DOAS: a drought online analysis system with constraint databases

Authors:
Shasha Wu;Peter Revesz
Affiliations:
Univ. of Nebraska-Lincoln, Lincoln, NE;Univ. of Nebraska-Lincoln, Lincoln, NE
Venue:
dg.o '04 Proceedings of the 2004 annual national conference on Digital government research
Year:
2004

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Abstract

The Standardized Precipitation Index (SPI) [5] is a common and simple measure of the intensity and duration of drought at certain measured point locations. We interpolate this original point-based SPI data using a shape function-based interpolation [3], which is the most accurate among a number of alternatives [2], and represent the result in a constraint database [1, 6].