01-GRACE数据产品下载

2022-08-19 08:37 作者:我是水怪的哥 0人读过 | 我要投稿

根据 GRACE解算的时间和方法，数据发布机构提供了四种模型：全球大气模型对应的球谐系数（GAA）；海洋模型对应的球谐系数（GAB）；全球大气海洋模型对应的球谐系数（GAC）；海洋范围大气海洋模型对应的球谐系数（GAD）即大地水准面模型的球谐系数（GSM）。GSM是GRACE原始观测数据中扣除了固体潮、海潮、极潮、非潮汐大气和高频海洋信号后产品，反映的是地表及内部质量重新分布引起的时变重力信号。

ICGEM - International Centre for Global Earth Models

DescriptionThe International Centre for Global Earth Models (ICGEM) is one of five services coordinated by the International Gravity Field Service (IGFS) of the International Association of Geodesy (IAG). The primary task of the ICGEM is making all global gravity field models of the Earth available to the public. The models can be downloaded on the ICGEM website in a standardised self-explanatory format as spherical harmonic coefficients. ICGEM provides not only the most recent, but also historical models, and provides a Digital Object Identifier (DOI) services for gravitational models since 2015. Gravity field differences, their time variation, and different gravity field model functionals are available via a dedicated gravity function calculation service and visualization tool provided on the ICGEM website. In addition, the web site offers tutorials on spherical harmonics and the underlying theory of the calculation service.Type of DataGlobal gravitational models, static models, temporal models, topography related modelsServicesDOI Service, ICGEM Model Visualisation; ICGEM calculation service; tutorialsContactElmas Sinem Ince, Sven ReißlandSectionsGlobal Geomonitoring and Gravity Field (1.2)Links

GFZ Homepage: ICGEM - International Centre for Global Earth Models
Project Homepage: ICGEM Website
Higher category: IAG Services, IGFS
Data access: via GFZ Data Services/ DOI, via ICGEM

进入官网，我们我们看到几个模块。界面左边是切换不同的功能，包括选择静态重力场、时变重力场、以及3D可视化等等。右边即为不同机构发布的各类数据