Using Ground-based Observations at NSSL Dr. David Turner (NSSL) February 25–27, 2015 National Weather Center Norman, Oklahoma non-radar ⌃ profiling ⌃

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Presentation transcript:

Using Ground-based Observations at NSSL Dr. David Turner (NSSL) February 25–27, 2015 National Weather Center Norman, Oklahoma non-radar ⌃ profiling ⌃

Ground-based Temperature, Humidity, & Wind (THW) Profile Obs in the Boundary Layer (BL) Storm initiation and evolution depends strongly on THW profiles in the BL, but storms also modify these profiles Higher temporal and spatial THW profiles in BL needed for: Better understanding storm initiation and evolution Improved analyses, forecasts, and warnings Spatial and temporal gaps in radiosonde network Satellites don’t see BL well, especially in cloudy cases Aircraft obs provide uneven sampling Weather radars do not see true THW structure of atmosphere

These Ground-based Remote Sensors Exist (and are commercially available) NSSL Lab Review Feb 25–27, Atmospheric Emitted Radiance Interferometer (AERI) Microwave Radiometer (MWR) Doppler Wind Lidar (DWL) Radar Wind Profiler (RWP) Thermodynamic Profiling SystemsWind Profiling Systems

Using These New Remote Sensors: Example 1 NSSL Lab Review Feb 25–27, NEXRAD 1 km MOSAIC 10 Aug :25

Using These New Remote Sensors: Example 1 NSSL Lab Review Feb 25–27, NEXRAD 1 km MOSAIC 10 Aug :25

Using These New Remote Sensors: Example 2 NSSL Lab Review Feb 25–27, Tornado touches down 20 May 2013 Moore / OKC Tornado

Summary: A Future Ground-based Network? NSSL Lab Review Feb 25–27, Plains Elevated Convection at Night (PECAN) 1 June through 15 July 2015 (NSF, NOAA, NASA, DOE) 6 fixed profiling sites and 4 mobile profiling facilities Collaborative Lower Atmospheric Mobile Profiling System (CLAMPS) (under construction) AERI, MWR, DWL, Sfc Met Univ Oklahoma & NSSL Using Historical Datasets (NWC rooftop and DOE) DOE also has sites in the Arctic, tropics, and other locations Network for 4 years ( ) Central Facility for 20+ years Observation System Simulation Experiments (OSSEs) Wintertime OSSE showed improved precip location and intensity in midwest