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The Performance of QPESUMS in CWB

Explore the performance and application of QPESUMS in the CWB Paul Tai-Kuang Chiou Meteorological Satellite Center's Very Short-Range Forecasting (VSRF) system. This includes dealing with short-term quantitative precipitation forecasts on severe weather systems such as MCS in Mei-Yu fronts and typhoons. The system incorporates radar and model data, and uses components like QC, Stratiform/Convective Segregation, Z-R, and Gauge Adjustment.

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The Performance of QPESUMS in CWB

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  1. The Performance of QPESUMS in CWB Paul Tai-Kuang Chiou Meteorological Satellite Center Central Weather Bureau

  2. Very Short-Range Forecasting (VSRF) System(2002-2008project) • Dealing with 0-12hr short-term quantitative precipitation forecasts (QPF) on severe weather systems • MCS in Mei-Yu fronts • Typhoons • Approaches • Radar (0-3hr)– QPESUMS • Model (3-12hr)– LAPS-MM5 (WRF) (hot-start MM5/WRF)

  3. QPESUMS: Quantitative Precipitation Estimation and Segregation Using Multiple Sensors NSSL CWB WRA

  4. Data stream and Product of VSRF Radar Single radar Satellite QPE/F raingauge QPESUMS 3-D mosaic Sfc and upper air Monitoring System Echo forecast lightening Hot-start MM5 WRF QPF LAPS Forecast System

  5. Automatic rain gauge distribution

  6. Data source and the products for QPESUMS

  7. CWB Radar Coverage DomainIntegration of multiple weather radar observations for complete, high resolution, and accurate depiction of storm intensity and movement.

  8. QPESUMS Components • QC • Stratiform/Convective Segregation • Z-R • Remap and Mosaic • Gauge Adjustment • Verification • Display

  9. Adaptable Z-R relationships dBZ=10LogZ

  10. Display • Web-based • GIS overlays • Political boundaries • Rivers • Basins • Roads/highways • Warning products • Storm and typhoon tracks • Flash floods for basins

  11. Application in Flash Flood Prediction Radar At any location StormSurge Model

  12. QPESUMS產品種類 Single radar product Lighting product Vertical crossection Severe storm dection Satellite rainfall estimation Mosaic product Typhoon position QPE product QPF product

  13. Typhoon Mindule -- Area Rainfall Estimation

  14. Rainfall estimation verification

  15. Haitang typhoon Southwesterly flow Talim typhoon Matsa typhoon

  16. Southwesterly flow cases 20050612 20050613 20050614 20050615

  17. Haitang typhoon cases 20050717 20050718 20050719 20050720

  18. Matsa typhoon cases 20050804 20050805 Talim typhoon cases 20050901 20050831

  19. Radar rainfall estimation verification for total river basin

  20. Radar rainfall estimation verification for southern four river basin ★ ★ ★ ★

  21. Radar rainfall estimation verification for southern four river basin

  22. Radar rainfall estimation verification for northern four river basin ★ ★ ★ ★

  23. Radar rainfall estimation verification for northern four river basin

  24. Radar rainfall estimation verification for southern twelve river basin

  25. Radar rainfall estimation verification for southern twelve river basin

  26. Rainfall estimation comparison June 15, 2005 Southwesterly flow heavy rainfall 0-24 hrs gauge 0-24 hrs QPE 0-24 hrs QPE+gauge

  27. Damrey 72h rain accumulation 72h 累積雨量 0-72 hrs gauge 0-72 hrs QPE+gauge

  28. Damrey 24h rain accumulation 0-24 hrs gauge 0-24 hrs QPE+gauge

  29. Damrey 12h rain accumulation 0-12 hrs QPE+gauge 0-12 hrs gauge

  30. Damrey 6h rain accumulation 6h 累積雨量 0-6 hrs gauge 0-6 hrs QPE+gauge

  31. 3h 累積雨量 Damrey 3h rain accumulation 0-3 hrs gauge 0-3 hrs QPE+gauge

  32. Damrey 1h rain accumulation 1h 累積雨量 0-1 hrs QPE+gauge 0-1 hrs gauge

  33. 雨量觀測之時間序列顯示

  34. 土石流分區之定量降水估計時間序列顯示

  35. 村里行政區之定量降水估計時間序列顯示

  36. OUTLOOK of QPESUMS • 0-3hr QPF on-line operation & verification • System improvement • Lightening data： • Convective precipitation • Dual polarization data and technique： • Precipitation type (solid, liquid, etc.) • Convective & stratiform precipitation • Customer-oriented QPESUMS products • For different disaster mitigation agencies

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