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July 20, 2010
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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 One Comment
