Boundary Layer, Urban Meteorology and Land-Surface Processes
Virtually Sampling the Developing Boundary Layer
School of Meteorology
08 March 2013, 2:00 PM
National Weather Center, Room 5930
120 David L. Boren Blvd.
University of Oklahoma
Within the BLISS group, instruments including sodar, unmanned aerial systems (UAS) and instrumented towers are widely used when monitoring and studying the atmospheric boundary layer (ABL). Given the utility of incorporating data gathered from these instruments into studies of the ABL, we have recently developed methods to simulate the sodar, UAS and instrumented tower. Each of the simulators can be used can be used to evaluate the performance of the instruments under controlled conditions and allows for comparisons of the measured fields between the instruments.
The simulators are designed to sample the output from a large eddy simulation (LES) code configured to model ABL conditions. The simulated sodar operating parameters such as frequency, height resolution, and pulse repetition time can be set to emulate existing systems or test new configurations. The simulated UAS can be set to model a certain flight plan. Moreover, the location of both the sodar, UAS and tower within the LES domain can be set by the user. The sodar simulator generates time-series data, which facilitates testing of various signal processing techniques.
In this seminar the simulated sodar, UAS and tower will be discussed and a comparison of the results for a developing convective boundary layer LES will be presented.