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OOI-OSSE Project

OOI-OSSE Nov 2-16, 2009

UMass Dartmouth (SMAST) will be participating during the Nov 2-16, 2009 OOI-CI OSSE to provide modeling support. The SMAST operational Harvard Ocean Prediction System (HOPS; see Brown et al. 2007 a and b) regularly assimilates satellite SST and, when available, MARCOOS glider-measured 4-D water properties to produce weekly 3-D nowcast and forecast MARCOOS regional temperature maps (see http://www.smast.umassd.edu/modeling/RTF/index.php). We will provide 3-4 forecasts during the OSSE period assimilating all available data fom SST and 4-5 Gliders that are being deployed from Rutgers. The UMass team is also working with the MIT MSEAS group to implement the CF-compliant output distribution for the collaborative high-resolution nested forecasts.

Specific Objectives:

  • Provide operational 3-D data assimilation SMAST-HOPS outputs for OSSE during Nov 2-16.
  • Work with the MIT MSEAS group to provide high-resolution, nested forecasts over opendap for the mission control of the AUV and Glider fleets.
  • Develop 4-D hindcast products after the experiment is over with all data available during this period.
  • Feedback to the OOI group on how to improve the cyber tools for real-time operations and information dissemination.

An overview of the OSSE effort is described in the ever-evolving blog at http://www.i-cool.org/?cat=5.

The OSSE groups are coordinating satellites, currently 4 gliders, and 4 AUVs starting on Tuesday Nov 3. A Data and Model portal is clunged together and can be found at http://ourocean.jpl.nasa.gov/CI.

The MIT-MSEAS group and UMass-Dartmouth group work together on the ocean modeling component of the OSSE. They utilize the MSEAS system, with its new free-surface and two-way nested primitive-equation code (an upgraded version of the Harvard primitive-equation), forced by new barotropic tidal current estimates. The web site that MIT has set up is located at http://mseas.mit.edu/Sea_exercises/OOI-OSSE09/index.html.

Some of the section plots from our model forecasts are available in pdf below:

  • Non-sequential assimilation of Glider data at Initialization -- Forecast for Nov. 2, 2009:

  • Sequential assimilation of Glider data during simulation period -- Forecast for Nov. 2, 2009:

  • Sequential assimilation of Glider data -- Forecast for Nov. 6, 2009:


Supported by NSF (Subcontract from Rutgers)

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