Climate trends and behaviour of drought indices based on precipitation and evapotranspiration in Portugal

Distinction between drought and aridity is crucial to understand water scarcity processes. Drought indices are used for drought identification and drought severity characterisation. The Standardised Precipitation Index (SPI) and the Palmer Drought Severity Index (PDSI) are the most known drought ind...

Full description

Bibliographic Details
Main Authors: A. A. Paulo, R. D. Rosa, L. S. Pereira
Format: Article
Language:English
Published: Copernicus Publications 2012-05-01
Series:Natural Hazards and Earth System Sciences
Online Access:http://www.nat-hazards-earth-syst-sci.net/12/1481/2012/nhess-12-1481-2012.pdf