Environmental Modeling Center / Marine Modeling and Analysis Branch (text)

Home Compare with Obs Data Assim Monitor (Internal) RTOFS & WOCE Graphics Viewer Data Access About the Model

Welcome to the Marine Modeling and Analysis Branch of the Environmental Modeling Center at the National Centers for Environmental Prediction in College Park, Maryland. We are responsible for the development of improved numerical marine forecasting and analysis systems within the NOAA National Weather Service.

Operational Products

Real Time Ocean Forecasting System (RTOFS)


NOTICE: Upgrade to the Global Wave Forecasting System Multi_1

Effective on or about January 9, 2018, beginning with the 1200 Coordinated Universal Time (UTC) run, the National Centers for Environmental Prediction (NCEP) will make a major upgrade to the Global Wave Forecasting System (Multi_1).
Upgrade highlights:
- Adding a North Polar Stereographic Grid extending to near the North Pole
- Extending hourly grib2 output out to 120 hours

Full details on the upgrade may be found in the Service Change Notice 17-129

A third generation wave model run four times a day (00Z, 06Z, 12Z, and 18Z). Each run starts with 9-, 6- and 3-hour hindcasts and produces forecasts of every 3 hours from the initial time out to 180 hours (84 hours for the Great Lakes).

Model Suite

Sea Ice Home Page

The Polar and Great Lakes Ice group works on sea ice analysis from satellite, sea ice modeling, and ice-atmosphere-ocean coupling. Our work supports the Alaska Region of the National Weather Service, the Great Lakes Marine Forecasting group in the Cleveland NWSFO, and other groups, as well as the Environmental Modeling Center, of which the ice group is a part.
Ice group: longer description

NCEP SST Analysis

Because there are a number of different uses for sea surface temperature analysis, a number of different analyses have been developed at NCEP. The two families are the RTG -- Real Time Global, and the OI -- Optimal Interpolation (aka Reynolds SST). The RTG analyses are aimed at weather prediction and modeling, particularly at high resolution and short range. The RTG analyses employ a 2DVAR analysis technique. The OI analyses are lower resolution and aimed more at long range weather and climate. Both have a history.

Marine Meteorology Group Products

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This is a low-volume announcement list for changes to our products and services.

SDM Contact Notes:
Ocean Models -- Avichal Mehra
Wave Models -- Arun Chawla
Sea Ice -- Robert Grumbine
SST -- Robert Grumbine

About Us
Mission - Tech Procedure Bulletins - Publications - Personnel - NOAA Staff Dir.

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NOAA/ National Weather Service
National Centers for Environmental Prediction
Environmental Modeling Center
Marine Modeling and Analysis Branch
5200 Auth Road
Camp Springs, Maryland 20746-4304 USA
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Page last modified: Wednesday, 10-Apr-2019 16:00:23 UTC