CSR TELLUS GRACE-FO Level-3 Monthly Land Water-Equivalent-Thickness Surface-Mass Anomaly Release 6.0 in netCDF/ASCII/GeoTIFF Formats (GFLND)

The CSR monthly land mass grids contain land water mass anomaly given as equivalent water thickness derived from GRACE time-variable gravity observations during the specified timespan in ASCII/netCDF/GeoTIFF formats. The Equivalent water thickness represents the total terrestrial water storage anomalies from soil moisture, snow, surface water (incl. rivers, lakes, reservoirs etc.), as well as groundwater and aquifers. A glacial isostatic adjustment (GIA) correction has been applied, and standard corrections for geocenter (degree-1) and C20 (degree-20) are incorporated. Post-processing filters have been applied to reduce correlated errors. From the RL06 version, all GRACE-FO products in the ASCII format have adopted the YAML encoding header, which is in full compliance with the PO.DAAC metadata best practices.

本CSR月度陆地质量网格数据集包含指定时间段内基于GRACE时间变量重力观测得到的陆地水体异常值，该异常值以等效水厚度表示，并采用ASCII/netCDF/GeoTIFF格式存储。等效水厚度反映了土壤水分、积雪、地表水体（包括河流、湖泊、水库等）以及地下水和含水层的总陆地水储存异常。数据中已应用冰川均衡调整（GIA）校正，并纳入了地心（一度）和C20（二十度）的标准校正。此外，已应用后处理滤波器以降低相关性误差。自RL06版本起，所有ASCII格式的GRACE-FO产品均采用了YAML编码头，完全符合PO.DAAC元数据最佳实践。