Scientific Computation Platform for Geophysical Geodesy

Complete computation processes of high-resolution load deformation field time series

Issuing time:2024-11-11 16:39Author:Chuanyin ZhangLink:http://www.zcyphygeodesy.com/en/
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Taking the regional soil water variations as the example, the remove-restore scheme combined the global load spherical harmonic coefficient synthesis and regional residual load SRBF (spherical radial basis function) approach is employed to compute the high-precision and high-resolution regional load deformation field all-element grid time series in the near-Earth space in the four steps.

The soil water here consists of soil water in 4 m shallow, wetland water, vegetation water, glaciers and snow mountain water, but does not include lakes, rivers and groundwater.

The global soil water equivalent water height (EWH) time series and the regional high-resolution soil water EWH time series are subtracted from their respective annual averages in advance to unify the global and regional soil water variation monitoring datum.

The complete computation process of high-resolution load deformation field all-element grid time series consists of four steps usually, namely global surface load spherical harmonic analysis, spherical harmonic synthesis for load deformation field, regional residual load SRBF approach and SRBF synthesis for residual load deformation field.




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