收稿日期: 2005-05-11
修回日期: 2005-07-19
网络出版日期: 2005-09-25
基金资助
中国气象局新技术应用推广项目“西北地区干旱监测系统研究”(编号:CMATG2005M22);科技部科研院所社会公益研究专项“中国干旱气象灾害监测预警方法研究”(编号:2005DIB5J192)资助.
MODIFICATION AND APPLICATIONS OF PDSI FOR MID AND EASTERN GANSU PROVINCE
Received date: 2005-05-11
Revised date: 2005-07-19
Online published: 2005-09-25
马鹏里 , 董彦雄 , 杨小利 , 王若升 , 杨兴国 . PDSI在甘肃中东部地区的修正和应用[J]. 地球科学进展, 2005 , 20(9) : 1022 -1028 . DOI: 10.11867/j.issn.1001-8166.2005.09.1022
On the base of fundamental and method of the PDSI ,a further modified PDSI for mid and eastern Gansu province was developed.Stations,calculation of potential evapotranspiration and runoff etc,have been revised in this index. With this modified index,the PDSI was computed at 20 representative stations from 1961 to 2000,and the computed Index was compared with the recorded drought situation. the basic characteristics of drought was analysed .It is found that the further PDSI can reflect the severity of drought in this region,and is applicable for mid and eastern Gansu.
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