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Lightning Observations and Applications at Various Scales

Lightning Observations and Applications at Various Scales. Scott D. Rudlosky Physical Scientist NOAA/NESDIS/STAR College Park, MD. Located at the University of Maryland’s Cooperative Institute for Climate and Satellites (CICS) a nd Earth System Science Interdisiplinary Center (ESSIC).

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Lightning Observations and Applications at Various Scales

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  1. Lightning Observations and Applications at Various Scales Scott D. Rudlosky Physical Scientist NOAA/NESDIS/STAR College Park, MD Located at the University of Maryland’s Cooperative Institute for Climate and Satellites (CICS) and Earth System Science Interdisiplinary Center (ESSIC)

  2. Locations of Present LMA Networks Intra-Cloud (IC) Lightning • The first flash in a storm is almost always intra-cloud (IC), and the great majority of flashes are IC (typically > 3 to 1) • Local LMA networks detect VHF radiation “sources” (at 60 MHz) that are emitted by IC flashes and upper portions of CG flashes • Few National Weather Service (NWS) offices have real-time access to these data

  3. CHUVA – Sao Paulo LMA Deployment LINET Sensor LMA Sensor Sensor Locations LMA Sensor LMA Computer, Battery, Charger

  4. CHUVA =Cloud processes of tHe main precipitation systems in Brazil: A contribUtion to cloud resolVing modeling and to the GPM (GlobAl Precipitation Measurement)

  5. Lightning Observation From Space Tropical Rainfall Measurement Mission The Future !!!

  6. LMA Density 2×2 km Reflectivity at 4 km AGL GLM Proxy 8×8 km Develop and Evaluate GLM-Proxy Data LMA Resolution GLM Resolution LMA Resolution GLM Resolution

  7. Combining Lightning and Radar Observations • Rotation and Hail Parameters • Observed for temporal trends • Accumulated to create paths • Tracked within individual storms • A “lightning jump” clearly precedes severe weather at the surface (see below) Rotation Track - 120 min Hail Swath - 120 min

  8. Washington DC Lightning Mapping Array • The DCLMA has been operational with 8 sensors since late 2006 (two added in 2009) • Provides insights into storm-scale processes • Improves situational awareness during severe weather warning operations LMA Flash Extent Density

  9. Washington D.C. Lightning Mapping Array

  10. COMET Collaborative Research Project • Development and Evaluation of WES Cases to Investigate the Use of Pseudo-GLM Products during Warning Operations at the Sterling WFO • Background • Study began during Fall 2011 • Working closely with Steve Zubrick and Bryan Jackson • Original graduate student left school (replacement selected) • Research Progress • Select cases of interest (20 April 2008, 3 June 2009) • Gather archived data (lightning, radar, and model-derived) • Compose outlines for WES cases • Create pseudo-GLM products (Geoffrey Stano) • Incorporate pGLM products • Develop WES cases

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