 301pp. (in Japanese)

Takakura, H. and Soga, T. 2011,12 Nomads in Siberia and Africa: Livelihood with livestock in Arctic and Desert. Tohoku University Press, Sendai, 205pp. (in Japanese)

Stammler, F. and Takakura, H. 2010 Good to eat, good to live with: Nomads and animals in Northern Eurasia and Africa. Tohoku University

【Chapters/Sections】

Takakura, H. 2012,04 Chapter introduction,5,final -Ethnography of ice: Knowledge and subsistence of Sakha in the middle basin of Lena River. Living in Siberia, a land of extreme cold: Reindeer, ice and indigenous peoples. Shinsensha. (in Japanese)

Sasaki,S. 2012,04 Chapter 1-Migration of humankind to the Siberia. Living in Siberia, a land of extreme cold: Reindeer, ice and indigenous peoples. Shinsensha, pp.30-46. (in Japanese)

Nakada, A. 2012,04 Chapter 2- Historical development of reindeer herding and origin of domestication. Living in Siberia, a land of extreme cold: Reindeer, ice and indigenous peoples. Shinsensha, pp.49-66. (in Japanese)

Fujiwara, J. 2012,04 Chapter 3- Russians in Siberia. Living in Siberia, a land of extreme cold: Reindeer, ice and indigenous peoples. Shinsensha, pp.69-87. (in Japanese)

Hiyama, T. 2012,04 Chapter 4- Environment in the Far North and Northern High Latitude. Living in Siberia, a land of extreme cold: Reindeer, ice and indigenous peoples. Shinsensha, pp.98-111. (in Japanese)

Yoshida, A 2012,04 Chapter 6- Reindeer herding and the problem of industrial development and environment in Siberia. Living in Siberia, a land of extreme cold: Reindeer, ice and indigenous peoples. Shinsensha, pp.137-153. (in Japanese)

Ikeda, T. 2012,04 Chapter 7- Ecological conservation and invasive alien species issues with relation to utilization of furbearers. Living in Siberia, a land of extreme cold: Reindeer, ice and indigenous peoples. Shinsensha, pp.157-171. (in Japanese)

Okumura,M. 2012,04 Chapter 8-Roadway over the river ice. Living in Siberia, a land of extreme cold: Reindeer, ice and indigenous peoples. Shinsensha, pp.173-191. (in Japanese)

Nagayama,Y. 2012,04 Chapter 9-Various language of former inhabitants in Siberia. Living in Siberia, a land of extreme cold: Reindeer, ice and indigenous peoples. Shinsensha, pp.198-218. (in Japanese)

Yamada,H. 2012,04 Chapter 10-Mythology and world view of the Siberian shamanism. Living in Siberia, a land of extreme cold: Reindeer, ice and indigenous peoples. , pp.219-236. (in Japanese)

Hiyama, T. 2011,08 Water Environments. Shimizu, H. et al. (ed.) A textbook from the viewpoint of relations of humanity. Nagoya University Press. (in Japanese)

Nagayama, Y. 2011 Grammatical sketches from the field: Concise grammatical descriptions based on primary data. Yamakoshi, Y. (ed.) Linguistic Dynamics Science Project Publication Series. , Research Institute for Languages and Cultures of Asia and Africa.

Park, H., Yamazaki, T. and Ohta, T. 2011 Responses of energy budget and evapotranspiration to climate change in eastern Siberia. Evapotranspiration. InTech.

Fujiwara, J. 2011 Revival of Magic in Contemporary Russia. Nonaka, S. et al (ed.) An Ark of Russian Culture: 20 years after the Collapse of the Soviet Union. Tokyo Toyoshoten, pp.72-81. (in Japanese)

Akiyama, T., Kawamura, K., Fukuo, A., Sakai, T., Chen, Z. and Saito, G. 2010 Evaluation of grazing pressure on steppe vegetation by spectral measurement. Runas, J. and Dahlgren, T. (ed.) Grassland Biodiversity: Habitat Types, Ecological Processes and Environmental Impacts. Nova Science Publishers, NY, pp.201-222.

Ohta, T. 2010 Hydrological Aspects in a Siberian Larch Forest. Osawa A. et al. (ed.) Permafrost Ecosystems. , pp.245-269.

Sakai, T., Muraoka, H. Akiyama, T., Shibayama, M. and Awaya, Y. 2009 Quantitative analysis of canopy photosynthesis influenced by light simulation models. Creighton, J.D. and Roney, P.J. (ed.) Forest Canopies: Forest Production, Ecosystem Health, and Climate Conditions. Nova Science Publishers, NY, pp.51-70.

Editing

【Editing / Co-editing】

Takakura, H. (ed.) 2012,04 Living in Siberia, a land of extreme cold: Reindeer, ice and indigenous peoples. Shinsensha, 272pp. (in Japanese)

Shimizu, H., Hiyama, T. and Kawamura, N. (ed.) 2011,08 Water Environments: A textbook from the viewpoint of relations of humanity. Nagoya University Press, 311pp. (in Japanese)

Papers

【Original Articles】

Ohta T, Kotani A, Iijima Y, Maximov TC, Ito S, Hanamura M, Kononov AV. Maximov AP 2014,01 Effects of waterlogging on water and carbon dioxide fluxes and environmental variables in a Siberian larch forest, 1998 - 2011.. Agricultural and Forest Meteorology 188:64-75. (reviewed).

Kotani, A., Kononov, A., Ohta, T., and Maximov, T. 2013,11 Temporal variations in the linkage between the net ecosystem exchange of water vapour and CO2 over boreal forests in eastern Siberia.. Ecohydrology. DOI:10.1002/eco.1449 (reviewed).

Hiyama, T., Asai, K., Kolesnikov, A.B., Gagarin, L.A. and Shepelev, V.V. 2013,09 Estimation of residence time of permafrost groundwater in the middle of the Lena River basin, eastern Siberia. Environmental Research Letters 8:035040. DOI:10.1088/1748-9326/8/3/035040 (reviewed).

Hiyama, T., Ohta, T., Sugimoto, A., Yamazaki, T., Oshima, K., Yonenobu, H., Yamamoto, K., Kotani, A., Park, H., Kodama, Y., Hatta, S., Fedorov, A.N. and Maximov, T.C. 2013,07 Changes in eco-hydrological systems under recent climate change in eastern Siberia. IAHS Publication 360:155-160. (reviewed).

Yamazaki, T., K. Kato, T. Ito, T. Nakai, K. Matsumoto, N. Miki, H. Park and T. Ohta, 2013,06 A Common Stomatal Parameter Set to Simulate the Energy and Water Balance over Boreal and Temperate Forests.. Journal of Meteorological Society of Japan 91:273-285. DOI:10.2151/jmsj.2013-303 (reviewed).

Fedorov, A.N., Gavriliev, P.P., Konstantinov, P.Y., Hiyama, T., Iijima, Y. and Iwahana, G. 2013,04 Estimating the water balance of a thermokarst lake in the middle of the Lena River basin, eastern Siberia. Ecohydrology. DOI:10.1002/eco.1378 (reviewed).

Tei, S., Sugimoto, A., Yonenobu, H., Hoshino, Y. and Maximov, T.C. 2013,02 Reconstruction of summer Palmer Drought Severity Index from δ13C of larch tree rings in East Siberia. Quaternary International 290-291:275-281.

Yoshida, R., Sawada M., Yamazaki, T., Ohta, T., Hiyama, T. 2013,02 Influence of Land Cover Change on Regional Water Cycles in Eastern Siberia. Journal of Applied Meteorology and Climatology 52:484-497.

Nakai T., Y. Kim, R. C. Busey, R. Suzuki, S. Nagai, H. Kobayashi, H. Park, K. Sugiura, A. Ito, 2013 Characteristics of evapotranspiration from a permafrost black spruce forest in interior Alaska.. Polar science 7:136-148. (reviewed).

