摘要
类似于降水量Ｚ指标法对旱情的监测，进行了云参数监测旱情的研究，建立了云量监测的Ｚ指标法。以１９８７～１９９２ 年的总云量和高云量的候平均资料为基础，求出１９９２ 年不同时段的Ｚ值，得到以图形表示的各时段的旱情监测结果，并与同期降水量Ｚ指标法的结果作了比较。分析表明，用云参数的Ｚ指标法监测旱情是可行的。由于云参数既容易获得又不受地区限制。
Similar to the method of Z index of precipitation,a trial research is made on monitoring drought by the amount of cloud,and the method of Z index of cloud amount is established.Based the five day mean total cloud amounts and high cloud amounts, from 1987 to 1992, the Z index of cloud amount on the different time intervals of 1992 is calculated and showed by graphs, and compared with Z index of precipitation at the same time. It is shown that the method of Z index cloud amount is effective.Since the cloud amount can be obtained directly from satellite cloud pictures,the difficulty and limitation of getting the data of precipitation with conventional observations can be avoided.This method can be used to monitor drought in regions being short of the precipitation data, such as the west of China.
出处
《南京气象学院学报》
CSCD
1999年第4期616-624,共9页
Journal of Nanjing Institute of Meteorology
基金
国家九五攻关项目!(97G9-1)
关键词
云参数
旱涝
监测
降水量
the amount of cloud,drought,monitoring
