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Regional Drought Assessment Based on the Reconnaissance Drought Index (RDI)

Author

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  • G. Tsakiris
  • D. Pangalou
  • H. Vangelis

Abstract

Regional drought assessment is conventionally based on drought indices for the identification of drought intensity, duration and areal extent. In this study, a new index, the Reconnaissance Drought Index (RDI) is proposed together with the well known Standardized Precipitation Index (SPI) and the method of deciles. The new index exhibits significant advantages over the other indices by including apart from precipitation, an additional meteorological parameter, the potential evapotranspiration. The drought assessment is achieved using the above indices in two river basins, namely Mornos and Nestos basins in Greece. It is concluded that although the RDI generally responds in a similar fashion to the SPI (and to a lesser extent to the deciles), it is more sensitive and suitable in cases of a changing environment. Copyright Springer Science+Business Media, Inc. 2007

Suggested Citation

  • G. Tsakiris & D. Pangalou & H. Vangelis, 2007. "Regional Drought Assessment Based on the Reconnaissance Drought Index (RDI)," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 21(5), pages 821-833, May.
    • Handle: RePEc:spr:waterr:v:21:y:2007:i:5:p:821-833
    DOI: 10.1007/s11269-006-9105-4
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