Park H., J. Walsh, A. N. Fedorov, A. B. Sherstiukov, Y. Iijima, and T. Ohata, 2013 The influence of climate and hydrological variables on opposite anomaly in active-layer thickness between Eurasian and North American watersheds. Cryosphere 7(2):631-645. DOI:10.5194/tc-7-631-2013 (reviewed).

Walsh J., H. Park, W. L. Chapman, and T. Ohata, 2013 Relationships between variations of the land-ocean-atmosphere system of northeastern Asia and northwestern North America.. polar science 7:188-203. DOI:10.1016/j.polar.2013.05.002. (reviewed).

Brutsaert, W. and Hiyama, T 2012,11 The determination of permafrost thawing trends from long-term streamflow measurements with an application in eastern Siberia. Journal of Geophysical Research 117(D22110). DOI:10.1029/2012JD018344.

Hiyama, T. 2012,08 Visit to valuable water springs (98): Water in vicinity of Yakutsk, Eastern Siberia.. Journal of Groundwater Hydrology(54):171-181. (in Japanese)

Takakura, H. 2012 The shift from herding to hunting among the Siberian Evenki: Indigenous knowledge and subsistence change in Northwestern Yakutia.. Asian Ethnology 71:31-47.

Lopez, L., Hatano, R., Guggenberger, G., Ohta, T., Gerasimov, E. and Fedorov, A. 2012 Forest fires effects on carbon stocks and soil chemistry in central Yakutia, eastern Siberia. . Eurasian Journal of Forest Research(15-1):9-17.

Park, H., Walsh, J., Kim, Y., Nakai, T. and Ohata, T. 2012 The role of declining Arctic sea ice in recent decreasing terrestrial Arctic snow depths. Polar Science. DOI:10.1016/j.polar.2012.10.002.

Xue, B.L., Komatsu, H., Kumagai, T., Kotani, A., Otsuki, K., Ohta, T. 2012 Interannual variation of evapotranspiration in an eastern Siberian larch forest. Hydrological Processes(26):2360-2368. DOI:10.1002/hyp.9195

Boyakova S.I. 2012 Legal, social and economic aspects of the development of the Northern Sea Route in today. Legal and socio-economic problems of the Arctic peoples. Materials Intl. Scientific-practical conference 2011(9):56-66.

Yamazaki, T., S. Tei, A. Sugimoto and T. Ohta 2012 Long-term estimation of soil freezing and snow cover in a taiga forest in eastern Siberia. Tohoku Journal of Snow and Life 27(38):39. (in Japanese)

Dolman, A. J., Shvidenko, A., Schepaschenko, D., Ciais, P., Tchebakova, N., Chen, T., van der Molen, M. K., Belelli Marchesini, L., Maximov, T. C., Maksyutov, S. and Schulze, E.-D. 2012 An estimate of the terrestrial carbon budget of Russia using inventory based, eddy covariance and inversion methods.. Biogeosciences Discuss 9:6579-6626. DOI:10.5194/bgd-9-6579-2012

Ignatyeva, V. 2012 On the preservation of traditional farming due to global climate change. Ethno-political situation in Russia and neighboring countries in 2011. Annual report EAWARN and Early Warning 2011:547-554. (in Russian)

Park, H., Walsh, J., Fedorov, A., Sherstiukov, A., Iijima, Y. and Ohata, T. 2012 The influence of climate and hydrological variables on opposite anomaly in active layer thickness between Eurasian and North American watersheds. Cryosphere Discus. DOI:10.5194/tcd-6-2537-2012

van der Molen, M.K., Dolman, A.J., Ciais, P., Eglin, T., Gobron, N., Law, B.E., Meir, P., Peters, W., Phillips, O.L., Reichstein, M., Chen, T., Dekker, S.C., Doubkov, M., Friedl, M.A., Jung, M., van den Hurk, B.J.J.M., de Jeu, R.A.M., Kruijt, B., Ohta, T., Rebel, K.T., Plummer, S., Seneviratne, S.I., Sitch, S., Teuling, A.J., van der Werf, G.R., Wang, G. 2011,07 Drought and ecosystem carbon cycling. Agricultural and Forest Meteorology(151):765-773.

Murakami, T., Ikeda, T. and Shimada, K. 2011 Current distribution of an invasive alien species, the American mink Neovison vison, in Shiretoko peninsula and its adjacent areas.. Bulletin of the Shiretoko Museum(33):61-67. (in Japanese)

Ebata,F. 2011 Syntactic derivation and nominalization/verbalization in Sakha (Yakut).. Linguistic Typology of the North(2):67-85.

Yoshida, R., Sawada, M., Yamazaki, T. 2011 Roles of Eastern Siberian mountain ranges in precipitation: Verkhoyansk, Dzhugdzhur and Stanovoy mountain ranges. . SOLA 7:145-148. DOI:10.2151/sola.2011-037.

Nakada, A. 2011 Reindeer herding of Even in Sakha republic.. Hokkaido Journal of Ethnology 7:85-87. (in Japanese)

Yamazaki, T. 2011 Snow cover, snowmelt and snow accretion in forest. Tohoku Journal of Snow and Life, special issue commemorating 25 years of Tohoku branch,:215-219. (in Japanese)

Iijima, Y., Fedorov, A.N., Park, H., Suzuki, K., Yabuki, H., Maximov, T. C., and Ohata 2010,03 Abrupt increases in soil temperatures following increased precipitation in a permafrost region, central Lena river basin. Russia,. Permafrost and Periglacial processes(21):30-41. DOI:10.1002/ppp.662

Suzuki, R., Kobayashi, H., Delbart, N., Asanuma, J. and Hiyama, T. 2011,11 NDVI responses to the forest canopy and floor from spring to summer observed by airborne spectrometer in eastern Siberia. Remote Sensing of Environment 115:3615-3624. (reviewed).

Kobayashi, N. and Hiyama, T. 2011,03 Stability dependence of canopy flows over a flat larch forest. Boundary-Layer Meteorology 139:97-120. (reviewed).

Xue BL, Kumagai T, Iida S, Nakai T, Matsumoto K, Komatsu H, Otsuki K, Ohta T. 2011 Influences of canopy structure and physiological traits on flux partitioning between understory and overstory in an eastern Siberian boreal larch forest.. Ecological Modeling(222):1479-1490.

Kim, H.-S., Maksyuotv, S., Glagolev, M. V., Machida, T., Patra, P. K., Sudo, K. and Inoue, G. 2011 Evaluation of methane emissions from West Siberian wetlands based on inverse modeling. Environmental Research Letters 6. DOI:10.1088/1748-9326/6/3/035201. (reviewed).

Hirata, Y., Furuya, N., Sakai, A., Takahashi, T., Awaya, Y. and Sakai, T. 2011 Segmentation and classification with discriminant analysis of QuickBird multispectral and panchromatic data to distinguish Cryptomeria japonica and Chamaecyparis obtusa patches.. Journal of Forest Planning(16):273-284. (reviewed).

Zhang N, Yasunari T, Ohta T. 2011 Dynamics of the larcht taiga - permafrost coupled system in Siberia under climate change.. Environmental Research Letters 6. DOI:024003

Miyahara M. Tanenaka C, Tomioka R, Ohta T. 2011 Root responses of Siberian larch to different soil water conditions.. Hydrological Research Letters. 5:93-97.

