ECCO Ocean 3D Gent-Mcwilliams, Redi, and Background Vertical Diffusivity Coefficients for the Lat-Lon-Cap 90 (llc90) Native Model Grid (Version 4 Release 4)
(ECCO_L4_OCEAN_3D_MIX_COEFFS_LLC0090GRID_V4R4)| Version | V4r4 |
| Processing Level | 4 |
| Start/Stop Date | 1992-Jan-01 to 2018-Jan-01 |
| Short Name | ECCO_L4_OCEAN_3D_MIX_COEFFS_LLC0090GRID_V4R4 |
| Description | This dataset provides 3D coefficients for the Gent-McWilliams and Redi parameterizations and background vertical diffusivity on the lat-lon-cap 90 (llc90) native model grid from the ECCO Version 4 Release 4 (V4r4) ocean and sea-ice state estimate. Each of these three time-invariant, spatially-varying terms are estimated during the ECCO V4r4 optimization. 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. |
| DOI | 10.5067/ECL5A-MIX44 |
| Measurement | OCEANS > SEA ICE > SEA ICE CONCENTRATION |
| Platform/Sensor | |
| Project | Estimating the Circulation and Climate of the Ocean (ECCO) |
| Data Provider | Publisher: PO.DAAC Creator: ECCO Consortium, Fukumori, I., Wang, O., Fenty, I., Forget, G., Heimbach, P., & Ponte, R. M. Release Place: PO.DAAC Release Date: 2021-Apr-19 |
| Format | netCDF-4 |
| Keyword(s) | ECCO, Estimating the Circulation and Climate of the Ocean, reconstruction, remote sensing, in situ, estimate, ocean, global, model, 3d, mixing, coefficients |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Resolution Spatial Resolution: 1 Decimal Degrees x 1 Decimal Degrees Coverage North Bounding Coordinate: 90 degrees South Bounding Coordinate: -90 degrees West Bounding Coordinate: -180 degrees East Bounding Coordinate: 180 degrees Time Span: 1992-Jan-01 to 2018-Jan-01 Projection Ellipsoid: WGS 84 |
| DIRECT ACCESS | |
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| Available for access in-region with AWS Cloud | |
Region | |
| us-west-2 | |
| podaac-ops-cumulus-protected/ECCO_L4_OCEAN_3D_MIX_COEFFS_LLC0090GRID_V4R4/ | |
| podaac-ops-cumulus-public/ECCO_L4_OCEAN_3D_MIX_COEFFS_LLC0090GRID_V4R4/ | |
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| Name | Long Name | Unit |
|---|---|---|
| DIFFKR | Vertical diffusivity | m2 s-1 |
| i | grid index in x for variables at tracer and 'v' locations | |
| i_g | grid index in x for variables at 'u' and 'g' locations | |
| j | grid index in y for variables at tracer and 'u' locations | |
| j_g | grid index in y for variables at 'v' and 'g' locations | |
| k | grid index in z for tracer variables | |
| k_l | grid index in z corresponding to the top face of tracer grid cells ('w' locations) | |
| k_p1 | grid index in z for variables at 'w' locations | |
| k_u | grid index in z corresponding to the bottom face of tracer grid cells ('w' locations) | |
| KAPGM | Gent-McWilliams diffusivity | m2 s-1 |
| KAPREDI | Along-isopycnal diffusivity | m2 s-1 |
| tile | lat-lon-cap tile index | |
| XC | longitude of tracer grid cell center | degrees_east |
| XC_bnds | longitudes of tracer grid cell corners | |
| XG | longitude of 'southwest' corner of tracer grid cell | degrees_east |
| YC | latitude of tracer grid cell center | degrees_north |
| YC_bnds | latitudes of tracer grid cell corners | |
| YG | latitude of 'southwest' corner of tracer grid cell | degrees_north |
| Z | depth of tracer grid cell center | m |
| Z_bnds | depths of top and bottom faces of tracer grid cell | |
| Zl | depth of top face of tracer grid cell | m |
| Zp1 | depth of top/bottom face of tracer grid cell | m |
| Zu | depth of bottom face of tracer grid cell | m |
Citation is critically important for dataset documentation and discovery. Please cite the data as follows, and cite the reference papers when it is appropriate.
| Citation | ECCO Consortium, Fukumori, I., Wang, O., Fenty, I., Forget, G., Heimbach, P., & Ponte, R. M.. 2021. ECCO Ocean 3D Gent-Mcwilliams, Redi, and Background Vertical Diffusivity Coefficients for the Lat-Lon-Cap 90 (llc90) Native Model Grid (Version 4 Release 4). Ver. V4r4. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/ECL5A-MIX44
For more information see Data Citations and Acknowledgments.
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| Journal Reference | ECCO Consortium, Fukumori, I., Wang, O., Fenty, I., Forget, G., Heimbach, P., & Ponte, R. M.. 2021. Synopsis of the ECCO Central Production Global Ocean and Sea-Ice State Estimate (Version 4 Release 4)., Zenodo. https://doi.org/10.5281/zenodo.3765928 |
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