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Ensemble of HYCOM simulations of the Gulf of Mexico to study uncertainties stemming from uncertain initial conditions using the Polynomial Chaos approach

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

DOI:
10.7266/N77H1GNF
 
UDI:
R4.x265.000:0009
Last Update:
Jun 08 2017 15:58 UTC
 
Dataset Author(s):
Matthieu Le Hénaff
Point of Contact:
Iskandarani, Mohamed
University of Miami / Rosenstiel School of Marine and Atmospheric Science
4600 Rickenbacker Cswy
Miami, Florida  33149
USA
miskandarani@rsmas.miami.edu
Funding Source:
RFP-IV
Data Collection Period:
2010-05-01 to 2010-06-30

Identified Submitted Metadata Available
3 3 3 3

Abstract:

The 49 simulations forming the ensemble have been performed using the HYbrid Coordinate Ocean Model (HYCOM's web page can be found at http://www.hycom.org). The ensemble members differ in their initial conditions, which are perturbed to specifically isolate the uncertain signature of a cyclonic frontal eddy along the northern edge of the Loop Current. The Loop Current is the dominant dynamical feature in the Gulf of Mexico, and frontal eddies are known to affect the Loop Current pathway, and to play a role in the shedding of anticyclonic Loop Current Eddies. The data uploaded contain the daily model state for each member and cover the period May 1 to June 30, 2010.

Purpose:

The ensemble of HYCOM simulations of the Gulf of Mexico was generated to quantify uncertainties stemming from uncertain initial conditions using the Polynomial Chaos approach.

Theme Keywords:

Ocean Modeling, Uncertainty Quantification, Sensitivity Analysis, Deepwater Horizon

File Format:

netCDF

Ensemble of HYCOM simulations of the Gulf of Mexico to study uncertainties stemming from uncertain initial conditions using the Polynomial Chaos approach



Identification Information
Distribution Information
Metadata Maintenance Information

Metadata: 
  File identifier: 
      R4.x265.000-0009-metadata.xml
  Language: 
      eng; USA
  Character set: 
    Character set code: 
      utf8
  Hierarchy level: 
    Scope code: 
      dataset
  Metadata author: 
    Responsible party: 
      Individual name: 
          Mohamed Iskandarani
      Organisation name: 
          University of Miami / Rosenstiel School of Marine and Atmospheric Science
      Position name: 
          Professor
      Contact info: 
        Contact: 
          Phone: 
            Telephone: 
              Voice: 
                  3054214045
              Facsimile: 
          Address: 
            Address: 
              Delivery point: 
                  4600 Rickenbacker Cswy
              City: 
                  Miami
              Administrative area: 
                  Florida
              Postal code: 
                  33149
              Country: 
                  USA
              Electronic mail address: 
                  miskandarani@rsmas.miami.edu
      Role: 
        Role code: 
          pointOfContact
  Date stamp: 
      2017-06-09T21:02:50+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.x265.000:0009
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Identification info: Data identification: Citation: Citation: Title: Ensemble of HYCOM simulations of the Gulf of Mexico to study uncertainties stemming from uncertain initial conditions using the Polynomial Chaos approach Alternate title: Date: Date: Date: 2016-11-30 Date type: Date type code: publication Abstract: The 49 simulations forming the ensemble have been performed using the HYbrid Coordinate Ocean Model (HYCOM's web page can be found at http://www.hycom.org). The ensemble members differ in their initial conditions, which are perturbed to specifically isolate the uncertain signature of a cyclonic frontal eddy along the northern edge of the Loop Current. The Loop Current is the dominant dynamical feature in the Gulf of Mexico, and frontal eddies are known to affect the Loop Current pathway, and to play a role in the shedding of anticyclonic Loop Current Eddies. The data uploaded contain the daily model state for each member and cover the period May 1 to June 30, 2010. Purpose: The ensemble of HYCOM simulations of the Gulf of Mexico was generated to quantify uncertainties stemming from uncertain initial conditions using the Polynomial Chaos approach. Status: Progress code: completed Point of contact: Responsible party: Individual name: Mohamed Iskandarani Organisation name: University of Miami / Rosenstiel School of Marine and Atmospheric Science Position name: Professor Contact info: Contact: Phone: Telephone: Voice: 3054214045 Facsimile: Address: Address: Delivery point: 4600 Rickenbacker Cswy City: Miami Administrative area: Florida Postal code: 33149 Country: USA Electronic mail address: miskandarani@rsmas.miami.edu Role: Role code: pointOfContact Descriptive keywords: Keywords: Keyword: Ocean Modeling Keyword: Uncertainty Quantification Keyword: Sensitivity Analysis Keyword: Deepwater Horizon 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 East bound longitude: -76.4 South bound latitude: 18.0916 North bound latitude: 31.9606 Geographic element: BoundingPolygon: Polygon: Polygon: Outer boundary: Linear ring: gml:posList: 18.0916 -76.4 31.9606 -76.4 31.9606 -98 18.0916 -98 18.0916 -76.4 Temporal element: Temporal extent: Extent: Time period: Description: modeled period Begin date: 2010-05-01 End date: 2010-06-30 Supplemental Information: The configuration of HYCOM adopted here is similar to the experiment 20.1 used operationally by the US Navy for ocean prediction during the period 2003–2010 (see https://hycom.org/data/goml0pt04/expt-20pt1 for more details). The model has a 1/25° (~4 km) horizontal resolution and 20 vertical levels. The computational domain is open along portions of its southern, eastern and northern boundaries, where values are provided by a lower-resolution (1/12◦ vs. 1/25◦) simulation of HYCOM configured for the Atlantic Ocean. The model is forced at the surface by three hourly outputs from the Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMP), which has a 27-km resolution. For the present study, model simulations are run for 2 months, from May 1 to June 29, 2010. Each model output is the daily averaged, centered at 12 noon, of the date corresponding to the file name (e.g. archm.2010_121_12.cdf is the file corresponding to the 121st day of the year 2010). Each file includes the coordinates of the grid in terms of latitude, longitude, as well as the following 2D and 3D variables: - 2D variables: Montgomery potential (non-dimensional), sea surface height (meter), zonal and meridional barotropic currents (m/s). - 3D variables: temperature (deg C), salinity (psu), zonal and meridional currents (m/s), layer thickness (meter).
          
The HYCOM model uses a hybrid vertical grid, with some layers being isopycnal and defined by their potential density referenced to the surface. However, the model outputs only provide layer thicknesses (in meter). The depth of a layer can be estimated by summing the layer thicknesses from the surface down to the corresponding layer. The files are in NetCDF format.|||||
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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: tar Distributor transfer options: Digital transfer options: Transfer size: 144617.2883 Online: Online Resource: Linkage: URL: https://data.gulfresearchinitiative.org/data/R4.x265.000:0009 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.x265.000:0009 on 2017-06-09T17:41:26+00:00
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