Park H, Iijima Y, Yabuki H, Ohta T, Walsh J, Kodama Y, Ohata 2011 The application of a coupled hydrological and biogeochemical model (CHANGE) for modeling of energy, water, and CO2 exchanges over a larch forest in eastern Siberia.. Journal of Geophesical Research.(116). DOI:10.1029/2010JD015386. 2011

Park H, Yabuki H, Ohata T, 2011 Analysis of satellite and model datasets for variability and trends in Arctic snow extent and depth,1948-2006. Polar Science. DOI:10.1016/j.polar.2011.11.002

Kobayashi, N., Inoue, G., Kawasaki, M., Yoshioka, H., Minomura, M., Murata, I., Nagahama, T., Matsumi, Y., Tanaka, T., Morino, I. and Ibuki, T. 2010 Remotely operable compact instruments for measuring atmospheric CO2 and CH4 column densities at surface monitoring sites. Atmospheric Measurement Techniques 3:1103-1112. (reviewed).

Glagolev, M.V., Kleptsova, I.E., Filippov, I.V., Kazantsev, V.S., Machida, T. and Maksyutov, S.S. 2010 Methane emissions from subtaiga mires of Western Siberia: The "Standard Model" Bc5. Moscow University Soil Science Bulletin 65:86-93. (reviewed).

Ueyama, M., Iichi, K., Hirata, R., Takagi, K., Asanuma, J., Machimura, T., Nakai, Y., Ohta, T., Saigusa, N., Takahashi, Y. and Hirano, T. 2010 Simulating carbon and water cycles of larch forests in East Asia in the BIOME-BGC model with AsiaFlux data. Biogeosciences 7:959-977. (reviewed).

Sasakawa, M., Shimoyama, K., Machida, T., Tsuda, N., Suto, H., Arshinov, M., Davidov, D., Fofonov, A., Krasnov, O., Saeki, T., Koyama, Y. and Maksyutov, S. 2010 Continuous measurement of methane concentration using 9-tower network over Siberia. Tellus 62:403-416. DOI:doi:10.1111/j.1600-0889.2010.00494.x (reviewed).

Yoshida, M., Ohta, T., Kotani, A. and Maximov, T.C. 2010 Environmental factors controlling forest evapotranspiration and surface conductance on a multitemporal scale in growing seasons of a Siberian larch forest. Journal of Hydrology 395:143-156. (reviewed).

Saigusa, N., Ichii, K., Murakami, H., Hirata, R., Asanuma, J., Den, H., Han,S.-J., Ide, R., Li, S.-G., Ohta, T., Sasai, T., Wang, S.-Q. and Yu, G.-R. 2010 Impact of meteorological anomalies in the 2003 summer on gross primary productivity in East Asia. Biogeosciences 7:641-655. (reviewed).

Sasaki, S. 2010 Voices of hunters on the socialist modernization: From a case study of the Udehe in the Russian Far East. Inner Asia. Inner Asia 12:177-197. (reviewed).

Fujiwara, J. 2010 Rediscovery of the 'Reality' of Magic: Revival of Magic in Post-Socialist Russia. Inner Asia 12:143-156. (reviewed).

Iida, S., Ohta, T., Matsumoto, K., Nakai, T., Kuwada, T., Kononov, A.V., Maximov, T.C., van der Molen, M.K., Dolman, A.J., Tanaka, H. and Yabuki, H. 2009 Evapotranspiration from understory vegetation in an eastern Siberian boreal larch forest. Agric. For. Meteorol. 149:1129-1139. (reviewed).

Takakura, H. 2009 The concept of manhood in post-socialist Siberia: The Sakha father as a wise hunter and a pastoralist. Sibirica 8:45-67. (reviewed).

Rutter, N., Essery, R., Pomeroy, J., Altimir, N., Andreadis, K., Baker, I., Barr, A., Bartlett, P., Boone, A., Deng, H., Douville, H., Dutra, E., Elder, K., Ellis, C., Feng, X., Gelfan, A., Goodbody, A., Gusev, Y., Gustafsson, D., Hellstrom, R., Hirabayashi, Y., Hirota, T., Jonas, T., Koren, V., Kuragina, A., Lettenmaier, D., Li, W., Luce, C., Martin, E., Nasonova, O., Pumpanen, J., Pyles, R.D., Samuelsson, P., Sandells, M., Schadler, G., Shmakin, A., Smirnova, T.G., Stahli, M., Stockli, R., Strasser, U., Su, H., Suzuki, K., Takata, K., Tanaka, K., Thompson, E., Vesala, T., Viterbo, P., Wiltshire, A., Xia, K., Xue, Y. and Yamazaki, T. 2009 Evaluation of forest snow processes models (SnowMIP2). J. Geophysical Research 114:D06111. DOI:10.1029/2008JD011063 (reviewed).

Research Presentations

【Oral Presentation】

Saito, A., Kotani, A., Ohta, T., Iijima, Y., Primary factors in interannual variation of latent heat fluxes from overstory and understory in Siberian larch forest. The 125th Japan Forestry Society, 2014.03.26-2014.03.30, 大宮.

Maksyutov S.S., V. Sedykh, I. Kleptsova, A. Frolov, A. Silaev, E. Kuzmenko, S. Farber, N. Kuzmik, V.A. Sokolov, A. Fedorov, S. Nikolaeva Mapping forest succesion types in Siberia with Landsat data. American Geophysical Union Fall Meeting, 2013.12.09-2013.12.13, San Francisco, U.S.A..

Park H. and H. Yabuki, Warming-induced changes of the hydrologic system in the terrestrial Arctic.. AGU2013, 2013.12.11, San Francisco, USA.

Saito, A., Kotani, A., Ohta, T., Maximov, T.C., Kononov, A.V., Changes in latent heat fluxes from overstory and understory vegetation with appearance of dead trees in eastern Siberian larch forest. Meteorological Society of Japan 2013 Autumn meeting, 2013.11.19-2013.11.21, Sendai city.

Okumura Makoto Adaptation Strategies for Risk and Uncertainty: The Role of an Interdisciplinary Approach including Natural and Human Sciences. RIHN 8th International Symposium "Risk Societies, Edge Environments: Ecosystems and Livelihoods in the Balance”, 2013.10.24-2013.10.24, Kyoto,Japan.

Fujiwara, J. Flood risk and migration in the Republic of Sakha (Yakutia).. RIHN 8th International Symposium “Risk Societies, Edge Environments: ecosystems and Livelihoods in the Balance, 2013.10.23-2013.10.25, Kyoto, Japan.

Tetsuya Hiyama, Toru Sakai, Shamil Maksyutov, Heonsook Kim, Takahiro Sasai, Yasushi Yamaguchi, Atsuko Sugimoto, Shunsuke Tei, Takeshi Ohta, Ayumi Kotani, Kazukiyo Yamamoto, Takeshi Yamazaki, Kazuhiro Oshima, Hotaek Park, Trofim C. Maximov, Alexander N. Fedorov Global warming and changes in Siberian terrestrial environments. 2nd International Conference on "Global Warming and the Human-Nature Dimension in Siberia: Social Adaptation to the Changes of the Terrestrial Ecosystem, with an Emphasis on Water Environments", 2013.10.08-2013.10.11, Lecture Hall, National Academy of Republic of Sakha (Yakutia), Yakutsk, Russia.

Maksyutov, S. and Sedykh, V. Forest mapping using Landsat data in Lar’yegan basin. 2nd International Conference on “Global Warming and the Human-Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Sakai, T. The impact of flood over the Lena river. 2nd International Conference on Global Warming and the Human-Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Yamaguchi, Y., Chen, X., and Yamamoto, K. Comparison of vegetation changes in Siberia detected by SPOT-vgt and MODIS data. 2nd International Conference on Global Warming and Human-Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Yoshida, R., M. Sawada, T. Yamazaki, T. Ohta and T. Hiyama, Estimation of regional water cycle changes by various land-cover-change scenarios in eastern Siberia. 2nd International Conference on Global Warming and the Human-Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Nagayama, Y. Indigenous Weather Knowledge in Kamchatka.. 2nd International Conference on “Global Warming and the Human-Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Yoshida A. Reindeer herding and Environmental Change in the Kobyai and Olenek districts. 2nd International Conference“Global Warming and the Human Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Oishi Yuka Reindeer Herding of Northern Khanty and Forest Nenets in the Post- soviet Era.. 2nd International Conference on "Global Warming and the Human-Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Yamazaki, T. Long-term simulation of soil condition and energy flux in eastern Siberian taiga forests. 2nd International Conference on Global Warming and the Human-Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russsia.

