{"title":"Gravity Variations and Global Pressure Loading.","authors":"J. Boy, P. Gegout, J. Hinderer","doi":"10.11366/SOKUCHI1954.47.267","DOIUrl":null,"url":null,"abstract":"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.","PeriodicalId":39875,"journal":{"name":"Journal of the Geodetic Society of Japan","volume":"47 1","pages":"267-272"},"PeriodicalIF":0.0000,"publicationDate":"2001-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.11366/SOKUCHI1954.47.267","citationCount":"10","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Geodetic Society of Japan","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.11366/SOKUCHI1954.47.267","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}
引用次数: 10
Abstract
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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