School of Meteorology (Defense)

Developing a Statistical Thermodynamic Retrieval for Ground-Based Infrared Spectrometers

Greg Blumberg
OU School of Meteorology

02 August 2013, 2:00 PM

National Weather Center, Room 5820
120 David L. Boren Blvd.
University of Oklahoma
Norman, OK

Currently, the standard methods for observing tropospheric temperature and moisture profiles are radiosondes and satellite-based profilers. Forecasting high impact events such as severe weather outbreaks often require higher temporal resolution profiles near the surface. Ground based passive thermodynamic profiling systems are a promising tool for fulfilling this necessity. Two systems are often used for this task: microwave radiometers (MWR) and the Atmospheric Emitted Radiance Interferometer (AERI). Most commercial multi-channel MWRs use a statistical retrieval to back out temperature and moisture vertical profiles from the observed radiance data. While MWRs are able to retrieve fairly accurate profiles in the lower troposphere, the AERI has more spectral channels that allow more information about the profile to be derived. Thermodynamic and moisture profiles are commonly retrieved in AERI studies via an iterative physical retrieval. Although AERI physical retrievals are useful in research, they are much more computationally expensive and thus somewhat slow for use in an operational setting. This research will address this issue by developing multiple statistical retrieval methods for the AERI. In this talk, the accuracy of three statistical retrieval methods will be discussed, which show promise that AERI profiles can be used in an operational setting.

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.

School of Meteorology (Defense) Seminar Series website