Doppio: Regional Ocean Model Reanalysis for the Mid-Atlantic Bight, 2007-2024

NOAA IOOS MARACOOS provides a multi-year reanalysis of ocean circulation for the Mid-Atlantic Bight and Gulf of Maine from 2007 to 2024. The dataset is produced by the Regional Ocean Modeling System (ROMS) with four-dimensional variational data assimilation of satellite, radar, and in-situ observations. Outputs include sea level, velocity, temperature, salinity, and air-sea fluxes on a 7-km horizontal grid with 40 vertical levels.

Use Cases

• Validate ocean circulation models based on the assimilated observational data.
• Analyze long-term trends in sea surface temperature and salinity for the northeast U.S. shelf.
• Study coastal ocean dynamics and shelf-deep sea interactions based on the 3-D velocity and state variables.
• Assess air-sea flux impacts on regional climate based on the provided wind stress and net heat flux data.
• Downscale global climate model outputs for regional coastal management based on the described downscaling methodology.

Strengths

• Covers an 18-year period from 2007 to 2024, providing a long temporal baseline.
• Assimilates multiple observation types including satellite, radar, and in-situ data.
• Provides outputs at three temporal aggregations: hourly snapshots, daily averages, and monthly/yearly averages via a separate service.
• Uses a structured grid with 40 vertical levels for detailed 3-D analysis.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

NOAA Integrated Ocean Observing System (IOOS) via MARACOOS and NERACOOS.

Collection Method

Outputs from a Regional Ocean Modeling System (ROMS) configured with four-dimensional variational data assimilation.

Time Range

2007-01-02 to 2024-12-31

Geography

Mid-Atlantic Bight and Gulf of Maine, northeast U.S. continental shelf.