重力变化和全球压力负荷。

Q4 Earth and Planetary Sciences

Journal of the Geodetic Society of Japan Pub Date : 2001-03-25 DOI:10.11366/SOKUCHI1954.47.267

J. Boy, P. Gegout, J. Hinderer

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引用次数: 10

摘要

我们通过对全球大气负荷的GGP(全球地球动力学项目)网络超导重力仪(SG)的重力数据进行校正，显示了地表重力残余量的减少(约10- 20%)。我们使用格林函数形式和NCEP(国家环境预测中心)提供的全球压力图，并将载荷校正与经验的当地气压和电阻校正进行比较。我们还可以验证倒转气压计(IB)假说作为海洋对超过5天的压力负荷的响应。非倒转气压计(NIB)假说被证明是描述海洋对大气压力响应的一个不充分的假设。

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Gravity Variations and Global Pressure Loading.

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.

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来源期刊

Journal of the Geodetic Society of Japan Earth and Planetary Sciences-Earth and Planetary Sciences (all)

CiteScore

0.20

自引率

0.00%

发文量