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 2004

Global Land Data Sets for Next-Generation Biospheric Monitoring, Steven W. Running

A Continuous Satellite-Derived Measure of Global Terrestrial Primary Production, Steven W. Running, Ramakrishna R. Nemani, Faith Ann Heinsch, Maosheng Zhao, Matthew Clark Reeves, and Hirofumi Hashimoto

Integrating remote sensing and ecosystem process models for landscape- to regional-scale analysis of the carbon cycle, David Turner, Scott V. Ollinger, and John S. Kimball

Submissions from 2003

Comparisons of land cover and LAI estimates derived from ETM+ and MODIS for four sites in North America: a quality assessment of 2000/2001 provisional MODIS products, Warren B. Cohen, Thomas K. Maiersperger, Zhiqiang Yang, Stith T. Gower, David Turner, William D. Ritts, Mercedes Berterretche, and Steven W. Running

Effects of precipitation and soil water potential on drought deciduous phenology in the Kalahari, William M. Jolly and Steven W. Running

Topographic and climatic controls on soil respiration in six temperate mixed-hardwood forest slopes, Korea, Sinkyu Kang, Sueyoung Doh, Dongsun Lee, Dowon Lee, Virginia L. Jin, and John S. Kimball

A regional phenology model for detecting onset of greenness in temperate mixed forests, Korea: an application of MODIS leaf area index, Sinkyu Kang, Steven W. Running, Jong-Hwan Lim, Maosheng Zhao, Chan-Ryul Park, and Rachel Andrea Loehman

Assessing the environmental impacts of human settlements using satellite data, Cristina Milesi, Christopher D. Elvidge, Ramakrishna R. Nemani, and Steven W. Running

Assessing the impact of urban land development on net primary productivity in the Southeastern United States, Cristina Milesi, Christopher D. Elvidge, Ramakrishna R. Nemani, and Steven W. Running

Climate-Driven Increases in Global Terrestrial Net Primary Production from 1982 to 1999, Ramakrishna R. Nemani, Charles D. Keeling, Hirofumi Hashimoto, William M. Jolly, Steve C. Piper, Compton J. Tucker, Ranga B. Myneni, and Steven W. Running


Biospheric Monitoring and Ecological Forecasting, Ramakrishna R. Nemani, Michael A. White, Lars Lowell Pierce, Petr Votava, Joseph C. Coughlan, and Steven W. Running

Development of an Evapotranspiration Index from Aqua/MODIS for monitoring surface moisture status., Kenlo Nishida, Ramakrishna R. Nemani, Joseph M. Glassy, and Steven W. Running


An Operational Remote Sensing Algorithm of Land Surface Evaporation, Kenlo Nishida, Ramakrishna R. Nemani, Steven W. Running, and Joseph M. Glassy


Scaling Gross Primary Production (GPP) over boreal and deciduous forest landscapes in support of MODIS GPP product validation, David Turner, William D. Ritts, Warren B. Cohen, Stith T. Gower, Maosheng Zhao, Steven W. Running, Steve Wofsy, S. P. Urbanski, Allison L. Dunn, and J. W. Munger

Submissions from 2002

Global products of vegetation leaf area and fraction absorbed PAR from year one of MODIS data, Ranga B. Myneni, S. Hoffman, Yuri Knyazikhin, J. Privette, Joseph M. Glassy, Yuhong Tian, Y. Wang, X. Song, Y. Zhang, G. R. Smith, A. Lotsch, M. Friedl, J. T. Morisette, Petr Votava, Ramakrishna R. Nemani, and Steven W. Running

Recent trends in hydrologic balance have enhanced the terrestrial carbon sink in the United States, Ramakrishna R. Nemani, Michael White, Peter Edmond Thornton, Kenlo Nishida, Swarna Reddy, Jennifer Jenkins, and Steven W. Running

The Influence of Land-use Change and Landscape Dynamics on the Climate System: Relevance to Climate-change Policy Beyond the Radiative Effect of Greenhouse Gases, Roger A. Pielke, Gregg Marland, Richard A. Betts, Thomas N. Chase, Joseph L. Eastman, John O. Niles, Dev Niyogi, and Steven W. Running

Three-dimensional mapping of geomorphic controls on flood-plain hydrology and connectivity from aerial photos, Geoffrey C. Poole, Jack A. Stanford, C. A. Frissell, and Steven W. Running


MODIS Vegetation Workshop Report, Steven W. Running

New Satellite Technologies Enhance Study of Terrestrial Biosphere, Steven W. Running

Carbon Sequestration Studied in Western U.S. Mountains, David S. Schimel, T. G. F. Kittel, Steven W. Running, Russell Monson, Andrew Turnipseed, and Dean Anderson

Fuzzy Logic Merger of Spectral and Ecological Information for Improved Montane Forest Mapping, Joseph D. White, Steven W. Running, Kevin C. Ryan, and Carl C. Key

Submissions from 2001


FLUXNET: A New Tool to Study the Temporal and Spatial Variability of Ecosystem-Scale Carbon Dioxide, Water Vapor, and Energy Flux Densities, Dennis Baldocchi, Eva Falge, Lianhong Gu, Richard Olson, D. Y. Hollinger, Steven W. Running, Peter Anthoni, Ch. Bernhofer, Kenneth Davis, Robert Evans, Jose Fuentes, Allen Goldstein, Gabriel Katul, Beverly Law, Xuhui Lee, Yadvinder Malhi, Tilden Meyers, William Munger, Walt Oechel, K. T. Paw U, Kim Pilegaard, H. P. Schmid, Riccardo Valentini, Shashi Verma, Timo Vesala, Kell Wilson, and Steve Wofsy


