The glacier changes in the Alps from the GRACE and GRACE Follow-On Missions (2002-2023)

This dataset contains glacier mass change solutions for the Alps derived from GRACE and GRACE-FO data between April 2002 and September 2023. The dataset includes results from three experiments applying different forward modeling approaches: Ex1: Global unconstrained forward modeling Ex2: Regional constrained forward modeling Ex3: Spatial mascon fitting In addition, we provide glacier mass change results derived from the JPL mascon solution. Methods:Data were processed using GRACE/GRACE-FO Level-2 spherical harmonic solutions from COST-G. Corrections applied include:- Solid Earth deformation correction based on geodetic land surface displacement data- Forward modeling to mitigate leakage effects- Hydrological signal removal using GLDAS Noah V2.1 and ERA5-Land Please see readme.txt for further details.本数据集涵盖2002年4月至2023年9月间，基于重力恢复与气候实验（GRACE）及其后续任务（GRACE-FO）观测数据推导得到的阿尔卑斯山区冰川质量变化解算结果。数据集包含三组采用不同正演建模方案的实验结果： Ex1：全球无约束正演建模 Ex2：区域约束正演建模 Ex3：空间质量块拟合 此外，本数据集还提供了基于喷气推进实验室（JPL）质量块解算结果得到的冰川质量变化结果。 数据处理说明：本研究采用COST-G发布的GRACE/GRACE-FO Level-2球谐解算结果进行处理。所施加的校正项包括： - 基于大地测量地表位移数据的固体地球形变校正 - 用于缓解泄漏效应的正演建模校正 - 采用全球陆面数据同化系统（GLDAS）Noah V2.1与ERA5-Land数据去除水文信号 更多详细信息请参阅readme.txt文件。