Results April: Physics + Far-Field Forecast Products
C. Werner, B. Blanton, R. Luettich
As part of the 1999 frontal exchange field program for Real-Time Data
Assimilation (RTDA) on Georges Bank, the University of North Carolina
provided wind-stress and oceanic
surface elevation forecasts and hindcasts for the Georges Bank region.
Elevation boundary conditions were generated for two model domains: the BANK150
domain and a domain that includes higher resolution along the Georges Bank
Northern Flank. The boundary conditions for the model domains include a
contribution due to the NW Atlantic's response to large-scale atmospheric
forcings. This far-field NW Atlantic response is computed by forcing the
finite-element model ADCIRC with the meteorological forecasts from the NWS
model AVN, on a FEM grid that encompasses the NW Atlantic ocean west of 60W.
The elevation along the Georges Bank domain boundary nodes is extracted from
the NW Atlantic ADCIRC solution and used to force the QUODDY regional
forecasts. The procedure for extracting the atmospheric variables of interest
and for producing the elevation forecasts is shown in Figure (1).
