National Weather Center Colloquium

Dual-polarization radar as a tool to improve the performance of numerical weather prediction models

Dr. Alexander Ryzhkov
Senior Scientist
CIMMS / NSSL

13 January 2015, 4:00 PM

National Weather Center, Room 1313
120 David L. Boren Blvd.
University of Oklahoma
Norman, OK

Dual-polarization radar is becoming a standard on operational weather networks around the globe. Since WSR-88D network has been upgraded to dual-polarization capabilities in 2013, several benefits of a new technology have already been proven and demonstrated in operational environment. Polarimetric radar observations are particularly beneficial for the improvement of microphysical parameterizations of the NWP models because many microphysical processes can be identified by their polarimetric fingerprints. Another way to improve the NWP model performance is via assimilation of polarimetric radar data. This can be done either by microphysical and thermodynamic retrievals using radar data or by converting the output of NWP models into the fields of polarimetric radar variables. Possible polarimetric techniques for microphysical and thermodynamic retrievals will be discussed along with the polarimetric radar observation operators for cloud models with spectral and bulk microphysics.

Speaker bio

For accommodations based on disability, or more details, please call 325-6561. All visitors without NOAA or University of Oklahoma identification must register at the registration desk on arrival. Visitor parking is available for all University visitors. However, faculty/staff/students must have a current multi-purpose parking permit. Additional parking is available at the Lloyd Noble Center (LNC) for those individuals who do not have a parking permit. You do not need a permit to park in one of 1,200 spaces reserved for CART bus riders, although you must ride the CART shuttle to park in the reserved area. This area is on the north central side of the Lloyd Noble Center. Elsewhere at the LNC, permits are required.

The University of Oklahoma is a smoke-free / tobacco-free campus.

National Weather Center Colloquium Seminar Series website