Accession Number:

ADA370538

Title:

Merging Disparate Data and Numerical Model Results for Dynamically Constrained Nowcasts

Descriptive Note:

Final rept. 1 Oct 98-30 Sep 99

Corporate Author:

OLD DOMINION UNIV RESEARCH FOUNDATION NORFOLK VA

Personal Author(s):

• Kirwin, A. D., Jr.
• Lipphardt, B. L., Jr

Report Date:

1999-11-05

Pagination or Media Count:

7.0

Abstract:

Our objective is to combine disparate surface current observations from sources like HF radar, Lagrangian drifters, passive remote sensing and ADCPs with open boundary flow information from any available source numerical model, observations, climatology, etc. to develop dynamically consistent nowcasts of the surface flow field. These nowcasts can then be analyzed using existing dynamical systems templates to study the mixing characteristics of the surface flow field. Also, because our formulation is exactly three-dimensionally incompressible, the nowcast can be used to infer some features of the subsurface flow field and may be readily assimilated into a numerical model.

Descriptors:

• *FLOW FIELDS
• *OCEAN MODELS
• COMPUTATIONAL FLUID DYNAMICS
• HIGH RESOLUTION
• INCOMPRESSIBLE FLOW
• THREE DIMENSIONAL FLOW

Subject Categories:

• Physical and Dynamic Oceanography
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE