NOAA R2O Efforts at the University of North Dakota

Dr. Aaron Kennedy
University of South Dakota

04 June 2015, 4:00 PM

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

Over the past decade, convection-permitting (dx <= 4km) simulations have become increasingly common and have shown merit in predicting a variety of convective modes. NCEP and NSSL have run daily 4 km deterministic WRF simulations in support of the Spring Hazardous Weather Testbed (HWT) for a number of years. This unique, long-term dataset of simulations provides an excellent opportunity to systematically evaluate performance.

The first portion of this talk will detail efforts to utilize and build upon these simulations in a recently funded Research-to-Operations (R2O) proposal. Gross properties of convection from these simulations will be compared to observational datasets over the Southern Great Plains (SGP) region.

A key aspect of the proposed work is the ability to investigate how model performance varies by the large-scale atmospheric state. The second portion of this talk will detail how synoptic patterns can be classified utilizing Self Organizing Maps (SOMs). Examples of how SOMs have benefited both modeling and observational studies over the SGP will be provided.