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Weather research and forecasting model wind sensitivity study at Edwards Air Force Base, CA / Leela R. Watson, William H. Bauman III.
- Format:
- Book
- Government document
- Author/Creator:
- Watson, Leela Ramaswamy
- Series:
- NASA contractor report ; NASA CR-214755.
- NASA contractor report ; NASA/CR-2008-214755
- Language:
- English
- Subjects (All):
- Mathematical models.
- Meteorology.
- Numerical weather forecasting.
- Models, Theoretical.
- Meteorological Concepts.
- mathematical models.
- meteorology.
- Medical Subjects:
- Models, Theoretical.
- Meteorological Concepts.
- Genre:
- technical reports.
- Technical reports
- Technical reports.
- Physical Description:
- 1 online resource (33 pages) : illustrations, maps.
- Place of Publication:
- [Kennedy Space Center, Fla.] : National Aeronautics and Space Administration [Kennedy Space Center], [2008]
- Summary:
- NASA prefers to land the space shuttle at Kennedy Space Center (KSC). When weather conditions violate Flight Rules at KSC, NASA will usually divert the shuttle landing to Edwards Air Force Base (EAFB) in Southern California. But forecasting surface winds at EAFB is a challenge for the Spaceflight Meteorology Group (SMG) forecasters due to the complex terrain that surrounds EAFB. One particular phenomena identified by SMG is that makes it difficult to forecast the EAFB surface winds is called "wind cycling". This occurs when wind speeds and directions oscillate among towers near the EAFB runway leading to a challenging deorbit bum forecast for shuttle landings. The large-scale numerical weather prediction models cannot properly resolve the wind field due to their coarse horizontal resolutions, so a properly tuned high-resolution mesoscale model is needed. The Weather Research and Forecasting (WRF) model meets this requirement. The AMU assessed the different WRF model options to determine which configuration best predicted surface wind speed and direction at EAFB. To do so, the AMU compared the WRF model performance using two hot start initializations with the Advanced Research WRF and Non-hydrostatic Mesoscale Model dynamical cores and compared model performance while varying the physics options.
- Contents:
- Executive summary
- Introduction
- Data and methodology
- Subjective analysis
- Objective analysis
- Conclusions.
- Notes:
- Title from title screen (viewed on May 4, 2011).
- "December 2008."
- Includes bibliographical references (pages 30-31).
- OCLC:
- 720066347
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