ECCO Geometry Parameters for the 0.5 degree Lat-Lon Model Grid (Version 4 Release 4)

Description

This dataset provides geometric parameters for the regular 0.5-degree lat-lon grid from the ECCO Version 4 Release 4 (V4r4) ocean and sea-ice state estimate. Parameters include areas and lengths of grid cell sides and the horizontal and vertical coordinates of grid cell centers and corners. Additional information related to the global domain geometry (e.g., bathymetry and land/ocean masks) are also included. However, users should note these domain geometry fields are approximations because they have been interpolated from the ECCO lat-lon-cap 90 (llc90) native model grid. Users interested in exact budget closure calculations for volume, heat, salt, or momentum should use ECCO fields provided on the llc90 grid. Estimating the Circulation and Climate of the Ocean (ECCO) state estimates are dynamically and kinematically-consistent reconstructions of the three-dimensional, time-evolving ocean, sea-ice, and surface atmospheric states. ECCO V4r4 is a free-running solution of a global, nominally 1-degree configuration of the MIT general circulation model (MITgcm) that has been fit to observations in a least-squares sense. Observational data constraints used in V4r4 include sea surface height (SSH) from satellite altimeters [ERS-1/2, TOPEX/Poseidon, GFO, ENVISAT, Jason-1,2,3, CryoSat-2, and SARAL/AltiKa]; sea surface temperature (SST) from satellite radiometers [AVHRR], sea surface salinity (SSS) from the Aquarius satellite radiometer/scatterometer, ocean bottom pressure (OBP) from the GRACE satellite gravimeter; sea ice concentration from satellite radiometers [SSM/I and SSMIS], and in-situ ocean temperature and salinity measured with conductivity-temperature-depth (CTD) sensors and expendable bathythermographs (XBTs) from several programs [e.g., WOCE, GO-SHIP, Argo, and others] and platforms [e.g., research vessels, gliders, moorings, ice-tethered profilers, and instrumented pinnipeds]. V4r4 covers the period 1992-01-01T12:00:00 to 2018-01-01T00:00:00.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FECG5A-GRD44
21 Mission and Instrument Overview https://podaac.jpl.nasa.gov/ecco
21 The project website for the ECCO Consortium. https://www.ecco-group.org
21 Software maintained by ECCO Consortium on GitHub. https://github.com/ECCO-GROUP/
33 ECCO Version 4 Release 4 User Guide https://podaac-tools.jpl.nasa.gov/drive/files/misc/web/misc/ecco/docs/v4r4_user_guide.pdf
33 Synopsis of ECCO Version 4 Release 4 https://podaac-tools.jpl.nasa.gov/drive/files/misc/web/misc/ecco/docs/v4r4_synopsis.pdf
33 Sample Plots -- gcmfaces analysis of ECCO V4, Release 4 (1992-2017) https://podaac-tools.jpl.nasa.gov/drive/files/misc/web/misc/ecco/docs/v4r4_overview_plots.pdf
33 Instructions for reproducing ECCO Version 4 Release 4 https://podaac-tools.jpl.nasa.gov/drive/files/misc/web/misc/ecco/docs/v4r4_reproduction_howto.pdf
22 Thumbnail image for Website https://podaac.jpl.nasa.gov/Podaac/thumbnails/ECCO_L4_GEOMETRY_05DEG_V4R4.jpg
21 ECCO Version 4 Release 4 model configuration maintained by the ECCO Consortium on GitHub https://github.com/ECCO-GROUP/ECCO-v4-Configurations/tree/master/ECCOv4%20Release%204
21 Access the data set landing page for the collection. https://doi.org/10.5067/ECG5A-GRD44
21 Browse and download granules over HTTPS using the virtual directories service https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2013583732-POCLOUD/temporal
21 Python Tutorials for ECCO Central Production Version 4 (ECCO V4) https://ecco-v4-python-tutorial.readthedocs.io/
21 Synopsis of ECCO 'Central Estimate' global ocean and sea-ice state estimate, Version 4 Release 3 https://dspace.mit.edu/handle/1721.1/110380
21 Browse granule search results in Earthdata Search https://search.earthdata.nasa.gov/search/granules?p=C2013583732-POCLOUD

Tags

  • oceans
  • earth-science
  • sea-ice

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