Description Usage Arguments Details Value Examples
This function searches for EDDI data on a specific date, returning a
Raster*
object.
1 |
date |
An object of class Date or a character string formatted as
are to be acquired. To specify a time interval or date range, date can be
a vector of class Date such as produced by |
timescale |
A string that specifies the timescale for EDDI, e.g.,
"1 week", "12 month". The |
dir |
Directory to for downloaded EDDI data. By default this will be a temporary directory. This should be a file path specified as a string. |
overwrite |
Boolean to indicate whether to overwrite EDDI data that
already exist locally in |
The Evaporative Demand Drought Index is available for each day from 1980 to present, usually with a ~5 day lag to the current date. It is available at multiple timescales, including the 1 to 12 week and 1 to 12 months scales. For more information see https://www.esrl.noaa.gov/psd/eddi/
A Raster* object containing EDDI data. Each layer in this object corresponds to data for one date.
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