Reconstructions allow us to extend the Gravity Recovery And Climate Experiment (GRACE) data record into the past and bridge the one-year gap between GRACE and its successor, GRACE-FO (Follow on). Reconstructed total water storage anomalies (TWSA) are obtained by identifying relations between GRACE-derived TWSA and climate variables via statistical and machine learning techniques. However, a comparative analysis of the characteristics and realism of reconstructions is missing.

中文翻译：

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类 GRACE 总储水量异常的多年代际重建有多现实？


重建使我们能够将重力恢复和气候实验 （GRACE） 数据记录扩展到过去，并弥合 GRACE 与其继任者 GRACE-FO（后续）之间的一年差距。重建的总储水距平 （TWSA） 是通过统计和机器学习技术确定 GRACE 衍生的 TWSA 与气候变量之间的关系而获得的。然而，缺少对重建的特点和真实感的比较分析。