[1]YANG Lixiao,ZENG Shengxuan,JIANG Yiwen,et al.Comparison of Drought Characteristics in the Upstream of the Heihe River Basin Based on Palmer Drought Severity Index and Standard Precipitation Index[J].Research of Soil and Water Conservation,2017,24(02):132-136.
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Comparison of Drought Characteristics in the Upstream of the Heihe River Basin Based on Palmer Drought Severity Index and Standard Precipitation Index
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 02
Page number:
132-136
Column:
Public date:
2017-04-28
- Title:
- Comparison of Drought Characteristics in the Upstream of the Heihe River Basin Based on Palmer Drought Severity Index and Standard Precipitation Index
- Keywords:
- drought characteristics; Palmer drought severity index; standard precipitation index; upstream of the Heihe River
- CLC:
- P426.616
- DOI:
- -
- Abstract:
- Based on the monthly mean temperature and precipitation data from 4 meteorological stations (Qilian, Yeniugou, Tuole and Sunan) in the upper reaches of Heihe River Basin during the period from 1960 to 2009, we calculated the Palmer drought severity index (PDSI) and standard precipitation index (SPI) for each station at different time scales. The results show that at the annual scale, both PDSI and SPI could reasonably describe drought condition in the upper reaches of the Heihe River Basin; at the monthly scale, there is a significant difference in the correlation coefficients between the PDSI and SPI for each station, which varies with the month.Severe droughts occurring most frequently in the summer and autumn and thus implementation of the drought management practices is critical for alleviating drought impacts during these seasons in the study region.
- References:
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