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Boundary Layer Dynamics
Figure 3.1 The phenomenological scales currently addressed in boundary layer dynamics research at NRL's three sites. A new center would serve to integrate the combined assets.
it would not be difficult to begin testing the impact of the sea state on either model. For example, the literature describes numerous approaches to including sea-state effects in specifying the aerodynamic drag coefficient, such as parametric MABL models, which require integral parameters of the sea state, and spectral MABL models, which require detailed descriptions of the directional wave field. Most of these models are constructed from limited data sets derived from buoy measurements. None of them have been rigorously tested in a global and/or regional model to determine the effects of and sensitivities to sea-state inputs. Similarly, the ocean modelers could test the sensitivity of their models with improved predictions of the wind stress.
A NEW CENTER AT NRL-W
As a result of its consideration of capabilities at the NRL complex, the panel recognized that an unusual opportunity exists to focus the advanced research in BLD at NRL-E and NRL-S to enhance the Navy forecasts produced at the Fleet Numerical Meteorological and Oceanographic Center (FNMOC)/NRL-W facility.
Historically, NRL-W's role has been to support the efforts of FNMOC. Its work on the FNMOC atmospheric forecast model has been of major importance. Another applied activity involves making the forecasts available and useful to the fleet. Thus, NRL-W, as inherited by NRL, seems at present to be primarily a service facility. Service should continue to be one of its primary responsibilities; however, with one of the largest collections of marine meteorologists in the country, NRL-W has the potential to be a valuable national resource.
In fact, NRL-W's access to the huge FNMOC database represents an enormous and unique advantage, and present trends in declassification of databases should facilitate broader cooperation, generally, in its use for research. This capability, coupled with the advantages that come from having a group of modelers that must work in continual contact with an operational user organization, makes NRL-W a special facility. These advantages should not be lost.