OU BLISS sponsors seminars every other Friday from 2-3 pm in room 5600 of the National Weather Center. Members of BLISS, as well as outside guests, will speak on a variety of topics related to boundary layer research, including fieldwork, laboratory simulations, and more. All are welcome, and light snacks will be served. For a schedule of upcoming seminars, see the calendar.
Next Seminar: 04/18/14, 2:00 PM in NWC 5600:
Sampling the boundary layer with a sodar simulator
Sodars are widely used to monitor boundary layer conditions, and the BLISS research group at OU manages two sodars. Sodars can provide information about the boundary layer wind profile, as well as the thermodynamic structure of the atmosphere.
A time-series sodar simulator capable of ingesting large eddy simulation data has been developed. The sodar simulator follows the same method as an operational sodar to reproduce output parameters that would be generated by a sodar operating within the conditions represented by the LES. The sodar simulator operating parameters can be tuned to mirror existing systems or test new configurations or signal processing techniques, and the simulator can be placed anywhere within the LES domain, including overlapping with other virtual sampling instruments.
In this seminar, the algorithmic structure of the sodar simulator will be presented alongside background information about the acoustic remote sensing technique. Two case studies testing the sodar simulator on large eddy simulation output representing the convective boundary layer will be presented and discussed.
04/11/14 - Jinxin Wang: Urban effects on precipitation: a literature review and climatology study for Dallas-Fort Worth
04/04/14 - Kerstin Schaefer: Validation of the mesoscale transport and fluid model METRAS for Berlin based on a measurement campaign in summer 2012
03/28/14 - Nathan Anderson: Vertical Velocity Turbulence Profiles Measured by Two Horizontally Separated Doppler Lidars
02/21/14 - Larissa Reames: The WRF-simulated effects of the Oklahoma City urban area on its environment on the dynamics of a simulated supercell thunderstorm
02/14/14 - Dr. Alan Shapiro: New similarity model solutions for boundary-layer flows
01/31/14 - Dr. Petra Klein: Scaling of Mean Flow and Turbulence in the Urban Canopy Layer
01/17/14 - Jennifer Newman: Optimizing Lidar Scanning Strategies for Turbulence Measurements
12/2/13 - Dr. Robert M. Banta: Generalized Relationships in the Stable Boundary Layer Derived from High-Resolution Doppler Lidar and Instrumented Tower Data
11/15/13 - Subhashree Mishra: Raman Lidar Observations from the ARM Site in Darwin, Australia: A Water Vapor and Aerosol Climatology
11/08/13 - Kodi Monroe: Sensitivity of the modeled urban heat island to rooftop parameters
11/01/13 - Nathan Anderson: Vertical Velocity Turbulence Profiles Measured by Two Horizontally Separated Doppler Lidars
10/07/13 - Dr. Tristan Quaife: Integrating satellite data with models of the land surface
10/04/13 - Hayden Mahan: Impacts of Vegetation and Precipitation on Throughfall Heterogeneity in a Tropical Pre-Montane Transitional Cloud Forest
09/06/13 - Dr. Alan Shapiro: A Boundary-Layer Scaling for Turbulent Katabatic Flow
05/03/13 - Jennifer Newman: Using Ground-Based Measurements to Improve Wind Power Forecasts
04/19/13 - Greg Blumberg: Developing a Statistical Thermodynamic Retrieval for Ground-Based Infrared Spectrometers
04/05/13 - Tim Bonin: Observed Characteristics of Low-Level Jets During the Lower Atmospheric Boundary Layer Experiment
03/08/13 - Charlotte Wainwright: Virtually Sampling the Developing Boundary Layer
02/08/13 - Xiaoming Hu: Simulations of thet Low-Level Jet with WRF
01/25/13 - Dr. Petra Klein: Impact of the Low-Level Jet on Urban Heat Island Intensity and Nocturnal Ozone Concentrations in OKC