Ebata, Fuyuki The nature words in Sakha, compared with other Turkic languages.. 2nd International conference on Global Warming and the Human-Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Makoto Okumura Vulnerability of Infrastructure based on Physical Characteristics of Ice. 2nd International Conference "Global Warming and the Human-Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Kagatsume, M. Effect of global warming on the Reindeer Nomads ecosystems and their adjustments after restructuring of government system – the approach by the system dynamics model.. 2nd International Conference on Global Warming and the Human-Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Tachibana, Y., K. Oshima and T. Hiyama Climatological features of atmospheric and terrestrial water cycles in the great three Siberian.. 2nd International Conference , 2013.10.08-2013.10.11, Yakutsk、Russia.

Ayumi Kotani, Takeshi Ohta, Alexander Kononov, Trofim Maximov Net ecosystem water use efficiency over two larch forests at eastern Siberia.. 2nd International Conference on "Global Warming and the Human-Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk,Russia.

Park H. and A. N. Fedorov, Simulating the contribution of snow conditions to permafrost climate.. 2nd International Conference on Global Warming and the Human- Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Ayumi Kotani Hydrological studies of a larch forest at northeastern Siberia. Russian-Japanese Symposium on Global Climate Change, 2013.09.05, Krasnoyarsk, Russia..

Ayumi Kotani, Miharu Hayashi, Takeshi Ohta, Trofim C Maximov Forest Evapotranspiration and CO2 Flux over Larch Forests with Different Canopy Structure at Eastern Siberia.. 11th Asiaflux international workshop, 2013.08.22, Seoul, Korea.

Hiyama, T., T. Ohta, A. Sugimoto, T. Yamazaki, K. Oshima, H. Yonenobu, K. Yamamoto, A. Kotani, H. Park, Y. Kodama, S. Hatta, A.N. Fedorov, T.C. Maximov Changes in eco-hydrological systems under recent climate change in eastern Siberia. IAHS-IAPSO-IASPEI Joint Assembly "Knowledge for the Future", Session H02 "Cold and mountain region hydrological systems under climate change: towards improved projections", 2013.07.22-2013.07.26, Gothenburg, Sweden.

Tetsuya Hiyama, Shamil Maksyutov, Heonsook Kim, Takahiro Sasai, Yasushi Yamaguchi, Atsuko Sugimoto, Hitoshi Yonenobu, Takeshi Ohta, Ayumi Kotani, Kazukiyo Yamamoto, Takeshi Yamazaki, Kazuhiro Oshima, Hotaek Park Global warming and changes in Siberian terrestrial environments. 日本地球惑星科学連合2013年大会, 2013.05.19-2013.05.24, 千葉市(幕張メッセ).

Kazuhiro Oshima, Yoshihiro Tachibana, Tetsuya Hiyama Climatological features of atmospheric and terrestrial water cycles in the three great Siberian rivers. 日本地球惑星科学連合2013年大会, 2013.05.19-2013.05.24, 千葉市(幕張メッセ).

Chen, X. and Yamaguchi, Y. Discrimination between climate and human-induced change of tundra in Siberia. International Symposium on Remote Sensing (ISRS) 2013, 2013.05.15-2013.05.17, Narashino, Chiba.

Sakai, T., Hiyama, T., and Yamaguchi, Y. Satellite observation of ice-jam flood of Lena River in Siberia. International Symposium on Remote Sensing (ISRS) 2013, 2013.05.15-2013.05.17, Narashino,Chiba.

Oshima, K., Y. Tachibana and T. Hiyama Climatological features of atmospheric and terrestrial water cycles in the three great Siberian rivers.. Japan Geoscience Union Meeting 2013, May 2013, Makuhari, Chiba. (in Japanese)

Kleptsova、I.,Maksyutov,S.,and Glagolev,M., Wetland classification based on Landsat and its application for methane emission inventory of West Siberian taiga zone. EGU General Assembly 2013, 2013.04.07-2013.04.12, Vienna,Austria.

Saigusa, N., Suzuki, R., Hiyama, T. and Hayashi, K. Cross-disciplinary research collaboration for early detection of biological feedbacks. Third International Symposium on the Arctic Research (ISAR-3), 2013.01.14-2013.01.17, Tokyo.

Takakura, H., Yoshikawa, Y., Watanabe, M., Sakai, T. and Hiyama, T. Ice movement in the Lena river and the typology of spring flood: An interpretation of local sources integrated with satellite imagery using a multidisciplinary approach. Third International Symposium on the Arctic Research (ISAR-3), 2013.01.14-2013.01.17, Tokyo.

Ignatyeva, V. Demographic problems of the Sakha Republic (Yakutia). International scientific-practical conference "The Arctic zone of the Russian Federation: the north-eastern vector of development", 2012.11.28-2012.11.29, St. Petersburg, Russia. (in Russian)

Nagayama, Y. Cultural succession from folk narratives: A case of Alutor in Kamchatka.. Hokkaido Ethnological Society, Second Annual Meeting 2012, 2012.11.11, Sapporo. (in Japanese)

Yoshida, A. Diversity of food culture among the Siberian indigenous pastoralists. Public symposium of Japan Society of Cultural Anthropology "Global Journey on Food and Rituals: Siberia and Americas", 2012.11.10, Sendai. (in Japanese)

Oshima, K. Interannual variation of the Lena River discharge and its association with atmospheric water cycle. Third Symposium on Polar Science/35th Symposium on Polar Meteorology and Glaciology, November 2012, Tachikawa. (in Japanese)

Ignatyeva, V. and Romanova, E. "Man - the needle of the Earth": problems of preservation of ethnic identity of indigenous peoples of Yakutia in the era of globalization. International Interdisciplinary Conference "Minority communities in the face of globalization: Uniformization, resistance or updated", 2012.10.16-2012.10.19, Yakutsk. (in Russian)

Yamazaki, T., S. Tei, A. Sugimoto and T. Ohta Long-term simulation of soil water content in eastern Siberian taiga forest by a land-surface model. 2012 Annual conference, Japan Society of Hydrology and Water Resources, 2012.09.26-2012.09.28, Hiroshima. (in Japanese)

Hiyama, T. Waterlogging risk in Eastern Siberia: A case study in the permafrost region. World Congress on Risk 2012, Risk and Development in a Changing World, 2012.07.17-2012.07.20, Sydney,AUS.

Ignatyeva, V. Industrial modernization as a factor in environmental, demographic, and social risks in the Republic of Sakha (Yakutia). Scientific Conference "Problems of the socio-economic and political history of Siberia early XX-XXI centuries", 2012.06.14-2012.06.15, Yakutsk. (in Russian)

Ignatyeva, V. and Romanova, E. Anthropology of permafrost: Natural landscape and the "territory ethnicity". International Interdisciplinary Conference "Nature and Culture", 2012.06.13-2012.06.15, Yakuysk. (in Russian)

Fujiwara, J. Remote places hard to access in Russian North. Japan Society of Civil Engineers, 2012.06.02-2012.06.03, Kyoto. (in Japanese)

Sakai, T., Hiyama, T., Fujiwara, J., Gotovtsev, S., and Gagarin, L. Monitoring permafrost degradation in Siberia using microwave remote sensing. Japan Geoscience Union (JpGU), 2012.05.20-2012.05.25, Makuhari, Chiba. (in Japanese)

Tei, S., Sugimoto, A., Yonenobu, H. and Maximov, T.C. Changes in relationship between larch tree growth and climate in eastern Siberia over past 100 years. Japan Geoscience Union Meeting, 2012.05.20-2012.05.25, Makuhari,Chiba. (in Japanese)

