摘要
利用重庆市1∶25万电子地图和100m×100m分辨率的DEM资料,建立了基于常规气象观测资料的实际起伏地形下重庆市水汽压空间分布模型,计算了重庆市各月月平均和年平均水汽压的空间分布,并完成其制图同时详细分析了重庆市实际地形下水汽压的空间分布。分析表明:随着海拔高度的增加,水汽压逐渐减小;各月水汽压的最小值出现在东北山区;重庆市水汽压的季节变化很明显。
The calculation model of the spatial distribution of water vapor pressure in Chongqing in real terrain is established on the basis of conventional meteorological data. The monthly and the annual mean spatial distributions of water vapor pressure in over Chongqing are calculated and the map drawing and particularly the spatial distribution of water vapor pressure over Chongqing in real terrain are completed. The analysis shows that water vapor pressure decreased with the increasing of sea level elevation; the minimums of water vapor pressure for all months appeared in the northeastern mountainous area; there is distinct seasonal change in water vapor pressure over Chongqing.
出处
《气象科技》
2007年第1期66-70,共5页
Meteorological Science and Technology
基金
国家重点基础研究发展规划基金项目(G19990436-01G20000779)资助
关键词
水汽压
重庆
起伏地形
空间分布
季节变化
water vapor pressure, Chongqing, real terrain, spatial distribution, seanonal change
