The Numerical Terradynamic Simulation Group (NTSG) is a research center in the University of Montana's W.A. Franke College of Forestry & Conservation pioneering new approaches for landscape ecological and hydrological studies. A major focus of our research is to understand how vegetation responds to climate variability and influences the water, carbon and energy cycles. NTSG conducts research over a broad range of spatial scales, emphasizing emerging technologies in satellite remote sensing, computational modeling and biophysical theory. We are a leader in the development and application of satellite remote sensing for global environmental assessment and monitoring. NTSG is a NASA Earth Science Information Partner (ESIP), developer and repository for a variety of global land data products from satellite Earth missions, including MODIS (MOD16/17) vegetation productivity and evapotranspiration, AMSR land parameters, and SMAP (L4C) carbon flux products.


Submissions from 2012


Observations and assessment of forest carbon dynamics following disturbance in North America, Scott J. Goetz, B. Bond-Lamberty, Beverly E. Law, J. A. Hicke, C. Huang, R. A. Houghton, S. G. McNulty, T. O'Halloran, M. E. Harmon, A. J.H. Meddens, E. M. Pfeifer, David J. Mildrexler, and Eric Kasischke

Reconciling satellite with ground data to estimate forest productivity at national scales, Hubert Hasenauer, Richard Petritsch, Maosheng Zhao, Céline Boisvenue, and Steven W. Running

North American Carbon Program (NACP) regional interim synthesis: Terrestrial biospheric model intercomparison, D. N. Huntzinger, W. M. Post, Y. Wei, A. M. Michalak, T. O. West, A. R. Jacobson, I. T. Baker, J. M. Chen, K. J. Davis, D. J. Hayes, Forrest M. Hoffman, A. K. Jain, S. Liu, A. D. McGuire, Ronald P. Neilson, Chris Potter, B. Poulter, David Price, B. M. Raczka, Hanqin Tian, P. Thornton, Enrico Tomelleri, Nicolas Viovy, Jingfeng Xiao, W. Yuan, N. Zeng, M. Zhao, and R. Cook

Satellite passive microwave detection of North America start of season, Matthew O. Jones, John S. Kimball, Lucas A. Jones, and Kyle C. McDonald

Terrestrial biosphere model performance for inter-annual variability of land-atmosphere CO2 exchange, T. F. Keenan, Ian Baker, Alan Barr, Philippe Ciais, Ken Davis, Michael C. Dietze, Danillo Dragoni, Christopher M. Gough, Robert Grant, D. Y. Hollinger, Koen Hufkens, B. Poulter, Harry McCaughey, B. M. Raczka, Youngryel Ryu, Kevin Schaefer, Hanqin Tian, Hans Verbeeck, Maosheng Zhao, and Andrew D. Richardson


Validating a Satellite Microwave Remote Sensing Based Global Record of Daily Landscape Freeze-Thaw Dynamics, John S. Kimball, Youngwook Kim, and Kyle C. McDonald


The effect of winter frozen season changes on Northern Hemisphere vegetation canopy growth determined from satellite microwave and optical remote sensing, Youngwook Kim, John S. Kimball, Ke Zhang, and Kamel Didan

Satellite detection of increasing Northern Hemisphere non-frozen seasons from 1979 to 2008: Implications for regional vegetation growth, Youngwook Kim, John S. Kimball, K. Zhang, and Kyle C. McDonald

Impacts of climate change on August stream discharge in the Central-Rocky Mountains, Jason Christopher Leppi, Thomas H. DeLuca, Solomon W. Harrar, and Steven W. Running


Remote Sensing Evaluation of CLM4 GPP for the Period 2000-2009*, Jiafu Mao, Peter Edmond Thornton, and Xiaoying Shi


An assessment of the carbon balance of arctic tundra: comparisons among observations, process models, and atmospheric inversions, A. D. McGuire, T. R. Christensen, D. J. Hayes, A. Heroult, E. Euskirchen, Y. Yi, John S. Kimball, C. Koven, P. Lafleur, P. A. Miller, Walt Oechel, P. Peylin, and M. Williams

Remote Sensing and Modeling of Global Evapotranspiration, Qiaozhen Mu, Maosheng Zhao, and Steven W. Running