Oshima, K. and Hiyama, T. Seasonal and interannual variations of the Lena River discharge and their relationships to atmospheric water cycle. Japan Geoscience Union (JpGU) Meeting 2012, 2012.05.20-2012.05.25, Makuhari, Chiba. (in Japanese)

Oshima, K. Interannual variation of the Lena River discharge and its association with atmospheric water cycle. Meteorological Society of Japan 2012 Spring meeting, May 2012, Tsukuba. (in Japanese)

Hayashi, M, Kotani, A., Ohta, T. Comparison of CO2 flux between two sites in eastern Siberian boreal forest. The 123th Japan Forestry Society, 2012.03.26-2012.03.29, Utsunomiya. (in Japanese)

Hanamura, M., Ohta, T., Kotani, A., Ito S., Maximov, T.C., Kononov, A, Maximov, A. Variability analysis of evapotransipiration in an eastern Siberian larch forest over 12- year (1998-2011). The 123th Japan Forestry Society, 2012.03.26-2012.03.29, Utsunomiya. (in Japanese)

Kotani,A.,Ohta,T. Evapotranspiration over larch forest at eastern Siberia. The 123th Japan Forestry Society, 2012.03.26-2012.03.29, Utsunomiya. (in Japanese)

Kuzmenko, E.I., Maksyutov, S., Trofimova, I.E., and Vladimirov, I.N. Structure and dynamics of forest ecosystem of West Siberia for the assessment of carbon balance components. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia, 2012.03.07-2012.03.09, Kyoto.

Kim, H-S., Makshtov, S., Saeki, T., Belikov, D., and Machida, T. Analysis of Siberian CH4 flux during 1994-2010. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia, 2012.03.07-2012.03.09, Kyoto.

Sabrekov, A.F., Glagolev, M.V., Kleptsova, I.E., and Maksytov, S.S. Methane emissions and its seasonal cycle in subtaiga zone. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia, 2012.03.07-2012.03.09, Kyoto.

Ignatyeva, V. Regional problems of reducing vulnerability to extreme floods and climate change: Уakutia case. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia, 2012.03.07-2012.03.09, Kyoto.

Fedorov, A.N., Gavriliev, P.P., Konstantinov, P.Y., Hiyama, T., Iijima, Y. and Iwahana, G. The Water Balance of Thawing Lakes in Central Yakutia. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia, 2012.03.07-2012.03.09, Kyoto.

Gagarin, L., Kolesnikov, A. and Hiyama, T. Effect of extreme hydroclimatic conditions on groundwater systems in permafrost, Central Yakutia. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia, 2012.03.07-2012.03.09, Kyoto.

Yoshida, A. Vegetation Change of Reindeer Pasture on the Bases of the NDVI Data. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia, 2012.03.07-2012.03.09, Kyoto.

Tei, S., Sugimoto, A., Yonenobu, H. Shingubara, R., Takano, S. and Maximov, T.C. Use of satellite-derived surface soil moisture data to compare with estimated soil moisture based on tree-ring delta-13C and methane emission in eastern Siberia. Final User Workshop ESA Data User Element DUE Permafrost, 2012.02.15-2012.02.17, Potsdam,Germany.

Fujiwara, J. Increase of remoteness of Siberian villages: Social change and environmental change. . Public lecture "Reaction of Local People in Isolated Areas where Traffic Settled", 2011.12.03, Sendai. (in Japanese)

Ignatyeva, V. The "new" and "old" borders in the academic, political and public discourse. Scientific conference with international participation "The phenomenon of borderlands in a dialogue between civilizations", 2011.10.17-2011.10.18, Yakutsk,. (in Japanese)

Yoshida, A. Foraging activities of the Siberian tundra Nenets pastoralists and environmental change. The 26th International Abashiri Symposium: Environmental Change and Subsistence of Northern Peoples, 2011.10.01-2011.10.02, Abashiri,Hokkaido. (in Japanese)

Ignatyeva, V. Problems of sustainable development of the indigenous peoples of Yakutia in the context of the evolution of climate.. IX Congress of ethnologists and anthropologists of Russia "Cultural heritage: A resource of innovation development", 2011.07.04-2011.07.08, Petrozavodsk, Russia. (in Russian)

Fujiwara, J. Increase of remoteness in Siberian villages: Collapse of Soviet Union and global warming. The 9-th RIHN Area Seminar "A look at Eurasia: Environmental problems 20 years after the collapse of the Soviet Union, 2011.06.12, Sapporo. (in Japanese)

Hiyama, T., Asai, K., Kolesnikov, A., Gagarin, L. and Shepelev, V. Residence time of permafrost groundwater at Yakutsk region, Eastern Siberia. Japan Geoscience Union (JpGU) Meeting 2011, 2011.05.22-2011.05.27, Makuhari, Chiba. (in Japanese)

Hiyama,T. Yamaguchi,Y.Ohta,T.Inoue,G. Global warming in Siberia. JpGU 2011, 2011.05.22-2011.05.27, Makuhari,Chiba. (in Japanese)

Ohta, T., Kotani, A. Water/Energy/CO2 exchanges on the twe larch forests in eastern Siberia. Japan Geoscience Union (JpGU) Meeting 2011, 2011.05.22-2011.05.27, Makuhari,Chiba. (in Japanese)

Tei, S., Sugimoto, A., Yonenobu, H. and Maximov, T.C. Reconstruction of the past soil moisture based on delta-13C of larch tree rings in Eastern Siberian. The 58th Annual Meeting of the Ecological Society of Japan, 2011.03.08-2011.03.12, Sapporo. (in Japanese)

Tei, S., Sugimoto, A., Yonenobu, H. and Maximov, T.C. Reconstruction of the past soil moisture based on delta-13C of larch tree rings for analysis of water and carbon cycle in Eastern Siberian. ESA DUE Permafrost workshop, 2011.03.02-2011.03.04, Alaska, Fair banks.

Sakai, T,. Hatta, S., Okumura, M., Takeuchi, W., Hiyama, T. and Inoue, G. Flood monitoring in Siberia using time-series Landsat TM/ETM+. Japan Society of Photogrammetry and Remote Sensing Fall Meeting 2010, 2010.10.14-2010.10.15, Hakodate,Hokkaido. (in Japanese)

Kobayashi, N. and Inoue, G. Emission of greenhouse gases from wildfires in Eastern siberia observed from space. International Conference on Environmental Observations, Modeling and Information Systems (ENVIROMIS-2010), 2010.07.05-2010.07.11, Tomsk,Russia.

Boyakova, S.I., Vinokurova, L.I., Ignatjeva, V.B. and Filippova, V.V. The Peoples of Arctic regions in the conditions of global climatic changes: Stability, transformations, adaptation.. The IX International Symposium on Cold Regions Development, 2010.06.01-2010.06.05, Yakutsk, Russia. (in Russian)

Oshima, K. and Hiyama, T. Seasonal and interannual variations of the Lena River discharge and those relationships with atmospheric water cycle. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia: Social Adaptation to the Changes of the Terrestrial Ecosystem, with an Emphasis on Water Environments", 2012.03.07-2012.03.09, RIHN, Kyoto.

Sardana Boyakova History of development of transport infrastructure in Yakutia. 1st International Conferencec on Global Warming and the Human-Nature Dimension in Siberia, 2012.03.07-2012.03.09, Kyoto.

Okhlopkov, I.M., Tatsuzawa, S., Kirillin, E.V., Nikolaev, E.A. Current Status of the wild reindeer populations and domestic reindeer farming in Sakha Republic.. 1st International Conference on Global Warming and the Human-Nature Dimension in Siberia, 2012.03.07-2012.03.09, Kyoto.

Tatsuzawa, S., Okhlopkov, I.M., Kirillin, E.V., Nikolaev, E.A. The migration of eastern Siberian wild reindeer: where, when, how and why do they do? . 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia, 2012.03.07-2012.03.09, Kyoto.