Relative climatic effects of landcover change and elevated carbon dioxide combined with aerosols: A comparison of model results and observations, Thomas N. Chase, Roger A. Pielke, T. G. F. Kittel, M. Zhao, A. Pitman, Steven W. Running, and Ramakrishna R. Nemani

Comparisons of predictions of net primary production and seasonal patterns in water use derived with two forest growth models in Southwestern Oregon, N. C. Coops, R. H. Waring, S. R. Brown, and Steven W. Running


Water in a Changing World, Robert B. Jackson, Stephen R. Carpenter, Clifford N. Dahm, Diane M. McKnight, Robert J. Naiman, Sandra L. Postel, and Steven W. Running

Application of the NASA Scatterometer (NSCAT) for determining the Daily Frozen and Nonfrozen Landscape of Alaska, John S. Kimball, K. C. McDonald, Alisa Renae Keyser, S. Frolking, and Steven W. Running


Asymmetric warming over coastal California and its impact on the premium wine industry, Ramakrishna R. Nemani, Michael A. White, Daniel R. Cayan, Gregory V. Jones, Steven W. Running, Joseph C. Coughlan, and David L. Peterson


Mapping Weekly Rangeland Vegetation Productivity Using MODIS Algorithms, Matthew Clark Reeves, Jerome C. Winslow, and Steven W. Running


Identification of Optimal Satellite Compositing Length Using GLOBE Budburst Measurements, Michael White and Steven W. Running

Submissions from 2000

Carbon Metabolism of the Terrestrial Biosphere: A Multitechnique Approach for Improved Understanding, J. G. Canadell, H. A. Mooney, Dennis Baldocchi, J. A. Berry, J. R. Ehleringer, C. B. Field, Stith T. Gower, D. Y. Hollinger, J. E. Hunt, R. B. Jackson, Steven W. Running, G. R. Shaver, W. Steffen, S. E. Trumbore, R. Valentini, and B. Y. Bond

Arctic and boreal ecosystems of western North America as components of the climate system, F. S. Chapin III, A. D. McGuire, J. Randerson, Roger A. Pielke, Dennis Baldocchi, S. E. Hobbie, N. Roulet, W. Eugster, E. Kasischke, E. B. Rastetter, S. A. Zimov, and Steven W. Running

Simulated impacts of historical land cover changes on global climate in northern winter, Thomas N. Chase, Roger A. Pielke, T. G. F. Kittel, Ramakrishna R. Nemani, and Steven W. Running

Investigating the Balance Between Timber Harvest and Productivity of Global Coniferous Forests Under Global Change, Galina Churkina

Simulating the effects of climate change on the carbon balance of North American high-latitude forests, Alisa Renae Keyser, John S. Kimball, Ramakrishna R. Nemani, and Steven W. Running

Regional assessment of boreal forest productivity using an ecological process model and remote sensing parameter maps, John S. Kimball, Alisa Renae Keyser, Steven W. Running, and S. S. Saatchi


Predicting Vintage Quantity and Quality in Coastal California Using Pacific Sea Surface Temperatures, Ramakrishna R. Nemani, Michael A. White, Daniel R. Cayan, Gregory V. Jones, and Steven W. Running


Why the earth observing system matters to all of us, Steven W. Running

The Earth Observing System and Forest Management, Steven W. Running, LLoyd Queen, and Michele Thornton

Global Terrestrial Gross and Net Primary Productivity from the Earth Observing System, Steven W. Running, Peter Edmond Thornton, Ramakrishna R. Nemani, and Joseph Marion Glassy

Contribution of Increasing CO2 and Climate to Carbon Storage by Ecosystems in the United States, David S. Schimel, Jerry M. Melillo, Hanqin Tian, A. D. McGuire, David W. Kicklighter, T. G. F. Kittel, N. A. Rosenbloom, Steven W. Running, Peter Edmond Thornton, Dennis S. Ojima, William J. Parton, Robin Kelly, Martin Sykes, Ronald P. Neilson, and Brian Rizzo

Prototyping of MODIS LAI and FPAR Algorithm with LASUR and LANDSAT Data, Yuhong Tian, Yuri Knyazikhin, Ranga B. Myneni, Joseph Marion Glassy, Gerard Dedieu, and Steven W. Running

Measuring Fractional Cover and Leaf Area Index in Arid Ecosystems: Digital Camera, Radiation Transmittance, and Laser Altimetry Methods, Michael A. White, Gregory P. Asner, Ramakrishna R. Nemani, J. Privette, and Steven W. Running

Young Students, Satellites Aid Understanding of Climate-Biosphere Link, Michael A. White, Mark D. Schwartz, and Steven W. Running


Parameterization and Sensitivity Analysis of the BIOME-BGC Terrestrial Ecosystem model: Net Primary Production Controls, Michael A. White, Peter Edmond Thornton, Steven W. Running, and Ramakrishna R. Nemani

Submissions from 1999

Comparing global models of terrestrial net primary productivity (NPP): the importance of water availability, Galina Churkina, Steven W. Running, and A. L. Schloss


Using the space-borne NASA scatterometer (NSCAT) to determine the frozen and thawed seasons, S. Frolking, Kyle C. McDonald, John S. Kimball, J. B. Way, Reiner Zimmermann, and Steven W. Running


Climate variations and tree growth between 1961 and 1995 in Austria, Hubert Hasenauer, Ramakrishna R. Nemani, Klemens Schadauer, and Steven W. Running

Forest growth response to change climate between 1961 and 1990 in Austria, Hubert Hasenauer, Ramakrishna R. Nemani, Klemens Schadauer, and Steven W. Running


Sensitivity of boreal forest regional water flux and net primary production simulations to sub-grid-scale land cover complexity, John S. Kimball, Steven W. Running, and S. S. Saatchi