A Measurable Planetary Boundary for the Biosphere, Steven W. Running

Bioenergy Potential of the United States Constrained by Satellite Observations of Existing Productivity, W. Kolby Smith, Cory C. Cleveland, Sasha C. Reed, Norman L. Miller, and Steven W. Running

Global Bioenergy Capacity as Constrained by Observed Biospheric Productivity Rates, W. Kolby Smith, Maosheng Zhao, and Steven W. Running

A Global System for Monitoring Ecosystem Service Change, Heather Tallis, H. A. Mooney, Sandy Andelman, Patricia Balvanera, W. Cramer, Daniel Karp, Stephen Polasky, Belinda Reyers, Taylor Ricketts, Steven W. Running, Kirsten Thonicke, Britta Tietjen, and Ariane Walz


Increasing subsurface water storage in discontinuous permafrost areas of the Lena River basin, Eurasia, detected from GRACE, I. Velicogna, J. Tong, T. Zhang, and John S. Kimball

Satellite Microwave remote sensing of contrasting surface water inundation changes within the Arctic-Boreal Region, J. D. Watts, John S. Kimball, Lucas A. Jones, Ronny Schroeder, and Kyle C. McDonald

A Riverscape Analysis Tool Developed to Assist Wild Salmon Conservation Across the North Pacific Rim, Diane C. Whited, John S. Kimball, J. Lucotch, Niels Maumenee, Huan Wu, Samantha D. Chilcote, and Jack A. Stanford


Projected Climate Change Impacts on the Hydrology and Temperature of Pacific Northwest Rivers, Huan Wu, John S. Kimball, Marketa M. Elsner, Nate Mantua, Robert F. Adler, and Jack Arthur Stanford


A new global river network database for macroscale hydrologic modeling, Huan Wu, John S. Kimball, Hongyi Li, Maoyi Huang, L. Ruby Leung, and Robert F. Adler

Submissions from 2011


A simulation of probabilistic wildfire risk components for the continental United States, Mark A. Finney, Charles W. McHugh, Isaac C. Grenfell, Karin Lynn Riley, and Karen Short

Scoping Completed for an Experiment to Assess Vulnerability for Arctic and Boreal Ecosystems, Scott J. Goetz, John S. Kimball, Michelle Mack, and Eric Kasischke


The use of airbone laser scanning to develop a pixel-based stratification for a verified carbon offset project, Jordan Seth Golinkoff, Mark Hanus, and Jennifer Carah

Satellite passive microwave remote sensing for monitoring global land surface phenology, Matthew O. Jones, Lucas A. Jones, John S. Kimball, and Kyle C. McDonald

Developing a Global Data Record of Daily Landscape Freeze/Thaw Status Using Satellite Passive Microwave Remote Sensing, Youngwook Kim, John S. Kimball, Kyle C. McDonald, and Joseph M. Glassy


Satellite detection of Northern Hemisphere Non-Frozen season changes and associated impacts to vegetation growing seasons, Youngwook Kim, John S. Kimball, Ke Zhang, and Kyle C. McDonald


30-year Northern Hemisphere freeze/thaw seasonal trends and associated impacts to vegetation growing seasons and carbon exchange, Youngwook Kim, John S. Kimball, K. Zhang, and Kyle C. McDonald

Direct impacts on local climate of sugar-cane expansion in Brazil, Scott R. Loarie, David B. Lobell, Gregory P. Asner, Qiaozhen Mu, and C. B. Field


Recent rates of forest harvest and conversion in North America, Jeffrey G. Masek, Warren B. Cohen, Donald Leckie, Michael A. Wulder, Rodrigo Vargas, Ben de Jong, S. P. Healey, Beverly Law, Richard Birdsey, R. A. Houghton, David J. Mildrexler, Samuel Goward, and W. Brad Smith


A global comparison between station air temperatures and MODIS land surface temperatures reveals the cooling role of forests, David J. Mildrexler, Maosheng Zhao, and Steven W. Running


Satellite Finds Highest Land Skin Temperatures on Earth, David J. Mildrexler, Maosheng Zhao, and Steven W. Running

Evolution of hydrological and carbon cycles under a changing climate, Qiaozhen Mu, Maosheng Zhao, and Steven W. Running

Improvements to a MODIS Global Terrestrial Evapotranspiration Algorithm, Qiaozhen Mu, Maosheng Zhao, and Steven W. Running


