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RISChanges in Vegetation Cover of the Arctic National Wildlife Refuge Estimated from MODIS Greenness Trends, 2000–18
Publisher: American Meteorological Society
Abstract: AbstractTrends and transitions in the growing-season normalized difference vegetation index (NDVI) from the Moderate Resolution Imaging Spectroradiometer (MODIS) satellite sensor at 250-m resolution were analyzed for the ...
Regional Modeling of Ammonia Emissions from Native Soil Sources in California
Publisher: American Meteorological Society
Abstract: The development of a new emissions inventory of ammonia volatilization from native soil sources (excluding direct emissions from fertilizer application sources) for the state of California is discussed. Because a comprehensive ...
Terrestrial Vegetation Dynamics and Global Climate Controls in North America: 2001–05
Publisher: American Meteorological Society
Abstract: Monthly composite data from the Moderate Resolution Imaging Spectroradiometer (MODIS) satellite sensor was used to reconstruct vegetation dynamics in response to climate patterns over the period 2001?05 for North America. ...
Terrestrial Carbon Sinks for the United States Predicted from MODIS Satellite Data and Ecosystem Modeling
Publisher: American Meteorological Society
Abstract: A simulation model based on satellite observations of monthly vegetation cover from the Moderate Resolution Imaging Spectroradiometer (MODIS) was used to estimate monthly carbon fluxes in terrestrial ecosystems of the ...
Understanding Controls on Historical River Discharge in the World’s Largest Drainage Basins
Publisher: American Meteorological Society
Abstract: Long-term (20 yr) river discharge records from 30 of the world?s largest river basins have been used to characterize surface hydrologic flows in relation to net precipitation inputs, ocean climate teleconnections, and human ...
Feedbacks of Vegetation on Summertime Climate Variability over the North American Grasslands. Part I: Statistical Analysis
Publisher: American Meteorological Society
Abstract: Feedbacks of vegetation on summertime climate variability over the North American Grasslands are analyzed using the statistical technique of Granger causality. Results indicate that normalized difference vegetation index ...
Methane Emissions from Natural Wetlands in the United States: Satellite-Derived Estimation Based on Ecosystem Carbon Cycling
Publisher: American Meteorological Society
Abstract: Wetlands are an important natural source of methane to the atmosphere. The amounts of methane emitted from inundated ecosystems in the United States can vary greatly from area to area. Seasonal temperature, water table ...
Modeling Terrestrial Biogenic Sources of Oxygenated Organic Emissions
Publisher: American Meteorological Society
Abstract: In recent years, oxygenated volatile organic chemicals (OVOCs) like acetone have been recognized as important atmospheric constituents due to their ability to sequester reactive nitrogen in the form peroxyacetyl nitrate ...
Feedbacks of Vegetation on Summertime Climate Variability over the North American Grasslands. Part II: A Coupled Stochastic Model
Publisher: American Meteorological Society
Abstract: A coupled linear model is derived to describe interactions between anomalous precipitation and vegetation over the North American Grasslands. The model is based on biohydrological characteristics in the semiarid environment ...