The Arctic Cap Nowcast/Forecast System (ACNFS), a state-of-the-art
coupled ice/ocean data assimilative ice forecasting
system for the Northern Hemisphere, has replaced PIPS 2.0
as the Navy's operational ice model.
Please see the ACNFS website for the latest
The Polar Ice Prediction System (PIPS 2.0) was the operational model run
by the Naval Oceanographic Office (NAVO)
for sea ice forecasting. The PIPS 2.0 coupled ice-ocean model forecast ice conditions from the North Pole south to
30°N latitude. The PIPS 2.0 made a 120-hour forecast each day of ice displacement, ice thickness, and ice concentration.
Ice concentration data from the Special Sensor Microwave Image (SSM/I) was used to initialize the system's forecast.
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