福建“98.6”中尺度强降水红外云图特征量统计分析

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

基金项目: 福建省气象局气象科学技术研究课题(1998)

A STATISTICAL ANALYSIS OF THE CHARACTERISTIC VALUES OF IR. CLOUD IMAGE DURING MESOSCALE HEAVY PRECIPITATION IN JUNE 1998 IN FUJIAN

摘要: 对福建省"98.6"中尺度强降水红外云图特征量进行统计分析。结果表明,福建省6月份中尺度对流云团出现强降水(某站小时雨量≥8mm)机率达到70%,云顶温度T_BB平均值为-58℃,冷层(T_BB≤-44℃)云温面积占有率T_BZ为42%,可以利用冷层云温面积占有率绝对增量ΔT_BZ及云温档次号T_BBi作为影响因子估测地面降水。
- 云图的特征量 /
- 强降水 /
- 统计分析
Abstract: The characteristic values derived from IR. cloud image during mesoscale heavy precipitation taking place in June 1998 in Fujian province were analyzed by using statistical method. The results indicate that the frequency of heavy precipitation in mesoscale connective system in June in Fujian is 70 %, and hourly rainfall amount at a single station was equal to or more than 8mm; and the average value of cloud top temperature(T_BB) was-58 ℃; and the value of ratio (T_BZ) of amount of pixels in which T_BB is below-44 ℃ was 42 % to total. These characteristic values (e.g.T_BB, T_BZ, ΔT_BZ) may be used as forecasting factors to estimate surface rainfall amount.
- characteristic values of IR. cloud image /
- heavy precipitation /
- statistical analysis

[1]	李建辉. 气象卫星雷达数字化图像的分析应用[M]. 北京:气象出版社,1993,82-84.
[2]	中村和信,土屋,乔. 由日本GMS的空间平均资料推定降水量[J]. 天气, 1985, 32:565-572.
[3]	李建辉. 用高分辨数字云图制作雷暴阵雨概率预报[J]. 气象,1988,14(1):32-35.
[4]	蔡晓云,伏建国,朱革. 一种运用卫星和雷达资料作区域性0-3小时强降水预报的方法[A],大气遥感技术论文集 [C]. 北京:气象出版社,1997,61-65.
[5]	卢乃锰,吴蓉璋. 强对流降水云团的云图特征分析[J]. 应用气象学报,1997,8:269-275.
[6]	方竹君,肖稳安,汤达章. 利用红外卫星云图资料估计降水量方法的研究[J]. 南京气象学院学报,1998,21:278-284.
[7]	王怀俊, 刘爱鸣, 陈世阳. "98.6.19"闽北大暴雨中尺度对流云团特征分析[J]. 福建气象, 1999 (1): 16-19.
[8]	陈秋萍."98.6.22" 闽北暴雨雷达回波分析[J]. 福建气象, 1999 (3): 17-20.