摘要
利用分布于全国范围内的125个气象探空测站点(每日8:00和20:00)的探空数据,应用数据库编程与GIS技术,对大气可降水量在全国的分布情况进行了分析,得到了2002年全年以及春夏秋冬4个季节(2001年12月和2002年1,2月作为冬季)的平均大气可降水量在全国的分布状况。对数据进行分析可知:在空间上,我国的大气可降水量总体呈东南多,西北及青藏高原地区少的分布状况。同时,由于地形组合状况的特殊性,导致四川盆地、天山北麓等地区的大气可降水量略高于其周围地区;在时间上,夏季的大气可降水量值较高,可达到62mm左右,冬季较少,而春秋季除局部地区外大气可降水量基本持平。
Use the data in 8 and 20 o′clock of 125 meteorological sounding test sites , combined with the database programming and GIS technology , analysis the distribution of the precipitable water in our country .In the end, we acquire the situation of atmospheric precipitable water distribution .Analysis the results , we can know：in the space apartment , the atmospheric precipitable water is more in the southeast, and less in northwest and the Qingzang plateau. At the same time, because of the terrain, in Sichuan bison and the north of the Tianshan mountain has more precipitable water than the around regions ;In the time apartment, in summer, the value can be higher , about 62 mm;but in winter , the value is less .Spring and autumn may be similar with each other except in some spetial are-as.
出处
《测绘与空间地理信息》
2014年第3期100-102,106,共4页
Geomatics & Spatial Information Technology
基金
公益性行业(气象)科研专项项目(GYHY201106032-03)资助
关键词
大气可降水量
探空数据
GIS
空间分布
atmospheric precipitable water
sounding data
GIS
distribution in our country
