Gridded (0.25 deg) monthly ocean heat content from combining GRACE(-FO) satellite gravimerty and satellite altimetry

DOI

Monthly ocean heat content (OHC) changes (in J/m**2) are provided on a global 0.25 deg grid for the time period 2002-04 till 2020-12. Missing month are due to non-availability of Gravity Recovery and Climate Experiment (GRACE) gravimetry observations and an about one year gap between the GRACE and its successor GRACE-FO missions. The steric expansion of the ocean due to the Earth's energy imbalance can be observed from a combination of GRACE (-FO) satellite gravimetry and satellite altimetry observations. Here we utilized the global fingerprint inversion method (Rietbroek et al., 2016, Uebbing et al., 2019) in order to derive global and regional sea level budgets. The steric fingerprints and corresponding estimated scaling factors are then utilized to rescale ORAS5 ocean reanalysis (Zuo et al, 2019; Copernicus Climate Change Service, 2021) derived OHC by the ratio of observed and modeled steric sea level as part of the GRACE(-FO) and Altimetry Mode Rescaling (GAMR) method. This methodology represents an extension to the conventional approach of scaling global steric sea level with one constant factor. The GAMR method allows to account for the fact that steric sea level and OHC spatio-temporal behavior is not identical enabling easy computation of global and regional OHC change.

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.967495
Related Identifier References https://doi.org/10.24381/CDS.67E8EEB7
Related Identifier References https://doi.org/10.1073/pnas.1519132113
Related Identifier References https://doi.org/10.1029/2018JC014341
Related Identifier References https://doi.org/10.5194/os-15-779-2019
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.967495
Provenance
Creator Uebbing, Bernd ORCID logo; Kusche, Jürgen (ORCID: 0000-0001-7069-021X)
Publisher PANGAEA
Publication Year 2024
Funding Reference German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 273739224 https://gepris.dfg.de/gepris/projekt/273739224 Priority Programme 1889 Regional Sea Level Change and Society; German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 313917204 https://gepris.dfg.de/gepris/projekt/313917204 Reconciling ocean mass change and GIA from satellite gravity and altimetry (OMCG-2); German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 441179229 https://gepris.dfg.de/gepris/projekt/441179229 Direct Measurement of Earth's Energy Imbalance with Geodetic Satellites – Feasibility Study (EEI-Geodetic); German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID KI-FOR5361 https://www.algoforge.de/ AlgoForGe
Rights Creative Commons Attribution 4.0 International; Data access is restricted (moratorium, sensitive data, license constraints); https://creativecommons.org/licenses/by/4.0/
OpenAccess false
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 2 data points
Discipline Earth System Research