Temporal-Spatial Characteristics Analysis of ZTD and ZWD Height Scale Factors in China
Abstract Taking into account the low temporal-spatial resolution of the existing ZTD and ZWD vertical profile model, we analyze the temporal-spatial distribution characteristics of ZTD and ZWD height scale factors in China based on the 2014-2016 meteorological reanalysis data MERRA-2 provided by NASA. The results show that both ZTD and ZWD height scale factors have obvious annual and semi-annual changes, which are significantly correlated with longitude and latitude, and the temporal-spatial distribution characteristics of ZTD and ZWD height scale factors are significantly different.
Key words :
negative exponential function
height scale factors
temporal-spatial distribution characteristics
ZTD
ZWD
Cite this article:
XIE Shaofeng,PAN Qingying,HUANG Liangke et al. Temporal-Spatial Characteristics Analysis of ZTD and ZWD Height Scale Factors in China[J]. jgg, 2021, 41(12): 1211-1215.
XIE Shaofeng,PAN Qingying,HUANG Liangke et al. Temporal-Spatial Characteristics Analysis of ZTD and ZWD Height Scale Factors in China[J]. jgg, 2021, 41(12): 1211-1215.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2021/V41/I12/1211
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