Fujiwara, J. Climate change in remote places hard to access: Case studies in the Republic of Sakha.. 1st International Conference Global Warming and the Human-Nature Dimension in Siberia, 2012.03.07-2012.03.09, Kyoto.

Sato, H., Kobayashi, H. and Delbart, N. Simulation study of the vegetation structure and function in eastern Siberian larch forests using the dynamic vegetation model SEIB-DGVM.. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia: Social Adaptation to the Changes of the Terrestrial Ecosystem, with an Emphasis on Water Environments, 2012.03.07-2012.03.09, Kyoto.

Sakai, T., Hiyama, T., Fujiwara, J., Gotovtsev, S. and Gagarin, L. Flood disaster caused by permafrost degradation in the far north of Siberia.. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia: Social Adaptation to the Changes of the Terrestrial Ecosystem, with an Emphasis on Water Environments, 2012.03.07-2012.03.09, Kyoto.

Hiyama, T., Asai, K., Kolesnikov, A., Gagarin, L., Shepelev, V. Residence time estimation of permafrost groundwater at Yakutsk region, eastern Siberia. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia: Social Adaptation to the Changes of the Terrestrial Ecosystem, with an Emphasis on Water Environments", 2012.03.07-2012.03.09, Kyoto.

Aiba, K., Sasai, T. and Yamaguchi, Y. Analysis of water, heat and carbon balances over the Siberia region by using biosphere model BEAMS.. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia: Social Adaptation to the Changes of the Terrestrial Ecosystem, with an Emphasis on Water Environments, 2012.03.07-2012.03.09, Kyoto.

Kleptsova, I., Glagolev, M., Lapshina, E. and Maksyutov, S. Land cover classification of the Great Vasyugan mire for estimation of methane emission.. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia: Social Adaptation to the Changes of the Terrestrial Ecosystem, with an Emphasis on Water Environments, 2012.03.07-2012.03.09, Kyoto.

Yasunari, T., Watanabe, T. and Fujinami, H. Interannual variation of summer hydro-climate in East Asia.. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia: Social Adaptation to the Changes of the Terrestrial Ecosystem, with an Emphasis on Water Environments, 2012.03.07-2012.03.09, Kyoto.

Yamazaki, T. Simulation of soil water and temperature in eastern Siberian taiga forests by a one-dimensional land-surface model.. 1st International Conference on Global Warming and the Human-Nature Dimension in Siberia, 2012.03.07-2012.03.09, Kyoto.

Tei S, Sugimoto A, Yonenobu H, Maximov T. C. Changes in relationship between larch tree growth and climate in eastern Siberia over past 100 years.. 1st International Conference Global Warming and the Human-Nature Dimension in Siberia, 2012.03.07-2012.03.09, Kyoto.

Kotani A, Ohta T, Maximov T. Seasonal variation of linkage between net ecosystem exchange of H2O and CO2 over boreal forest at eastern Siberia. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia: Social Adaptation to the Changes of the Terrestrial Ecosystem, with an Emphasis on Water Environments, 2012.03.07-2012.03.09, Kyoto.

Kanzawa,H. and Harada,Y An analysis of latitudinal distributions of poleward energy transport by the atmosphere and its change using a 32-year reanalysis dataset. . International Workshop on “Impact of Asian Megacity Development on Local to Global Climate Change” (2nd MOST-JST Project Meeting), 2011.12.21-2011.12.22, Suzhou, China.

Yoshida R, Sawada M, Yamazaki T. Fffect of land cover change on regional water/energy/ field in eastern Siberia. . 5th International WS on C/H20/Energy balance and climate over boreal and arctic regions., 2011.11.11-2011.11.12, Wageningen, The Netherlands .

Tatsuzawa, S., Okhlopkov, I.M., Kirillin, E.V., Nikolaev, E.A., Solomonov, N.G. The migration routes of eastern Siberian wild reindeer: especially on the Anabar sub-population in Sakha Republic.. "Challenges of Managing Northern Ungulates – 13th International Arctic Ungulates Conference", August 2011, Yellowknife,Canada.

Okhlopkov, I. M., Solomonov, N.G., Kirillin, E.V.,Tatsuzawa, S., Nikolaev, E. A. Present status of wild and domesticated reindeer in the Sakha Republic (Yakutia).. “Challenges of Managing Northern Ungulates – 13th International Arctic Ungulates Conference" , August 2011, Yellowknife,Canada.

Kirillin,E.V,Okhlopkov,I.M,Tatsuzawa,S,Nikolaev,E.A,Solomonov,N.G. Present status and future objectives of Musk-ox (Ovibos moschatus) re-introduction in Sakha, Russia. . "Challenges of Managing Northern Ungulates – 13th International Arctic Ungulates Conference" , August 2011, Yellowknife, Canada .

Nagayama, Y. Traditional use of fishery and vegetable resources by indigenous people of Kamchatka. The 11th International Scientific Conference "Conservation of Kamchatka's Biodiversity and Coastal Waters", 2010.11.25, Petropavlovsk-Kamchatsky. (in Russian)

Yoshida, R., Sawada, M., Yamazaki, T. Effect of land cover change on regional water/energy field in Eastern Siberia. 5th Annual International Workshop on C/H2O/Energy balance and climate over boreal regions with special emphasis on eastern Eurasia, 2010.11.11-2010.11.13, Wageningen, The Netherlands.

Tei, S., Sugimoto, A., Yonenobu, H. and Maximov, T.C. Reconstruction of the past soil moisture based on delta-13C of larch tree rings for analysis of water and carbon cycle in Eastern Siberian. 5th International Workshop on C/H2O/Energy balance and climate over boreal and arctic regions with special emphasis on eastern Eurasia, 2010.11.11-2010.11.13, Wageningen, The Netherlands.

Hiyama, T. and Asai, K. Residence time estimation for vulnerability assessment of supra-permafrost and intra-permafrost groundwater in central Yakutia. Forum for Young Permafrost Scientists, -The past, present and future of geocryology-, 2010.08.02-2010.08.04, Yakutsk, Russia.

Kim, H.-S., Maksyutov, S., Glagolev, M.V., Machida, T., Patra, P., Sudo, K. and Inoue, G., Evaluation of methane emission over West Siberia. International Conference on Environmental Observations, Modeling and Information Systems (ENVIROMIS-2010), 2010.07.05-2010.07.11, Tomsk, Russia.

Maksyutov, S., Yoshida, Y., Saito, R., Saeki, T., Belikov, D., Oda, T., Watanabe, H. and Yokota T. First year of monitoring the greenhouse gases from space with GOSAT. International Conference on Environmental Observations, Modeling and Information Systems (ENVIROMIS-2010), 2010.07.05-2010.07.11, Tomsk, Russia.

Ohta, T., Kotani, A., Nakai, T. and Maximiv, T.C. The forest damage of long tern influence on soil water content in a Larch forest, Eastern Siberia. The 120th Japan Forestry Society, 2009.03.25-2009.03.28, Kyoto, Japan.

Okumura, M. Siberian winter roads on the frozen river and ponds, as public goods depending on the local environment.. International Symposium on Regional Public Sphere and Environment in Slavic Eurasia and Japan, RIHN and SRC, Hokkaido University, 2009.02.28.

Yamazaki, T., Iijimja, Y. and Ishikawa, M. Long-term simulation of water and energy budget and process studies on recent moistening and thawing of soil in eastern Siberia. IAMAS/IAPSO/IACS Joint Assembly, 2009, Canada.

【Poster Presentation】

Oshima,K., Y. Tachibana and T. Hiyama, Climatological features of atmospheric and terrestrial water cycles in the three great Siberianrivers based on six atmospheric reanalyses and observed river discharges.. AGU Fall meeting 2013, 2013.12.12, San Francisco,USA.

