Circum-Antarctic shoreward heat fluxes derived from eddy- and tide-resolving simulation
Statement: The LLC_4320 simulation was conducted using the MIT general circulation model [Marshall et al., 1997a,b] on a global Latitude-Longitude-Cap (LLC) grid [Forget et al., 2015] with 1/48 degree horizontal grid spacing and 90 vertical levels. The horizontal grid spacing is less than 1 km over...
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University of Tasmania, Australia
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Online Access: | https://doi.org/10.4226/77/5a37035ea15b2 https://researchdata.edu.au/circum-antarctic-shoreward-resolving-simulation/1728867 |
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ftands:oai:ands.org.au::1728867 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
oceans EARTH SCIENCE | OCEANS | OCEAN CIRCULATION | OCEAN CURRENTS OCEANOGRAPHY EARTH SCIENCES Geophysical Fluid Dynamics GEOPHYSICS Physical Oceanography vertical coordinate of center of cell vertical coordinate of face of cell Cell center separation along Z axis Cell face separation along Z axis vertical profile of reference density longitude East of center of grid cell longitude East of southwest corner of grid cell latitude North of center of grid cell latitude North of southwest corner of grid cell Cell center separation in X across western cell wall Cell face separation in X along southern cell wall Cell center separation in Y across southern cell wal Cell face separation in Y along western cell wall Model bathymetry cosine(alpha) relative to geographic direction at grid cell center sine(alpha) relative to geographic direction at grid cell center mask of tracer cell mask of v cell mask of u cell Elevation of bottom of lowest model grid cell at tracer points Elevation of bottom of lowest model grid cell at u-points Elevation of bottom of lowest model grid cell at v-points averaged zonal (relative to grid) velocity averaged merid. (relative to grid) velocity averaged vertical velocity averaged potential temperature averaged advective potential temperature flux due to u averaged advective potential temperature flux due to v averaged advective potential temperature flux due to w averaged salinity averaged advective salt flux due to u averaged advective salt due to v averaged advective salt flux due to w averaged of u^2 averaged of v^2 averaged of w^2 |
spellingShingle |
oceans EARTH SCIENCE | OCEANS | OCEAN CIRCULATION | OCEAN CURRENTS OCEANOGRAPHY EARTH SCIENCES Geophysical Fluid Dynamics GEOPHYSICS Physical Oceanography vertical coordinate of center of cell vertical coordinate of face of cell Cell center separation along Z axis Cell face separation along Z axis vertical profile of reference density longitude East of center of grid cell longitude East of southwest corner of grid cell latitude North of center of grid cell latitude North of southwest corner of grid cell Cell center separation in X across western cell wall Cell face separation in X along southern cell wall Cell center separation in Y across southern cell wal Cell face separation in Y along western cell wall Model bathymetry cosine(alpha) relative to geographic direction at grid cell center sine(alpha) relative to geographic direction at grid cell center mask of tracer cell mask of v cell mask of u cell Elevation of bottom of lowest model grid cell at tracer points Elevation of bottom of lowest model grid cell at u-points Elevation of bottom of lowest model grid cell at v-points averaged zonal (relative to grid) velocity averaged merid. (relative to grid) velocity averaged vertical velocity averaged potential temperature averaged advective potential temperature flux due to u averaged advective potential temperature flux due to v averaged advective potential temperature flux due to w averaged salinity averaged advective salt flux due to u averaged advective salt due to v averaged advective salt flux due to w averaged of u^2 averaged of v^2 averaged of w^2 Circum-Antarctic shoreward heat fluxes derived from eddy- and tide-resolving simulation |
topic_facet |
