Data

Bluelink Reanalysis Version 2.1

Australian Ocean Data Network
CSIRO O&A, Information & Data Centre (Point of contact) Oke, Peter (Point of contact)
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://marlin.csiro.au/geonetwork/srv/eng/catalog.search#/metadata/40e63f98-6dd1-489d-9ebe-6ae2bc9bafe4&rft.title=Bluelink Reanalysis Version 2.1&rft.identifier=Anzlic Identifier: ANZCW0306007831&rft.publisher=Australian Ocean Data Network&rft.description=OFAM is based on version 4.0d of the Modular Ocean Model, using a hybrid mixed layer model. The horizontal grid has 1191 and 968 points in the zonal and meridional directions respectively; with 1/10 degree horizontal resolution around Australia (90-180E, south of 17). Outside of this domain, the horizontal resolution decreases to 0.9 degrees across the Pacific and Indian basins (to 10E, 60W and 40N) and to 2 degrees in the Atlantic Ocean. OFAM has 47 vertical levels, with 10 m resolution down to 200 m depth. The topography for OFAM is a composite of topography sources including dbdb2 and GEBCO. Horizontal diffusion is zero. Horizontal viscosity is resolution and state-dependent according to the Smagorinsky viscosity scheme (Griffies and Hallberg 2000). BRAN is a multi-year integration of OFAM that assimilates observations using an ensemble optimal interpolation (EnOI) scheme that uses a stationary ensemble of intraseasonal model anomalies, obtained from a non-assimilating model run. Observations include along-track SLA (atSLA) from altimeters and tide gauges, in situ T and S observations and satellite SST.Progress Code: completedMaintenance and Update Frequency: asNeededStatement: - Assimilates along-track SLA, in situ T & S, AMSRE or Pathfinder SST - Seasonal climatological river fluxes. - SSS restoring (30 days in deep water only); no SST restoring. - ECMWF surface heat and freshwater fluxes; and momentum fluxes from 10 m winds. - 7 day assimilation cycle with 1 day nudging using 0.5-1 day relaxation. - Updates T, S and eta via nudging over max(1-day, local inertial period). - Fields are smooth, realistic, but under-fit observations.&rft.creator=Anonymous&rft.date=2008&rft.coverage=westlimit=-180; southlimit=-90; eastlimit=180; northlimit=90&rft.coverage=westlimit=-180; southlimit=-90; eastlimit=180; northlimit=90&rft_rights=Version 2.1 (BRAN2.1) of our BRAN hindcast of ocean conditions for the 1992-2006 period is now freely available for research use. The restriction to 'research use' is necessary because i) some of the data going into BRAN is only for research use, and ii) the complexity and size (10 Terabytes) of BRAN is such that its accuracy is both highly variable, and difficult to determine in a general sense.&rft_subject=oceans&rft_subject=Earth Science | Oceans | Ocean Circulation | Eddies&rft_subject=Earth Science | Oceans | Ocean Circulation | Fronts&rft_subject=Earth Science | Oceans | Ocean Circulation | Gyres&rft_subject=Earth Science | Oceans | Ocean Circulation | Ocean Currents&rft_subject=Earth Science | Oceans | Ocean Circulation | Ocean Mixed Layer&rft_subject=Earth Science | Oceans | Ocean Circulation | Turbulence&rft_subject=Earth Science | Oceans | Ocean Circulation | Water Masses&rft_subject=Earth Science | Oceans | Ocean Temperature | Sea Surface Temperature&rft_subject=Earth Science | Oceans | Ocean Temperature | Water Temperature&rft_subject=Earth Science | Oceans | Salinity/Density | Salinity&rft_subject=Global / Oceans | World&rft.type=dataset&rft.language=English Access the data
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Version 2.1 (BRAN2.1) of our BRAN hindcast of ocean conditions for the 1992-2006 period is now freely available for research use. The restriction to 'research use' is necessary because i) some of the data going into BRAN is only for research use, and ii) the complexity and size (10 Terabytes) of BRAN is such that its accuracy is both highly variable, and difficult to determine in a general sense.

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Brief description

OFAM is based on version 4.0d of the Modular Ocean Model, using a hybrid mixed layer model. The horizontal grid has 1191 and 968 points in the zonal and meridional directions respectively; with 1/10 degree horizontal resolution around Australia (90-180E, south of 17). Outside of this domain, the horizontal resolution decreases to 0.9 degrees across the Pacific and Indian basins (to 10E, 60W and 40N) and to 2 degrees in the Atlantic Ocean. OFAM has 47 vertical levels, with 10 m resolution down to 200 m depth. The topography for OFAM is a composite of topography sources including dbdb2 and GEBCO. Horizontal diffusion is zero. Horizontal viscosity is resolution and state-dependent according to the Smagorinsky viscosity scheme (Griffies and Hallberg 2000). BRAN is a multi-year integration of OFAM that assimilates observations using an ensemble optimal interpolation (EnOI) scheme that uses a stationary ensemble of intraseasonal model anomalies, obtained from a non-assimilating model run. Observations include along-track SLA (atSLA) from altimeters and tide gauges, in situ T and S observations and satellite SST.

Lineage

Progress Code: completed
Maintenance and Update Frequency: asNeeded
Statement: - Assimilates along-track SLA, in situ T & S, AMSRE or Pathfinder SST - Seasonal climatological river fluxes. - SSS restoring (30 days in deep water only); no SST restoring. - ECMWF surface heat and freshwater fluxes; and momentum fluxes from 10 m winds. - 7 day assimilation cycle with 1 day nudging using 0.5-1 day relaxation. - Updates T, S and eta via nudging over max(1-day, local inertial period). - Fields are smooth, realistic, but under-fit observations.

Notes

Credit
Peter Oke
Credit
Russ Fiedler
Credit
Andreas Schiller
Credit
David Griffin
Credit
Garry Brassington

Data time period: 1992-10 to 2006-12

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text: westlimit=-180; southlimit=-90; eastlimit=180; northlimit=90

Subjects
Earth Science | Oceans | Ocean Circulation | Eddies | Earth Science | Oceans | Ocean Circulation | Fronts | Earth Science | Oceans | Ocean Circulation | Gyres | Earth Science | Oceans | Ocean Circulation | Ocean Currents | Earth Science | Oceans | Ocean Circulation | Ocean Mixed Layer | Earth Science | Oceans | Ocean Circulation | Turbulence | Earth Science | Oceans | Ocean Circulation | Water Masses | Earth Science | Oceans | Ocean Temperature | Sea Surface Temperature | Earth Science | Oceans | Ocean Temperature | Water Temperature | Earth Science | Oceans | Salinity/Density | Salinity | Global / Oceans | World | oceans |

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Other Information
Bluelink Reanalysis Home Page (Documentation Link)

uri : https://www.marine.csiro.au/staff/oke/BRAN.htm

Identifiers
  • Local : Anzlic Identifier: ANZCW0306007831
  • Local : Marlin Record Number: 7831
  • global : 40e63f98-6dd1-489d-9ebe-6ae2bc9bafe4
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