According to the concept of soil-moisture-balance in Palmer-drought-model,daily drought index(DDI) is defined by available water content(AWC) below level soil. AWC was simulated day by day using daily data of temperature and rainfall.
英
美
- 參考帕默爾(Palm er)旱度模式中土壤水分平衡概念；提出以逐日氣溫和降水資料；逐日滾動(dòng)模擬土壤有效水分；并以下層土壤有效含水量構建干旱強度動(dòng)態(tài)指數(DD I).