oceans EARTH SCIENCE | OCEANS | OCEAN CIRCULATION | OCEAN CURRENTS OCEANOGRAPHY EARTH SCIENCES Geophysical Fluid Dynamics GEOPHYSICS Physical Oceanography vertical coordinate of center of cell vertical coordinate of face of cell Cell center separation along Z axis Cell face separation along Z axis vertical profile of reference density longitude East of center of grid cell longitude East of southwest corner of grid cell latitude North of center of grid cell latitude North of southwest corner of grid cell Cell center separation in X across western cell wall Cell face separation in X along southern cell wall Cell center separation in Y across southern cell wal Cell face separation in Y along western cell wall Model bathymetry cosine(alpha) relative to geographic direction at grid cell center sine(alpha) relative to geographic direction at grid cell center mask of tracer cell mask of v cell mask of u cell Elevation of bottom of lowest model grid cell at tracer points Elevation of bottom of lowest model grid cell at u-points Elevation of bottom of lowest model grid cell at v-points averaged zonal (relative to grid) velocity averaged merid. (relative to grid) velocity averaged vertical velocity averaged potential temperature averaged advective potential temperature flux due to u averaged advective potential temperature flux due to v averaged advective potential temperature flux due to w averaged salinity averaged advective salt flux due to u averaged advective salt due to v averaged advective salt flux due to w averaged of u^2 averaged of v^2 averaged of w^2 |
description |
Statement: The LLC_4320 simulation was conducted using the MIT general circulation model [Marshall et al., 1997a,b] on a global Latitude-Longitude-Cap (LLC) grid [Forget et al., 2015] with 1/48 degree horizontal grid spacing and 90 vertical levels. The horizontal grid spacing is less than 1 km over the entire Antarctic continental shelf and slope, with the exception of the tip of the Antarctic Peninsula, which is sufficient to simulate shoreward heat transfer by eddies [St-Laurent et al., 2013; Stewart and Thompson, 2015b]. The model includes the 16 largest-amplitude tidal components globally and partially resolves the internal wave spectrum [Rocha et al., 2016] and thus cross-slope excursions associated with baroclinic tides [Padman et al., 2009]. The LLC_4320 simulation is not directly constrained by observational data, but is a high-resolution continuation of the ECCO2 0.14 degree reanalysis product. The simulation spans September 2011–October 2012, and derives surface fluxes from ECMWF 1/6 degree operational analysis [ECMWF, 2011] combined with an annual climatology of continental runoff [Fekete et al., 2002]. An identically configured simulation was run using 1/24 degree horizontal grid spacing, spanning January 2011 – April 2013, and is referred to as LLC_2160. The model configuration files to understand the model grid layout, integration procedure, parameters etc can be found at http://wwwcvs.mitgcm.org/viewvc/MITgcm/MITgcm_contrib/llc_hires/llc_4320/. The data are stored in .mat files separated by LLC face number (1, 2, 4 or 5), grid resolution (LLC2160 vs LLC4320), and averaging procedure (averaging all 6-hour snapshots together, '_6hsnapshots', or first averaging 6-hour snapshots into days and then averaging the days, '_dailyavg6h'). The LLC2160 model output is averaged from 03/06/2011 to 04/22/2013 (model time step 92160 to 1586400), while the LLC4320 output is averaged from 09/12/2011 to 11/15/2012 (model time step 10368 to 1495008). Statement: Each file contains the MITgcm grid vectors and ... |
author2 |
IMAS Data Manager (publisher) Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) (hasAssociationWith) Klocker, Andreas (pointOfContact) Klocker, Andreas (collaborator) Klocker, Andreas (author) Stewart, Andrew (hasPrincipalInvestigator) University of California Los Angeles (UCLA) (hasAssociationWith) |
format |
Dataset |
title |
Circum-Antarctic shoreward heat fluxes derived from eddy- and tide-resolving simulation |
title_short |
Circum-Antarctic shoreward heat fluxes derived from eddy- and tide-resolving simulation |
title_full |
Circum-Antarctic shoreward heat fluxes derived from eddy- and tide-resolving simulation |
title_fullStr |
Circum-Antarctic shoreward heat fluxes derived from eddy- and tide-resolving simulation |
title_full_unstemmed |
Circum-Antarctic shoreward heat fluxes derived from eddy- and tide-resolving simulation |
title_sort |
circum-antarctic shoreward heat fluxes derived from eddy- and tide-resolving simulation |
publisher |
University of Tasmania, Australia |
url |
https://doi.org/10.4226/77/5a37035ea15b2 https://researchdata.edu.au/circum-antarctic-shoreward-resolving-simulation/1728867 |
op_coverage |
Spatial: westlimit=-180; southlimit=-80.00; eastlimit=-180; northlimit=-60.00 Spatial: uplimit=7000; downlimit=0 Temporal: From 2011-03-06 to 2012-11-15 |
geographic |
Antarctic The Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_source |
University of California Los Angeles (UCLA) Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) |
op_relation |
https://researchdata.edu.au/circum-antarctic-shoreward-resolving-simulation/1728867 99ccd395-af52-4a36-bca4-edd7991435bd doi:10.4226/77/5a37035ea15b2 https://doi.org/10.4226/77/5a37035ea15b2 |
op_doi |
https://doi.org/10.4226/77/5a37035ea15b2 |
_version_ |
1784259546454163456 |
spelling |
