Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/81669
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dc.contributorDepartment of Land Surveying and Geo-Informatics-
dc.creatorRathnayake, S-
dc.creatorTenzer, R-
dc.date.accessioned2020-02-10T12:28:31Z-
dc.date.available2020-02-10T12:28:31Z-
dc.identifier.issn1674-9847-
dc.identifier.urihttp://hdl.handle.net/10397/81669-
dc.language.isoenen_US
dc.publisherEditorial Office of Journal of Geodesy and Geodynamicsen_US
dc.rights©2019 Institute of Seismology, China Earthquake Administration, etc. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This isan open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).en_US
dc.rightsThe following publication Rathnayake, S., & Tenzer, R. (2019). Optimum choice of parameters and numerical schemes for a regional gravimetric moho recovery. Journal of Geodesy and Geodynamics, 10(6), 417-429 is available at https://dx.doi.org/10.1016/j.geog.2019.05.003en_US
dc.subjectCrusten_US
dc.subjectGravityen_US
dc.subjectMoho inversionen_US
dc.subjectIsostasyen_US
dc.titleOptimum choice of parameters and numerical schemes for a regional gravimetric moho recoveryen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage417-
dc.identifier.epage429-
dc.identifier.volume10-
dc.identifier.issue6-
dc.identifier.doi10.1016/j.geog.2019.05.003-
dcterms.abstractDespite practical limitations of isostatic theories to model the Moho geometry are well-known, gravimetric methods are often used in terrestrial studies of crustal structure in regions with a low seismic data coverage. Moreover, these methods are indispensable in planetary studies. Various gravimetric methods have been proposed. The Airy and Pratt theories are defined based on adopting a local compensation mechanism. The Vening Meinesz theory assumes a regional isostatic flexural model. The Vening Meinesz regional isostatic model generally describes a respond of the lithosphere to a load more realistically than the Airy model over continents. The Pratt method, on the other hand, better describes a compensation mechanism of the oceanic lithosphere. The application of a particular isostatic model also depends on applied numerical procedures, parameters for inversion, input data specifications, and many other aspects. In this study, we address some basic aspects by applying local and regional isostatic models for a Moho recovery. We also conduct a spectral analysis to assess a spectral resolution of gravity data that is optimal for a Moho recovery. Furthermore, we inspect the influence of low-degree spherical harmonics of gravity field on a Moho geometry. Gravimetric results are validated using seismic data at the European plate. Our results confirm a better performance of a regional compensation principle. We also demonstrate that a different thickness of the oceanic and continental crustal thickness should be taken into account as a priori information. Spectral analysis indicates that gravity data used for a Moho inversion should optimally have a spatial resolution between degrees 60 to 180. Results also show that low-degree spherical harmonics do not modify significantly the Moho geometry, particularly over regions with a relatively homogenous structure of deep mantle.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationJournal of geodesy and geodynamics, Nov. 2019, v. 10, no. 6, p. 417-429-
dcterms.isPartOfJournal of geodesy and geodynamics-
dcterms.issued2019-
dc.identifier.isiWOS:000488249300001-
dc.identifier.eissn2589-0573-
dc.description.validate202002 bcrc-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_Scopus/WOSen_US
dc.description.pubStatusPublisheden_US
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