Ayumi Kotani, Takeshi Ohta, Trofim C Maximov Flux-based water use efficiency over two larch forests with different soil and canopy structure at eastern Siberia.. American Geophysical Union fall meeting 2013, 2013.12.10, San Francisco, USA.

Ignatyeva, V. Рroblems of Sustainable Development of Indigenous Peoples of Yakutia in the Context of Climate Change and the Social and Natural Environment.. The All-Russian Scientific Conference on Readings the memory of academician K.Simakov, 2013.11.26-2013.11.28, Magadan.

Ohta T, Kotani A, Iijima Y, Maximov TC, Ito S, Miho Hanamura M, Kononov AV, Maximov AP. Impacts of water and carbon dioxide fluxes on waterlogging in an eastern Siberia larch forest during 1998 - 2011.. 2nd International Conference on "Global Warming and the Human-Nature Dimension in Seberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Boyakova S., Vinokurova L. Climate change consequences in Yakutia: social and economic challenges for rural communities.. 2nd International Conference on "Global Warming and the Human-Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Nakada, A. Reindeer herders and environmental change in the Oimyakon District, Sakha Republic.. 2nd International Conference on "Global Warming and the Human-Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Ignatyeva, V. The Evolution of Climate and Economy: the Prezentation, Opinions and Estimates of Horse Breeders of Yakutia.. 2nd International Сonference on «Global Warming and the Human-Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Boyakova S. Assesment of the impact of climate change on transport infrastructure Yakutia.. 2nd International Conference on "Global Warming and the Human-Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Boyakova S., Maximova T. Folk meteorology of Yakuts: history and modernity.. 2nd International Conference on "Global Warming and the Human-Nature Dimension in Siberia, 2013.10.08-2013.10.11, Yakutsk, Russia.

Sakai, T., Hiyama, T., Fujiwara, J., Gotovtsev, S., Gagarin, L., and Yamaguchi, Y. Permafrost degradation and flood occurrence in the far north of Siberia. Third International Symposium on the Arctic Research (ISAR-3), 2013.01.14-2013.01.17, Tokyo.

Ignatyeva, V. Ethnicity as an ideology of consumerism: Anthropological analysis of everyday life of Sakha. International conference "Ethnic and cultural cooperation in Eurasia: Spatial and historical configuration", 2012.11.25-2012.11.27, Barnaul, Russia.

Sakai, T., Hiyama, T., Fujiwara, J., Gotovtsev, S., Gagarin, L., and Yamaguchi, Y. Flood monitoring in the far north of Siberia using ALOS/PALSAR. The 53rd Autumn Conference of the Remote Sensing Society of Japan, 2012.11.19-2012.11.20, Hiroshima.

Oshima, K. Comparison of atmospheric and terrestrial water budgets in the three great Siberian rivers among atmospheric reanalyses. Meteorological Society of Japan 2012 Autumn Meeting, October 2012, Sapporo.

Kotani, A., Ohta, T. Seasonal variation in characteristic of turbulence transport over forest canopy. Japan Society of Hydrology and water Resources Meeting 2012, 2012.09.26-2012.09.29, Hiroshima.

Hiyama, T., Asai, K., Kolesnikov, A., Gagarin, L. and Shepelev, V. Estimation of residence time of permafrost groundwater in the Yakutsk region, eastern Siberia. 3rd International Conference on Forest and Water in a changing environment, 2012.09.18-2012.09.20, Fukuoka.

Sakai, T., Hiyama, T., Fujiwara, J., Gotovtsev, S., and Gagarin, L. Long-term flood damage by permafrost degradation in Siberia. International Geoscience and Remote Sensing Symposium (IGARSS) 2012, 2012.07.22-2012.07.27, Munich, Germany.

Kotani, A., Ohta, T. Linkage between net ecosystem exchange of H2O and CO2 over boreal forest at eastern Siberia. Japan Geoscience Union (JpGU) Meeting 2012, 2012.05.20-2012.05.25, Makuhari, Chiba.

Sugimoto, A., Ishikawa, M., Kodama, Y., Sasaki, M., Yamazaki, T., Matsuura, Y., Uchida, M., Suzuki, R., Iijima, Y., Saito, K., Park, H., Ohta, T., Hiyama, T., Osawa, A. and Ise, T. Change in Terrestrial Ecosystem of Pan-Arctic and effect on Climate. Japan Geoscience Union (JpGU) Meeting 2012, 2012.05.20-2012.05.25, Makuhari, Chiba.

Oshima, K. Estimation of Net Precipitation over the Three Great Siberian River Basins Using Atmospheric Reanalyses. 4th WCRP International Conference on Reanalyses, May 2012, Washingtong DC.

Sakai, T., Hiyama, T., Fujiwara, J., Gotovtsev, S., and Gagarin, L. Monitoring ground subsidence and springwater by permafrost degradation in Siberia. European Geoscience Union (EGU), 2012.04.22-2012.04.27, Vienna, Austria.

Hayashi, M, Kotani, A., Ohta, T. Comparison of CO2 flux between two sites in eastern Siberian boreal forest. The 123th Japan Forestry Society, 2012.03.26-9999.03.29, Utsunomiya. (in Japanese)

Hanamura, M., Ohta, T., Kotani, A., Ito S., Maximov, T.C.,Kononov, A, Maximov, A. Variability analysis of evapotransipiration in an eastern Siberian larch forest over 12- year (1998-2011). The 123th Japan Forestry Society, 2012.03.26-9999.03.29, Utsunomiya. (in Japanese)

Kirillin, E.V., Okhlopkov, I.M., Tatsuzawa, S., Nikolaev, E.A. Reacclimatization of the muskox in the arctic zone of Yakutia: results and prospects for further research.. 1st International Conference on Global Warming and the Human-Nature Dimension in Siberia, 2012.03.07-2012.03.09, Kyoto.

Nikolaev, E.A., Stepanova, V.V., Innokentiy. M. Okhlopkov, I.M., Tatsuzawa, S., Ikeda, T. Current status of hunting by the indigenous minorities in Yakutia.. 1st International Conference on Global Warming and the Human-Nature Dimension in Siberia, 2012.03.07-2012.03.09, Kyoto.

Kim, H-S., Maksyutov, S., Saeki, T., Belikov, D. and Machida, T. Analysis of Siberian CH4 flux during 1994-2010. . 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia: Social Adaptation to the Changes of the Terrestrial Ecosystem, with an Emphasis on Water Environments, 2012.03.07-2012.03.09, Kyoto.

Hanamura M, Ohta T, Kotani A, Ito S, Maximov TC, Kononov AV, Maximov AP, Variability analysis of evapotranspiration in an eastern Siberian larch forest over a 12-year period (1998-2011). 1st International Conference on, 2012.03.07-2012.03.09, Kyoto.

Ito S, Ohta T, Kotani A, Maximov TC, Kononov AP Interannual variation of the carbon dioxide flux in an eastern Siberian larch forest. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia: Social Adaptation to the Changes of the Terrestrial Ecosystem,with an Emphasis on Water Environments, 2012.03.07-2012.03.09, Kyoto.

Hayashi M, Kotani A, Ohta T, Maximov TC, Kononov AV, Maximov AP, Comparison of CO2 flux between two sites (SpasskayaPad, Elgeeii) in eastern Siberian boreal forest. 1st International Conference on "Global Warming and the Human-Nature Dimension in Siberia: Social Adaptation to the Changes of the Terrestrial Ecosystem, with an Emphasis on Water Environments, 2012.03.07-2012.03.09, Kyoto.

Tei S, Sugimoto A, Yonenobu H, Shingubara R, Takano S, Maximov T. C. Use of satellite-derived surface soil moisture data to compare with estimated soil moisture based on tree-ring delta-13C and methane emission in eastern Siberia.. Workshop ESA Data User Element DUE Permafrost, 2012.02.15-2012.02.17, Potsdam.

