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RISFeedbacks 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 ...
The Relation between the North Atlantic Oscillation and SSTs in the North Atlantic Basin
Publisher: American Meteorological Society
Abstract: The authors use the notion of Granger causality to investigate the relationship between the North Atlantic Oscillation (NAO) index and the sea surface temperatures (SSTs) over the Northern Hemisphere. The Granger causality ...
Coupling of the Common Land Model to the NCAR Community Climate Model
Publisher: American Meteorological Society
Abstract: The Common Land Model (CLM), which results from a 3-yr joint effort among seven land modeling groups, has been coupled with the National Center for Atmospheric Research (NCAR) Community Climate Model (CCM3). Two 15-yr ...
Why Is Remote Sensing of Amazon Forest Greenness So Challenging?
Publisher: American Meteorological Society
Abstract: he prevalence of clouds and aerosols and their impact on satellite-measured greenness levels of forests in southern and central Amazonia are explored in this article using 10 years of NASA Moderate Resolution Imaging ...
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 ...
Physical Climate Response to a Reduction of Anthropogenic Climate Forcing
Publisher: American Meteorological Society
Abstract: Recent research indicates that the warming of the climate system resulting from increased greenhouse gas (GHG) emissions over the next century will persist for many centuries after the cessation of these emissions, principally ...
Evaluation of the Utility of Satellite-Based Vegetation Leaf Area Index Data for Climate Simulations
Publisher: American Meteorological Society
Abstract: In this study the utility of satellite-based leaf area index (LAI) data in improving the simulation of near-surface climate with the NCAR Community Climate Model, version 3 (CCM3), GCM is evaluated. The use of mean LAI ...
Intraseasonal Interactions between Temperature and Vegetation over the Boreal Forests
Publisher: American Meteorological Society
Abstract: This paper uses statistical and analytical techniques to investigate intraseasonal interactions between temperature and vegetation [surrogated by the normalized difference vegetation index (NDVI)] over the boreal forests. ...
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 ...
Impact of Earth Greening on the Terrestrial Water Cycle
Publisher: American Meteorological Society
Abstract: AbstractLeaf area index (LAI) is increasing throughout the globe, implying Earth greening. Global modeling studies support this contention, yet satellite observations and model simulations have never been directly compared. ...