Gridded (0.25 deg) monthly ocean heat content from consistently combining GRACE(-FO) satellite gravimerty, in situ Argo profiles 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 2024-12. 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 from ITSG2018 (Mayer-Gürr et al., 2018; Kvas et al., 2019), in situ Argo profiles from easyCORA (Szekely et al., 2019) and along-track satellite altimetry observations from the RADS database (Scharroo et al., 2013). Here we utilized the global fingerprint inversion method (Rietbroek et al., 2016; Uebbing et al., 2019; Uebbing, 2022) 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, Argo and Altimetry based Mode Rescaling (GAAMR) method. This methodology represents an extension to the conventional approach of scaling global steric sea level with one constant factor. The GAAMR method builds on the fingerprint inversion, leveraging the separation into individual sea level modes and enables easy computation of global and regional OHC change.

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.994058
Related Identifier References https://doi.org/10.24381/CDS.67E8EEB7
Related Identifier References https://doi.org/10.1029/2019JB017415
Related Identifier References https://doi.org/10.5880/ICGEM.2018.003
Related Identifier References https://doi.org/10.1073/pnas.1519132113
Related Identifier References https://ui.adsabs.harvard.edu/abs/2013ESASP.710E..69S/abstract
Related Identifier References https://doi.org/10.5194/os-15-1601-2019
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.994058
Provenance
Creator Uebbing, Bernd ORCID logo; Kusche, Jürgen (ORCID: 0000-0001-7069-021X)
Publisher PANGAEA
Publication Year 2026
Funding Reference 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
Temporal Coverage Begin 2002-04-01T00:00:00Z
Temporal Coverage End 2024-12-31T23:59:59Z