Bohn, T.J., Chen, X., Schroeder, R., McDonald, K.C., Podest, E., Glagolev, M., Kim, H.-S., Maksyutov, S., Machida, T.and Lettenmaier, D.P. Assimilation of tower and satellite-based observations for improved estimation of methane fluxes over Northern Eurasia. AGU Fall Meeting 2011, 2011.12.05-2011.12.09, San Francisco, U.S.A.

Kim, H.-S., Maksyuotv, S., Glagolev, M.V., Machida, T., Patra, P. K., Sudo, K. and Inoue, G. Evaluation of methane emissions from West Siberian wetlands based on inverse modeling. NCGG6, 2011.11.02-2011.11.04, Amsterdam, The Netherlands.

Sakai T., Costard, F. and Fedorov, The impact of ice-jam flood of the Lena river.. The 32nd Asian Conference on Remote Sensing, 2011.10.03-2011.10.07, Taipei,Taiwan.

Yoshida, A. Foraging activities of the Siberian tundra Nenets pastoralists and environmental change. The 26th International Abashiri Symposium: Environmental Change and Subsistence of Northern Peoples, 2011.10.01-2011.10.02, Abashiri. (in Japanese)

Ignatyeva, V. Ethnic and demographic development of the Republic of Sakha (Yakutia): Regional features. Solovetsky Forum 2011, 2011.06.01-9999.06.04, Arkhangelsk, Russia.

Kim, H.-S., Maksyuotv, S., Glagolev, M.V., Machida, T., Patra, P. ., Sudo, K. and Inoue, G. Evaluation of methane emissions from West Siberian wetlands based on inverse modeling. JpGU Meeting 2011, 2011.05.22-2011.05.27, Makuhari, Chiba.

Yoshida, R., Sawada, M., Yamazaki, T., Ohta, T., Hiyama, T. and Inoue, G. Influence of land cover change on regional water and energy field in Eastern Siberia. Japan Geoscience Union (JpGU) Meeting 2011, 2011.05.22-2011.05.27, Makuhari, Chiba. (in Japanese)

Yoshida, R., Sawada, M., Yamazaki, T., Kotani, A., Ohta, T., Hiyama, T. and Inoue, G. Roles of Mountain Ranges on Water Field in Eastern Siberia. Japan Geoscience Union (JpGU) Meeting 2011, 2011.05.22-2011.05.27, Makuhari, Chiba.

Tei, S., Sugimoto, A., Yonenobu, H. and Maximov, T.C. Reconstruction of past interannual variations in soil moisture based on delta-13C of larch tree rings in eastern Siberia. Second International Symposium on the Arctic Research (ISAR-2) - Arctic System in a Changing Earth -, 2010.12.07-2010.12.09, Tokyo, Japan.

Sakai, T., Hiyama, T., Fujiwara, J., Gotovtsev, S., Gagarin, L., Takeuchi, W., Yamaguchi, Y. and Inoue, G. Permafrost degradation caused by global warming in the far north of Siberia. Second International Symposium on the Arctic Research (ISAR-2) - Arctic System in a Changing Earth -, 2010.12.07-2010.12.09, Tokyo, Japan. (in Japanese)

Sakai, T,. Hatta, S., Okumura, M., Takeuchi, W., Hiyama, T. and Inoue, G. The special-temporal variation of flood disasters at Lena river using satellite time-series data. 5th International Workshop on C/H2O/Energy balance and climate over boreal and arctic region with special emphasis on eastern Eurasia, 2010.11.11-2010.11.13, Wageningen, The Netherlands.

Kotani, A. and Ohta, T. Comparison of C/H2O/energy fluxes over boreal forest introduction of new measurement site at southern part of Lena basin. The 5th International Workshop on C/H2O/Energy balance and climate over boreal and arctic regions with special emphasis on eastern Eurasia, 2010.11.11-2010.11.13, Wageningen, The Netherlands.

Yoshida, R., Sawada, M., Yamazaki, T., Ohta, T., Hiyama, T. and Inoue, G. Influence of land cover change on regional precipitation amount and heat balance component in eastern Siberia. 2010 Autumn Meeting of Meteorological Society of Japan, 2010.10.27-2010.10.29, Kyoto.

Ignatyeva, V. National-regional grouping in a transformation of the school system of Russia. All-Russian Scientific session of the "New Horizons of the humanities in Russia, 2010.09.23, Yakutsk.

Yamazaki, T. Long-term simulation of soil freezing and snow cover in a taiga forest in eastern Siberia. International Symposium on Snow, Ice and Humanity in a Changing Climate, 2010.06.24, Sapporo.

Kobayashi, N. and Inoue, G. Preliminary study on possibility of application of GOSAT to fire research. Japan Geoscience Union (JpGU) Meeting 2010, 2010.05.23-2010.05.28, Makuhari,Chiba.

Sakai, T., Hatta, S., Okumura, M., Takeuchi, W., Hiyama, T. and Inoue, G. A time-series analysis of flood disaster around Lena river using Landsat TM/ETM+. European Geosciences Union (EGU) General Assembly 2010, 2010.05.02-2010.05.07, Vienna, Austria.

Kim, H.-S., Maksyutov, S., Patra, P., Sudo, K. and Inoue, G., Influence of interannual variations of CH4 emissions and OH on recent atmospheric CH4. European Geosciences Union (EGU) General Assembly 2010,, 2010.05.02-2010.05.07, Vienna, Austria.

Sakai, T., Sasai, T., Kobayashi, N., Hiyama, T., Yamamoto, K., Yamaguchi, Y. and Inoue, G. Flood detection and monitoring around Lena river in Siberia with SPOT-VGT. AGU Fall Meeting, 2009.12.14-2009.12.18, San Francisco, USA.

Kim, H.-S., Maksyutov, S., Saeki, T. and Inoue, G. Methane Inverse Modeling using NIES Transport Model: Optimization of the seasonal flux based on observation data and a prior flux. 4th Japan-China-Korea Joint Conference on Meteorology, 2009.12.14-2009.12.18, Tsukuba.

Kotani, A. and Ohta, T. Detecting a difference in phenological status using scalar dissimilarity observed above the forest canopy. Asiaflux workshop, October 2009, Sapporo, Japan.

Kim, H.-S., Patra, P., Maksyutov, S., Sudo, K. and Inoue, G. Methane inverse modeling using NIES transport model: The impact of data choices on estimates. 8th International Carbon Dioxide Conference, 2009.09.13-2009.09.19, Jena, Germany.

Saeki, T., Maksyutov, S. and Kim, H.-S. High-resolution simulation of atmospheric methane using a global transport model. 5th NCGG5, June 2009, Wageningen, The Netherlands.

Hiyama, T., Asai, K., Gagarin, L. and Kolesnikov, A. Age estimation of supra-permafrost and intra-permafrost groundwater in Yakutsk region, Eastern Siberia. Third International Symposium on the Arctic Research (ISAR-3), 2013.01.14-2013.01.17, Tokyo.

Oshima, K., Iijima, Y., Hori, M.E., Inoue, J. and Hiyama, T. Changes in the Lena river discharge and net precipitation over the basin during 2005-2008. Third International Symposium on the Arctic Research (ISAR-3), 2013.01.14-2013.01.17, Tokyo.

【Invited Lecture / Honorary Lecture / Panelist】

Hiyama, T. Global Warming and the Human-Nature Dimension in Siberia - Social Adaptation to the Changes of the Terrestrial Ecosystem, with an Emphasis on Water Environments -. Reflections on Russian "Center-Periphery" Relationships, Institute of Russia-CIS Studies, Korea University, Humanities Korea (HK) Project, "Studies on Russia: Time and Space of Risks and Opportunities", 2011.05.28, Conference Room 6, Inchon Memorial Hall, Korea University.