De-trended Global Isostatic Residual - A Series

This de-trended global isostatic residual grid produced from the "A" Series grids, which were produced from a combination of ground gravity data for Australian onshore locations, gravity data derived from satellite altimetry for offshore locations, and gravity data from the EGM2008 global gravity model for the onshore locations in countries other than Australia.本数据集为基于"A系列格网"生成的去趋势全球均衡剩余重力格网。该A系列格网的数据源组合为：澳大利亚陆上区域采用地面重力数据，近海区域采用卫星测高反演得到的重力数据，澳大利亚以外国家的陆上区域则采用EGM2008全球重力模型的重力数据。