基于专家场模型FoEs的安徽省GPS/PWV资料插补初步研究

Preliminary study of interpolation GPS/PWV data based on fields of experts model FoEs in Anhui Province

由于GPS/PWV资料在短时和临近天气预报、人工影响天气和空中水资源研究中具有潜在应用价值。考虑到GPS/PWV资料存在较多缺测,文中基于专家场模型(Fields of Experts,FoEs)进行了GPS/PWV资料插补初步研究。采用交叉验证法检验了常用插值方法(临近点、线性、三次样条和立方插值法)和FoEs插补GPS/PWV的精度,得到的FoEs模型插补精度较高。进一步给出了FoEs插补GPS/PWV连续缺测资料,解决了常用插值法无法对连续缺测资料有效插值的问题,为其它资料插补提供了新的思路。

Because of the GPS/PWV data has potential application value in the research of short-term weather forecast, weather modification and the air to water resources research. Considering the loss data of GPS/PWV,this paper preliminary studies on the interpolation of GPS/PWV data based on the fields of experts model FoEs. Using cross validation method, the precision of commonly interpolation method （nearest,linear,spline and cubic） and FoEs interpolated GPS/PWV are tested. And the FoEs model interpolation possesses of higher accuracy. When exists continuous loss data, the interpolation experiments of GPS/PWV data using FoEs are further given out. It can solve the problem of common interpolation method that cannot work in continuous loss data. The FoEs maybe offer a new interpolation idea for the other data.