Feedbacks of Vegetation on Summertime Climate Variability over the North American Grasslands: 1. Statistical Analysis
نویسندگان
چکیده
Weile Wang Department of Geography and Environment, Boston University, Boston, MA E-mail: [email protected] Bruce T. Anderson Department of Geography and Environment, Boston University, Boston, MA E-mail: [email protected] Nathan Phillips Department of Geography and Environment, Boston University, Boston, MA E-mail: [email protected] Robert K. Kaufmann Department of Geography and Environment, Boston University, Boston, MA E-mail: [email protected] Christopher Potter Ecosystem Science and Technology Branch, NASA Ames Research Center, Moffett Field, CA E-mail: [email protected] Ranga B. Myneni Department of Geography and Environment, Boston University, Boston, MA E-mail: [email protected]
منابع مشابه
Feedbacks of Vegetation on Summertime Climate Variability over the North American Grasslands. Part I: Statistical Analysis
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 (NDVI) anomalies early in the growing season have a statistically measurable effect on precipitation and surface temperature later in summer. In particular, higher means and/or...
متن کاملFeedbacks of Vegetation on Summertime Climate Variability over the North American Grasslands. Part II: A Coupled Stochastic Model
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 and has components to describe the water-related vegetation variability, the long-term balance of soil moisture, and the local soil–moisture– precipitation feedbacks. Analys...
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