Gravity Variations and Global Pressure Loading.
Gravity Variations and Global Pressure Loading.
复制标题
重力变化和全局压力载荷。
DOI:
10.11366/sokuchi1954.47.267
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发表时间:
2001
期刊:
影响因子:
--
通讯作者:
J. Hinderer
中科院分区:
文献类型:
--
作者:
J. Boy;P. Gegout;J. Hinderer
We show the reduction (about 10-20 %) of surface gravity residues by correcting gravity data from superconducting gravimeters (SG) of the GGP (Global Geodynamics Project) network from global atmospheric loading. We use a Green's function formalism and global pressure charts provided by NCEP (National Center for Environmental Prediction) and compare the loading correction to an empirical local barometric ad mittance correction. We can also validate the inverted barometer (IB) hypothesis as the oceanic response to pressure loading for periods exceeding 5 days. Non-inverted barometer (NIB) hypothesis is shown to be an inadequate assumption for describing the ocean response to atmospheric pressure.