ftands:oai:ands.org.au::1728867 2023-12-03T10:12:55+01:00 Circum-Antarctic shoreward heat fluxes derived from eddy- and tide-resolving simulation IMAS Data Manager (publisher) Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) (hasAssociationWith) Klocker, Andreas (pointOfContact) Klocker, Andreas (collaborator) Klocker, Andreas (author) Stewart, Andrew (hasPrincipalInvestigator) University of California Los Angeles (UCLA) (hasAssociationWith) Spatial: westlimit=-180; southlimit=-80.00; eastlimit=-180; northlimit=-60.00 Spatial: uplimit=7000; downlimit=0 Temporal: From 2011-03-06 to 2012-11-15 https://doi.org/10.4226/77/5a37035ea15b2 https://researchdata.edu.au/circum-antarctic-shoreward-resolving-simulation/1728867 unknown University of Tasmania, Australia https://researchdata.edu.au/circum-antarctic-shoreward-resolving-simulation/1728867 99ccd395-af52-4a36-bca4-edd7991435bd doi:10.4226/77/5a37035ea15b2 https://doi.org/10.4226/77/5a37035ea15b2 University of California Los Angeles (UCLA) Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) oceans EARTH SCIENCE | OCEANS | OCEAN CIRCULATION | OCEAN CURRENTS OCEANOGRAPHY EARTH SCIENCES Geophysical Fluid Dynamics GEOPHYSICS Physical Oceanography vertical coordinate of center of cell vertical coordinate of face of cell Cell center separation along Z axis Cell face separation along Z axis vertical profile of reference density longitude East of center of grid cell longitude East of southwest corner of grid cell latitude North of center of grid cell latitude North of southwest corner of grid cell Cell center separation in X across western cell wall Cell face separation in X along southern cell wall Cell center separation in Y across southern cell wal Cell face separation in Y along western cell wall Model bathymetry cosine(alpha) relative to geographic direction at grid cell center sine(alpha) relative to geographic direction at grid cell center mask of tracer cell mask of v cell mask of u cell Elevation of bottom of lowest model grid cell at tracer points Elevation of bottom of lowest model grid cell at u-points Elevation of bottom of lowest model grid cell at v-points averaged zonal (relative to grid) velocity averaged merid. (relative to grid) velocity averaged vertical velocity averaged potential temperature averaged advective potential temperature flux due to u averaged advective potential temperature flux due to v averaged advective potential temperature flux due to w averaged salinity averaged advective salt flux due to u averaged advective salt due to v averaged advective salt flux due to w averaged of u^2 averaged of v^2 averaged of w^2 dataset ftands https://doi.org/10.4226/77/5a37035ea15b2 2023-11-06T23:43:39Z Statement: The LLC_4320 simulation was conducted using the MIT general circulation model [Marshall et al., 1997a,b] on a global Latitude-Longitude-Cap (LLC) grid [Forget et al., 2015] with 1/48 degree horizontal grid spacing and 90 vertical levels. The horizontal grid spacing is less than 1 km over the entire Antarctic continental shelf and slope, with the exception of the tip of the Antarctic Peninsula, which is sufficient to simulate shoreward heat transfer by eddies [St-Laurent et al., 2013; Stewart and Thompson, 2015b]. The model includes the 16 largest-amplitude tidal components globally and partially resolves the internal wave spectrum [Rocha et al., 2016] and thus cross-slope excursions associated with baroclinic tides [Padman et al., 2009]. The LLC_4320 simulation is not directly constrained by observational data, but is a high-resolution continuation of the ECCO2 0.14 degree reanalysis product. The simulation spans September 2011–October 2012, and derives surface fluxes from ECMWF 1/6 degree operational analysis [ECMWF, 2011] combined with an annual climatology of continental runoff [Fekete et al., 2002]. An identically configured simulation was run using 1/24 degree horizontal grid spacing, spanning January 2011 – April 2013, and is referred to as LLC_2160. The model configuration files to understand the model grid layout, integration procedure, parameters etc can be found at http://wwwcvs.mitgcm.org/viewvc/MITgcm/MITgcm_contrib/llc_hires/llc_4320/. The data are stored in .mat files separated by LLC face number (1, 2, 4 or 5), grid resolution (LLC2160 vs LLC4320), and averaging procedure (averaging all 6-hour snapshots together, '_6hsnapshots', or first averaging 6-hour snapshots into days and then averaging the days, '_dailyavg6h'). The LLC2160 model output is averaged from 03/06/2011 to 04/22/2013 (model time step 92160 to 1586400), while the LLC4320 output is averaged from 09/12/2011 to 11/15/2012 (model time step 10368 to 1495008). Statement: Each file contains the MITgcm grid vectors and ... Dataset Antarc* Antarctic Antarctic Peninsula Research Data Australia (Australian National Data Service - ANDS) Antarctic The Antarctic Antarctic Peninsula |