RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2015, Vol. 24 >> Issue (11): 1969-1976.doi: 10.11870/cjlyzyyhj201511022

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METHODS FOR DIAGNOSIS AND ASSESSMENT OF METEOROLOGICAL DROUGHT AND APPLICATION IN THE MIDDLE AND LOWER YANGTZE BASIN

QIN Peng-cheng, LIU Min   

  1. Wuhan Regional Climate Center, Wuhan 430074, China
  • Received:2015-02-09 Revised:2015-05-11 Online:2015-11-20

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Abstract: Drought is a climatic anomaly, characterized by certain time constants and spatial extent. In view of the concept of time-area function, comprehensive assessment indices and analysing mode for systematic quantification and visualization of space-time properties of drought are proposed based on the comprehensive monitoring index of meteorological drought (MCI). By application for the middle and lower Yangtze basin, it shows that the assessment indices and procedure proposed above perform well in capturing the magnitude and interannual variation of historical drought, and show a certain capability to determine the start, duration, and strength of a real-time drought process. The assessment indices and procedure are simple in calculation, reasonable in analysis and easy in spread, and thus have a great advantage in the provincial, basin, as well as national drought monitoring and assessment operations.

Key words: meteorological drought, assessment, Middle and Lower Yangtze Basin

CLC Number: 

  • P4
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