Visualizing Drought
The impacts of drought depend on time-scale. On short time-scales, drought means dry soil. On long time-scales, it means dry rivers and empty reservoirs. A region may simultaneously experience dry conditions on one time-scale and wet conditions on another e.g. wet soil but low streamflow or visa versa.
Standardized Precipitation Index (SPI) is a widely used [...]
March 6, 2010
Tags: R, time-series, water stress Posted in: Uncategorized 
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Flux Towers: Part II
Flux tower eddy covariance instruments measure CO2 flux between an ecosystem and the atmosphere. Observed CO2 fluxes (also called NEE, Net Ecosystem Exchange) can be correlated with locally measured solar intensity, temperature, humidity etc. With enough data, a detailed picture of the local response of the ecosystem to environmental variables to be built up. Flux [...]
October 12, 2009
Tags: ecosystem model, eddy covariance, Terrestrial Carbon, water stress Posted in: Carbon, Climate, Forests, ecosystem model No Comments