Upscaling key ecosystem functions across the conterminous United States by a water-centric ecosystem model, G. Sun, Peter Caldwell, Asko Noormets, S. G. McNulty, Erika Cohen, Jennifer Moore Myers, Jean-Christophe Domec, Emrys Treasure, Qiaozhen Mu, Jingfeng Xiao, Ranjeet John, and Jiquan Chen


China's terrestrial carbon balance: Contributions from multiple global change factors, Hanqin Tian, Jerry M. Melillo, Chaoqun Lu, David W. Kicklighter, Mingliang Liu, Wei Ren, Xiaofeng Xu, Guangsheng Chen, Chi Zhang, Shufen Pan, Jiyuan Liu, and Steven W. Running


Challenges of a Sustained Climate Observing System, Kevin E. Trenberth, Richard A. Anthes, Alan Belward, Otis Brown, Ted Habermann, Thomas R. Karl, Steven W. Running, Barbara Ryan, Michael Tanner, and Bruce Wielicki

Predicting satellite-derived patterns of large-scale disturbances in forests of the Pacific Northwest Region in response to recent climatic variation, R. H. Waring, N. C. Coops, and Steven W. Running

Estimation of Juvenile Salmon Habitat in Pacific Rim Rivers Using Multiscalar Remote Sensing and Geospatial Analysis, Diane C. Whited, John S. Kimball, M. S. Lorang, and Jack A. Stanford


Automated Upscaling of River Networks for Macroscale Hydrological Modeling, Huan Wu, John S. Kimball, Nate Mantua, and Jack Arthur Stanford


Evaluation of MERRA Land Surface Estimates in Preparation for the Soil Moisture Active Passive Mission, Yonghong Yi, John S. Kimball, Lucas A. Jones, Rolf H. Reichle, and Kyle C. McDonald

An operational method to estimate evapotranspiration using MODIS data during winter wheat growing season, Yonghong Yi and Dawen Yang

Changing freeze-thaw seasons in northern high latitudes and associated influences on evapotranspiration, Ke Zhang, John S. Kimball, Youngwook Kim, and Kyle C. McDonald


Underestimated effects of low temperature during early growing season on carbon sequestration of a subtropical coniferous plantation, W.-J. Zhang, H.-M. Wang, F.-T. Yang, Yonghong Yi, X.-F. Wen, X.-M. Sun, G.-R. Yu, Y.-D. Wang, and J.-C. Ning

Response to Comments on "Drought-Induced Reduction in Global Terrestrial Net Primary Production from 2000 Through 2009", Maosheng Zhao and Steven W. Running

MODIS-Derived Terrestrial Primary Production, Maosheng Zhao, Steven W. Running, Faith Ann Heinsch, and Ramakrishna R. Nemani

Submissions from 2010

A global overview of drought and heat-induced tree mortality reveals emerging climate change risks for forests, Craig D. Allen, Alison K. Macalady, Haroun Chenchouni, D. Bachelet, Nate McDowell, Michel Vennetier, Thomas Kitzberger, Andreas Rigling, David D. Breshears, E. H. Hogg, Patrick Gonzalez, Rod Fensham, Zhen Zhang, Jorge Castro, Natalia Demidova, Jong-Hwan Lim, Gillian Allard, Steven W. Running, Akkin Semerci, and Neil Cobb


Simulations show decreasing carbon stocks and potential for carbon emissions in Rocky Mountain forests over the next century, Céline Boisvenue and Steven W. Running

Development and optimization of an Agro-BGC ecosystem model for C4 perennial grasses, Alan V. Di Vittorio, Ryan S. Anderson, Joseph D. White, Norman L. Miller, and Steven W. Running

The Soil Moisture Active Passive (SMAP) Mission, Dara Entekhabi, Eni G. Njoku, Peggy E. O'Neill, Kent H. Kellogg, Wade Crow, Wendy N. Edelstein, Jared K. Entin, Shawn D. Goodman, Thomas J. Jackson, Joel Johnson, John S. Kimball, Jeffrey R. Piepmeier, Randy Koster, Neil Martin, Kyle C. McDonald, M. Moghaddam, Susan Moran, Rolf H. Reichle, J. C. Shi, Michael Spencer, Samuel W. Thurman, Leung Tsang, and Jakob van Zyl