Research Summaries

Back Improvement of NRL's COAMP Model by Improving the Radar Data Assimilation System and Model Physics

Fiscal Year 2013
Division Graduate School of Engineering & Applied Science
Department Meteorology
Investigator(s) Chang, Chih-Pei
Chen, Hway-Jen
Sponsor Naval Research Laboratory (Navy)
Summary The radar observations have the characteristics of high spatial resolution and rapid update rate which are capable of resolving storm structures on fine spatial and time scales and capturing storm evolutions timely. However, the radar observed data are generally in the form of reflectivity and radial velocity, which cannot be incorporated directly into a numerical weather prediction (NWP) model. Therefore, retrieval procedures are required to assimilate radar data into an NWP.
The radar data assimilation system (RDAS) developed at the Naval Research Laboratory (NRL) for the Navy's Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS(R)) includes the data retrievals and assimilations. The objective of the RDAS development is to improve the COAMPS(R) performance by providing finer resolution of the initial conditions and more frequent updates of the weather system evolutions.
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Publications Publications, theses (not shown) and data repositories will be added to the portal record when information is available in FAIRS and brought back to the portal
Data Publications, theses (not shown) and data repositories will be added to the portal record when information is available in FAIRS and brought back to the portal