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HYCOM 1 km resolution surface fields of the Gulf of Mexico for January-March 2010

Consortium for Advanced Research on Transport of Hydrocarbon in the Environment II (CARTHE II)

DOI:
10.7266/N7BC3WJC
 
UDI:
R4.x265.000:0004
Last Update:
Feb 18 2017 16:04 UTC
 
Dataset Author(s):
Patrick Hogan, Angelique Haza, Tamay Özgökmen
Point of Contact:
Haza, Angelique C.
University of Miami / Rosenstiel School of Marine and Atmospheric Science
4600 Rickenbacker Causeway
Miami, Florida  33149
USA
ahaza@rsmas.miami.edu
Funding Source:
RFP-IV
Data Collection Period:
2010-01-01 to 2010-03-31

Identified Submitted Metadata Available
3 3 3 3

Abstract:

The HYbrid Coordinate Ocean Model (HYCOM) is configured for the entire Gulf of Mexico. HYCOM uses isopycnal coordinates in the deep stratified ocean, pressure coordinates in unstratified regions including the mixed layer, and terrain-following coordinates in shallow coastal regions. The simulation has 20 layers in the vertical and 1/100 degree horizontal resolution. The flow is forced by six-hourly Navy Operational Global Atmospheric Prediction System (NOGAPS) surface winds and heat fluxes. Cyclic boundary conditions south of the Yucatan Channel and in the Florida Straits are provided by a synoptically-forced 1/12 degree Atlantic HYCOM configured for much of the Atlantic Ocean, from 30S to 70N. The results from this larger domain simulation are obtained for years 1999-2002 and binned into monthly values to create a perpetual forcing and boundary conditions for the Gulf of Mexico inner domain. Rivers are represented by point sources forced towards monthly climatological freshwater inflows. Further details of the model configuration can be found in Prasad and Hogan (2007). The k-Profile parameterization (KPP; Large et al., 1994) is used to invoke vertical mixing. The model was run over 2010 and demonstrates dynamically-realistic behavior. In particular, the simulation generates a number of cyclones that tend to orbit around the anticyclonic Loop Current Eddies. The cyclones and anticyclones seldom cross the shelf break front in the northern Gulf of Mexico, although filaments associated with baroclinically-unstable eddies do generate cross-shelf exchange and interact with largely barotropic flows that tend to follow the shelf break front. Loop Current eddy shedding and wind-driven upwelling near the Yucatan Peninsula seem to be generally consistent with observations (Morey et al., 2003; Walker et al., 2005; Sturges et al., 2005), although they occur non-contemporaneously because of lack of data assimilation.

Purpose:

The model outputs are used to analyze the mesoscale-submesoscale interaction in the context of Lagrangian transport in (see Impact of Submesoscales on Surface Material Distribution in a Gulf of Mexico Mesoscale Eddy, Haza et al., 2016). The requirements of this HYCOM simulation are that: (a) the model has enough numerical resolution to capture some of the submesoscale mixed layer instabilities, and (b) the flow field contains one of the so-called ``Star Eddies" (Ozgokmen et al., 2012) so that the influence of submesoscales on surface material fluxes across mesoscale material boundaries in elliptic coherent features can be assessed.

Theme Keywords:

Model, Ocean, currents, temperature, salinity

File Format:

NetCDF

Dataset Downloads:

0

HYCOM 1 km resolution surface fields of the Gulf of Mexico for January-March 2010



Identification Information
Distribution Information
Metadata Maintenance Information

Metadata: 
  File identifier: 
      R4.x265.000-0004-metadata.xml
  Language: 
      eng; USA
  Character set: 
    Character set code: 
      utf8
  Hierarchy level: 
    Scope code: 
      dataset
  Metadata author: 
    Responsible party: 
      Individual name: 
          Angelique C. Haza
      Organisation name: 
          University of Miami / Rosenstiel School of Marine and Atmospheric Science
      Position name: 
          Associate Scientist
      Contact info: 
        Contact: 
          Phone: 
            Telephone: 
              Voice: 
                  3054214657
              Facsimile: 
          Address: 
            Address: 
              Delivery point: 
                  4600 Rickenbacker Causeway
              City: 
                  Miami
              Administrative area: 
                  Florida
              Postal code: 
                  33149
              Country: 
                  USA
              Electronic mail address: 
                  ahaza@rsmas.miami.edu
      Role: 
        Role code: 
          pointOfContact
  Date stamp: 
      2017-03-14T15:39:20+00:00
  Metadata standard name: 
      ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
  Metadata standard version: 
      ISO 19115-2:2009(E)
  Dataset URI: 
      https://data.gulfresearchinitiative.org/metadata/R4.x265.000:0004
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Identification info: Data identification: Citation: Citation: Title: HYCOM 1 km resolution surface fields of the Gulf of Mexico for January-March 2010 Alternate title: Date: Date: Date: 2016-10-16 Date type: Date type code: publication Abstract: The HYbrid Coordinate Ocean Model (HYCOM) is configured for the entire Gulf of Mexico. HYCOM uses isopycnal coordinates in the deep stratified ocean, pressure coordinates in unstratified regions including the mixed layer, and terrain-following coordinates in shallow coastal regions. The simulation has 20 layers in the vertical and 1/100 degree horizontal resolution. The flow is forced by six-hourly Navy Operational Global Atmospheric Prediction System (NOGAPS) surface winds and heat fluxes. Cyclic boundary conditions south of the Yucatan Channel and in the Florida Straits are provided by a synoptically-forced 1/12 degree Atlantic HYCOM configured for much of the Atlantic Ocean, from 30S to 70N. The results from this larger domain simulation are obtained for years 1999-2002 and binned into monthly values to create a perpetual forcing and boundary conditions for the Gulf of Mexico inner domain. Rivers are represented by point sources forced towards monthly climatological freshwater inflows. Further details of the model configuration can be found in Prasad and Hogan (2007). The k-Profile parameterization (KPP; Large et al., 1994) is used to invoke vertical mixing. The model was run over 2010 and demonstrates dynamically-realistic behavior. In particular, the simulation generates a number of cyclones that tend to orbit around the anticyclonic Loop Current Eddies. The cyclones and anticyclones seldom cross the shelf break front in the northern Gulf of Mexico, although filaments associated with baroclinically-unstable eddies do generate cross-shelf exchange and interact with largely barotropic flows that tend to follow the shelf break front. Loop Current eddy shedding and wind-driven upwelling near the Yucatan Peninsula seem to be generally consistent with observations (Morey et al., 2003; Walker et al., 2005; Sturges et al., 2005), although they occur non-contemporaneously because of lack of data assimilation. Purpose: The model outputs are used to analyze the mesoscale-submesoscale interaction in the context of Lagrangian transport in (see Impact of Submesoscales on Surface Material Distribution in a Gulf of Mexico Mesoscale Eddy, Haza et al., 2016). The requirements of this HYCOM simulation are that: (a) the model has enough numerical resolution to capture some of the submesoscale mixed layer instabilities, and (b) the flow field contains one of the so-called ``Star Eddies" (Ozgokmen et al., 2012) so that the influence of submesoscales on surface material fluxes across mesoscale material boundaries in elliptic coherent features can be assessed. Status: Progress code: completed Point of contact: Responsible party: Individual name: Angelique C. Haza Organisation name: University of Miami / Rosenstiel School of Marine and Atmospheric Science Position name: Associate Scientist Contact info: Contact: Phone: Telephone: Voice: 3054214657 Facsimile: Address: Address: Delivery point: 4600 Rickenbacker Causeway City: Miami Administrative area: Florida Postal code: 33149 Country: USA Electronic mail address: ahaza@rsmas.miami.edu Role: Role code: pointOfContact Descriptive keywords: Keywords: Keyword: Model Keyword: Ocean Keyword: currents Keyword: temperature Keyword: salinity Type: Keyword type code: theme Descriptive keywords: Keywords: Keyword: Gulf of Mexico Type: Keyword type code: place Language: eng; USA Topic category: Topic category code: oceans Extent: Extent: Geographic element: Geographic bounding box: West bound longitude: -98.08594 East bound longitude: -80.02441 South bound latitude: 17.01477 North bound latitude: 30.18312 Geographic element: BoundingPolygon: Polygon: Polygon: Outer boundary: Linear ring: gml:posList: 17.01477 -97.99805 17.05678 -80.11231 30.10712 -80.02441 30.18312 -98.08594 17.01477 -97.99805 Temporal element: Temporal extent: Extent: Time period: Description: modeled period Begin date: 2010-01-01 End date: 2010-03-31 Supplemental Information: MT = days since 1900-12-31 00:00:00 Latitude in degrees North Longitude in degrees East Date (%Y%m%d.%f) Mixed layer thickness (m) Sea surface salinity (psu) Sea surface height (m) Eastward sea water velocity (u, m/s) Northward sea water velocity (v, m/s) Sea surface temperature (sst, deg C) The output data sets consist of atmospheric forcing in MKS units. Heat flux is positive into the ocean. The output files consist of the COADS fields interpolated to the HYCOM grid in HYCOM 2.1 array “.a” and header “.b” format.|||||Bleck, R.: An oceanic general circulation model framed in hybrid isopycnic-Cartesian coordinates, Ocean Modeling, 4, 55-88, doi: 10.1016/S1463-5003(01)00012-9, 2002.
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Distribution info: Distribution: Distributor: Distributor: Distributor contact: Responsible party: Organisation name: Gulf of Mexico Research Initiative Information and Data Cooperative (GRIIDC) Contact info: Contact: Phone: Telephone: Voice: +1-361-825-3604 Facsimile: +1-361-825-2050 Address: Address: Delivery point: 6300 Ocean Drive Unit 5869 City: Corpus Christi Administrative area: Texas Postal code: 78412-5869 Country: USA Electronic mail address: griidc@gomri.org Online Resource: Online Resource: Linkage: URL: https://data.gulfresearchinitiative.org Role: Role code: distributor Distributor format: Format: Name: NetCDF Version: inapplicable File decompression technique: gzip, tar Distributor transfer options: Digital transfer options: Transfer size: 35539.554 Online: Online Resource: Linkage: URL: https://data.gulfresearchinitiative.org/data/R4.x265.000:0004 Protocol: https
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Metadata maintenance: Maintenance information: Maintenance and update frequency: unknown Maintenance note: This ISO metadata record was automatically generated from information provided to GRIIDC for dataset: R4.x265.000:0004 on 2017-02-20T15:17:41+00:00
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