After Dual Pol – What’s Next for the WSR-88D? Jessica Schultz, NWS Radar Focal Point Marty...
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Transcript of After Dual Pol – What’s Next for the WSR-88D? Jessica Schultz, NWS Radar Focal Point Marty...
After Dual Pol – What’s Next for the
WSR-88D?Jessica Schultz,
NWS Radar Focal Point
Marty Williams, Steven D. Smith, Joe Chrisman, and Dan Frashier
Radar Operations Center
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NEXRAD Program
• Majority deployed in early-mid 90s– Original life expectancy
• Dual pol last major upgrade– Focus on tuning data, algorithms– Improve calibration process
• Keep system viable through at least 2030
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• Service Life Extension Program (SLEP)– 4 independent projects• Signal Processor• Transmitter• Pedestal• Equipment Shelters
NEXRAD SLEP: 2015-2022
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• Follow-on to SAILS (deployed 2014)• Currently field testing• Deployment nationwide Spring/Summer 2016– Up to 3 additional 0.5° cuts– VCP 12 or 212– With AVSET, 0.5° cuts every 75 seconds– Improves lead time for severe thunderstorms,
tornadoes
MESO-SAILS
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• Currently 9 VCPs– Field: Reduce number of VCPs– Less frequently used: 11, 211, 221– Less vertical coverage: 21, 221
• User community supports common angles– VCP 12, 212 as model
• Replace 11, 211, 21, 221 with new VCP 215• Introduce new clear-air VCP 35• Deployment Build 18 (Spring 2017)
VCP Changes
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• General Surveillance• Same elevations as VCP 12/212 below 10°• Same vertical coverage as VCP 11/211
above 10°• Same data quality as VCP 21• Duration: ~6 mins• AVSET & 1 SAILS cut
VCP 215
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• Clear-Air• More angles than 31/32• Based on low-level elevations of VCP 12/212• Duration: ~7 mins• May eventually replace VCP 32• 1 SAILS cut
VCP 35
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• Pattern of volumes– More frequently sample specific elevations
• Short volume scan (0.5°-2.4°) between two full volume scans
• Early testing to support QLCS interrogation• Possible field test Summer 2017
VCP Sequencing
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• Redesign HCI
• AWIPS control to change VCP, invoke AVSET/SAILS
NWS Internal Changes
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• Several options to consider– Maintain WSR-88D – MPAR– Other alternatives?
Radar Beyond 2030