Diurnal atmospheric tide and induced gravity variations

被引：16
|
作者：
Boy, JP
Ray, R
Hinderer, J
机构：
[1] ULP, UMR CNRS 7516, EOST, IPGS, F-67084 Strasbourg, France
[2] NASA, Goddard Space Flight Ctr, Space Geodesy Branch, Code 926, Greenbelt, MD 20771 USA
来源：
JOURNAL OF GEODYNAMICS | 2006年 / 41卷 / 1-3期
关键词：
air tides; atmospheric loading; gravity;
D O I：
10.1016/j.jog.2005.10.010
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
The gravity loading effects induced by the diurnal (S-1) air tide are investigated. We compare worldwide superconducting gravimeter records belonging to the GGP (Global Geodynamics Project) network with loading predictions computed from recent air and oceanic tidal models. Although discrepancies between the observations and models are large, the global tidal models allow a significant reduction of gravity residuals compared with the classical and empirical local pressure correction as well as with the loading computed with surface pressure provided by meteorological centers under the assumption of an inverted barometer response of the ocean to pressure forcing. (c) 2005 Elsevier Ltd. All rights reserved.
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页码：253 / 258
页数：6
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