Analysis of Standardized Precipitation Evapotranspiration Index over Chiangrai and Phayao

Abstract:

Drought indices analysis plays a vital role in flood and drought monitoring and early warning, which is a main responsibility of Thai Meteorological Department (TMD), especially the basins that are limited in use o¬¬f water resources such as Kok and Ing river basins. This study aims to analyze drought situations utilized Standardized Precipitation Evapotranspiration Index (SPEI) at Chiangrai and Phayao provinces (located Kok and Ing basins). Both observed data, precipitation and temperature, are used for calculation (data in between 1951-2018 for Chiangrai and 1981-2018 for Phayao). The result shows that SPEI can determine drought probability and its potential impact in the observed area. This study could be applied to drought monitoring over other basins.

• Periodical: Applied Mechanics and Materials (Volume 891)
• Pages: 117-126
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.891.117
• Online since: May 2019
• Authors: Chanattha Saengrattanayon, Nuttapong Panthong, Parwapath Phunthirawuthi, Dr.Sukrit Kirtsaeng*
• Keywords: Drought Index, Evapotranspiration, Northern Thailand, Precipitation, SPEI

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