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Flood Forecast Mapping in AHPS October 28, 2003

Flood Forecast Mapping in AHPS October 28, 2003. Outline. Definition Requirements Processing Tasks One-time Routine Test Area Presentation Methods What next?. Definition.

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Flood Forecast Mapping in AHPS October 28, 2003

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  1. Flood Forecast Mapping in AHPSOctober 28, 2003

  2. Outline • Definition • Requirements • Processing Tasks • One-time • Routine • Test Area • Presentation Methods • What next?

  3. Definition • Provide areal extent of flooding referenced against well-understood markings (streets, structures, landmarks) for water elevation forecasts • At multiple locations along river reach

  4. Requirements • Water Surface Profile • FLDWAV, SHRT, other • DEM Data • Processing Tools • Presentation Methods

  5. Requirements • Water surface profile • NWS FLDWAV • Data collection • Calibration • Verification • Routine generation • deterministic • probabilistic

  6. Requirements • Digital Elevation Data • High-resolution most effective • Reference Overlays • Orthophoto (geo-referenced images) • USGS Quad Sheets • TIGER Data • Utility Plans

  7. Requirements • Processing Tools • Process static data • Create ground grid • Process dynamic data • Create water surface grid • FLDVIEW • Arcview based

  8. Test Area

  9. Test Area

  10. Test Area

  11. Test Area

  12. Processing – Ground Grid

  13. Processing – Ground Grid

  14. Processing – Water Surface Grid

  15. Processing – Water Surface Grid

  16. Samples (Jan ‘96)

  17. Samples (Jan ‘96 Zoom)

  18. Highwater Comparison (‘84)

  19. Samples (4 layer zoom)

  20. Presentation • