The GFZ GRACE RL06 Monthly Gravity Field Time Series: Processing Details and Quality Assessment

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dc.contributor.authorDahle, Christoph
dc.contributor.authorMurböck, Michael
dc.contributor.authorFlechtner, Frank
dc.contributor.authorDobslaw, Henryk
dc.contributor.authorMichalak, Grzegorz
dc.contributor.authorNeumayer, Karl Hans
dc.contributor.authorAbrykosov, Oleh
dc.contributor.authorReinhold, Anton
dc.contributor.authorKönig, Rolf
dc.contributor.authorSulzbach, Roman
dc.contributor.authorFörste, Christoph
dc.date.accessioned2019-11-20T13:20:13Z
dc.date.available2019-11-20T13:20:13Z
dc.date.issued2019-09-11
dc.date.updated2019-10-07T20:32:05Z
dc.description.abstractTime-variable gravity field models derived from observations of the Gravity Recovery and Climate Experiment (GRACE) mission, whose science operations phase ended in June 2017 after more than 15 years, enabled a multitude of studies of Earth’s surface mass transport processes and climate change. The German Research Centre for Geosciences (GFZ), routinely processing such monthly gravity fields as part of the GRACE Science Data System, has reprocessed the complete GRACE mission and released an improved GFZ GRACE RL06 monthly gravity field time series. This study provides an insight into the processing strategy of GFZ RL06 which has been considerably changed with respect to previous GFZ GRACE releases, and modifications relative to the precursor GFZ RL05a are described. The quality of the RL06 gravity field models is analyzed and discussed both in the spectral and spatial domain in comparison to the RL05a time series. All results indicate significant improvements of about 40% in terms of reduced noise. It is also shown that the GFZ RL06 time series is a step forward in terms of consistency, and that errors of the gravity field coefficients are more realistic. These findings are confirmed as well by independent validation of the monthly GRACE models, as done in this work by means of ocean bottom pressure in situ observations and orbit tests with the GOCE satellite. Thus, the GFZ GRACE RL06 time series allows for a better quantification of mass changes in the Earth system.en
dc.description.sponsorshipDFG, FOR 2736, New Refined Observations of Climate Change from Spaceborne Gravity Missions (NEROGRAV)en
dc.description.sponsorshipBMBF, 03F0654A, GRACE-FO - Projektmanagement, Aufbau eines wissenschaftlichen Auswertesystems und Aufbau eines GRACE-FO Projektbürosen
dc.identifier.eissn2072-4292
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/10360
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-9319
dc.language.isoenen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subject.ddc551 Geologie, Hydrologie, Meteorologiede
dc.subject.othersatellite gravimetryen
dc.subject.otherGRACEen
dc.subject.otherLevel-2 processingen
dc.subject.othertime-variable gravity fielden
dc.subject.othermass change monitoringen
dc.titleThe GFZ GRACE RL06 Monthly Gravity Field Time Series: Processing Details and Quality Assessmenten
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.articlenumber2116en
dcterms.bibliographicCitation.doi10.3390/rs11182116en
dcterms.bibliographicCitation.issue18en
dcterms.bibliographicCitation.journaltitleRemote Sensingen
dcterms.bibliographicCitation.originalpublishernameMDPIen
dcterms.bibliographicCitation.originalpublisherplaceBaselen
dcterms.bibliographicCitation.volume11en
tub.accessrights.dnbfreeen
tub.affiliationFak. 6 Planen Bauen Umwelt::Inst. Geodäsie und Geoinformationstechnik::FG Physikalische Geodäsiede
tub.affiliation.facultyFak. 6 Planen Bauen Umweltde
tub.affiliation.groupFG Physikalische Geodäsiede
tub.affiliation.instituteInst. Geodäsie und Geoinformationstechnikde
tub.publisher.universityorinstitutionTechnische Universität Berlinen

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