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Road Weather Management Workshop April 9, 2001 Robert G. Hallowell MIT Lincoln Laboratory

Explore the integration of sensors for improved storm tracking, wind estimations, and rainfall monitoring in civil aviation weather systems. Learn about the latest advancements in hurricane applications and automated weather forecasting technologies.

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Road Weather Management Workshop April 9, 2001 Robert G. Hallowell MIT Lincoln Laboratory

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  1. Aviation Sensors and Products for Hurricane Applications Road Weather Management Workshop April 9, 2001 Robert G. Hallowell MIT Lincoln Laboratory

  2. Outline • Overview of Aviation Weather Products (MIT/LL) • Hurricane Applications • Advantages of Integrating Sensors • Wind Estimations • Automated Storm Tracking • Summary

  3. Civil Aviation Weather Systems

  4. Integrated Terminal Weather System (ITWS)

  5. ITWS Products Via Digital Data Feed Graphics Products Text ProductsWind Profile Configured Alerts Terminal Wx Text Hazard Text AlertsMicroburst Wind Shear Gust Front ETI Tornado Alerts Lightning AP Status

  6. Multi-Radar Integration • Fundamental difference: FAA provides radar-derived products directly to non-meteorologist users without any meteorologist review • Improved NEXRAD data quality (AP, test patterns, clutter) • Mosaicked Radar Images (NEXRAD, TDWR, WSP) • Automated Dual-doppler 3-D Winds Products • Result: • More reliable estimates of rainfall • Better precipitation tracking • Improved overall coverage • Some Challenges: • TDWR focus on airport • ASR-9 fan beam (not easily merged with TDWR/NEXRAD)

  7. ITWS: Automated Radar Data Quality Editing Tampa NEXRAD after AP editing Melbourne NEXRADafter AP editing WARPmosaicalgorithm ITWSmosaicalgorithm

  8. ITWS: Dual-Doppler Winds

  9. Terminal Forecast Algorithm Architecture NEXRAD radar Radar data Scale separation Automated Scoring Track vectors Product display

  10. Terminal Convective Weather Forecast Product Technology development funded by FAA Aviation Weather Research Program (AWR) -30 -20 -10 Current Weather +10 +20 Key features: Automated scoring of past performance Updates every 5-6 minutes Uses NEXRAD VIL data Successful operational use at Dallas, Orlando, Memphis, and New York +30 +40 +50 +60 min Forecast

  11. Hurricane Erin 8/2/1995 • Category I Hurricane • Precipitation Intensity Based on NEXRAD • Movie Loop 0500Z to 1100Z

  12. Hurricane Erin - 60 Min Forecast • Verification of 60 minute forecast • Weak Precip or Stronger • Within 5 NM • Overall CSI score

  13. Summary • Multiple FAA weather radars and derived products coming on-line (ITWS 2002-2004, CIWS 2001, MIAWS 2001-2003) • FAA/NWS radar integration has been extremely successful operationally for the FAA • ITWS winds products (microbursts, 3-d winds) could be enhanced for hurricane applications • Storm tracking technology (0-2 hours) could assist in early flood warnings

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