摘要
GPS对流层延迟与可降水量有很强的相关性,在没有气象数据的地区对流层延迟直接推算的可降水量可以作为气象短期预报的参考。针对2个不同高度层,采用线性模型和指数模型相结合的方法建立了一种新的对流层天顶延迟模型,并利用标准指数关系大气层参数及地壳变形监测站的实测数据对该模型进行了精度验证,试验证明了该模型的有效性。
There is a stronger correlation between GPS tropospheric delay and precipitable water amount.The precipitable water amount of tropospheric delay can be considered as the reference of the short-term climate forecast in areas without climate data.For two tiers of different height,a new tropospheric zenith delay model was set up by using linear model and exponential model.Using the aerosphere parameters of standard exponential relation and the measured data of crustal deformation monitoring station,the precision of the model was verified.The test proved the validity of the model.
出处
《安徽农业科学》
CAS
北大核心
2010年第20期10757-10758,10761,共3页
Journal of Anhui Agricultural Sciences
基金
水文水资源与水利工程国家重点实验室开放基金(2009-490211)
关键词
对流层延迟
可降水量
分层模型
预报
Tropospheric delay
Precipitable water amount
Hierarchical model
Forecast
