福建省地基GPS遥感大气可降水量的分布特征分析  

Atmosphere Precipitation Distribution Analysis by Ground-based GPS Remote Sensing in Fujian

作　　者：潘卫华[1] Weihua Pan(Fujian meteorological institute of science,Fuzhou,350001,China)

机构地区：[1]福建省气象科学研究所,福建福州350001

出　　处：《环境科学前沿（中英文版）》2015年第3期86-90,共5页Frontier of Environmental Science

基　　金：受福建省自然科学基金项目(2013J01152)和福建省科技计划重点项目(2014Y0041)支持资助。

摘　　要：利用福建省地基GPS数据遥感全省的大气可降水量PWV,动态分析PWV值的空间格局变化规律,并结合气象资料,对GPS遥感的大气可降水量与局地降水之间关系进行了定量分析。结果表明:地基GPS遥感的大气可降水量资料可监测福建上空的水汽空间分布格局和变化特征,对于动态监测全省降水过程的变化有着很好的指示作用。在与具体测站的大气可降水量PWV和实际降水的对比分析中可以发现,充足的PWV含量是产生降水的必要非充分条件,还与局地的热动力抬升条件密不可分。PWV的变化并不一定与测站的降水量密切对应,但与以测站为中心的局地降水的发生有着高度相关性,有着很好的预示作用。In this work,the ground-based GPS data in Fujian province was used to remote sense atmospheric precipitation PWV value,and dynamically analyzed the spatial pattern of PWV value,combined with meteorological data,in order to quantitatively analysis the relationship between the GPS remote sensing of atmospheric precipitation and the local rainfall.The results showed that the ground-based GPS remote sensing atmosphere precipitation data could be detected the distribution pattern and the variation characteristics of water over Fujian,and playa good indication role in dynamic monitoring of the change of the precipitation process.Moreover,it could be found plenty of PWV content was a necessary but not sufficient condition of precipitation in the comparison of atmosphere with precipitation PWV of the specific station and the practical of the precipitation,also was closely connected with the local thermodynamic lifting condition.PWV changes were not necessarily closely corresponding to the station of precipitation,but it had a positive effect in the local station with the occurrence of precipitation.

关 键 词：地基GPS 大气可降水量 局地降水 遥感 福建省 

分 类 号：P426.61[天文地球—大气科学及气象学]