GRACE ISDC

The twin GRACE satellites were launched on March 17, 2002. Since that time, the GRACE Science Data System (SDS) has produced and distributed estimates of the Earth gravity field on an ongoing basis. These estimates, in conjunction with other data and models, have provided observations of terrestrial water storage changes, ice-mass variations, ocean bottom pressure changes and sea-level variations. This portal, together with PODAAC, is responsible for the distribution of the data and documentation for the GRACE project.

双星GRACE卫星于2002年3月17日成功发射。自那时起，GRACE科学数据系统（SDS）持续生产并分发地球重力场估计值。这些估计值与其他数据和模型相结合，为地表水储量变化、冰质量波动、海洋底部压力变化和海平面变化提供了观测数据。本门户与PODAAC共同负责GRACE项目数据的分发及相关文档的传播。