Ocean modeling at NCEP. Hendrik L. Tolman NOAA / NWS / NCEP / EMC Marine Modeling and Analysis Branch [email protected] 1. RTOFS-Atlantic. HYCOM application: Primitive equation with free surface.
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Mean Gulf Stream path from old model (left) tends to overshoot the annual mean path derived from altimetry data near 72◦W as compared to the Gulf Stream location in the new implementation (right)
HWRF: O(9 km)
GFS: O(25 km)
Model forced with GFS only.
Fully coupled system is in testing mode.
Courtesy of Alan Wallcraft (NRL)