GFDL Formal Seminar

Thu, Jun 18, 2020, 2:00 pm to 3:00 pm

The National Severe Storms Laboratory (NSSL) serves to enhance NOAA's capabilities to provide accurate and timely forecasts and warnings of hazardous weather events. NSSL accomplishes this mission through: 1) research to advance the understanding of weather processes, 2) research to improve forecasting and warning techniques, and 3) development and transition of operational applications. NSSL transfers new scientific understanding, techniques, and applications to the National Weather Service (NWS). This presentation overviews the four divisions and primary programs at NSSL conducting basic and applied research in support of this mission. NSSL is NOAA's primary weather radar laboratory with strong scientific and engineering leadership in dual-polarization and phased array weather radar. Scientists and engineers within the Radar Research and Development Division (RRDD) are the primary research to operations (R2O) entity for the NEXRAD radar network. RRDD developed the dual-polarization weather radar prototype and used it to demonstrate improvements to quantitative precipitation estimation that led to the upgrade the NEXRAD network. This group is leading NOAA's research and development activities for a future operational radar network based on phased array radar technology. Weather radar data collected by the NEXRAD network, and other operational observation platforms, are the basis for severe weather applications developed by the Warning Research and Development Division (WRDD). A primary example is their development of the Multi-Radar Multi-Sensor (MRMS) algorithm. Transitioned recently to National Weather Service (NWS) operations, this algorithm is foundational to the development of forecast tools, such as quantitative precipitation estimation and flash flood forecasting via FLASH (Flooded Locations and Simulated Hydrographs). Additionally, WRDD is leading the Forecasting a Continuum of Environmental Threats Program at NSSL through the development and testing of observational-driven 0-1-hour probabilistic hazard information in the Hazardous Weather Testbed, and social science research to ensure usability of probabilistic information by users, partners, and publics. While WRDD focuses on the warning spatiotemporal scale, the Forecast Research and Development Division (FRDD) focuses on a broader spatiotemporal continuum, from 1-hr to sub-seasonal forecasting. Primary research activities in FRDD include process studies of convective storms and environments, ground-based instrument development and observational strategies, and the development of severe weather climatology and long-term forecasting methods. FRDD also contains two programs key to NOAA's convective- and storm-scale modeling research, development, and evaluation: the Hazardous Weather Testbed Experimental Forecast Program (co-led with the NWS Storm Prediction Center) and the Warn-on-Forecast Program. The presentation will focus primarily on research and development conducted by FRDD scientists. In support of these three divisions, the Field Observing Facilities and Support team develops, maintains, and supports unique mobile instrumentation like Collaborative Lower Atmosphere Mobile Profiling System (CLAMPS), Mobile Laboratories, Electric Field Meters, Particle-size Image and Velocity Probe (PASIV), and mobile weather radars. NSSL scientists and engineers use this instrumentation to conduct in-house research and collaborative field programs, like VORTEX SE and Targeting Observations by Radars and UAS of Supercells (TORUS), to improve the understanding of severe storm processes.

Sponsor(s): 
Smagorinsky Seminar Room 209
Speaker(s): 

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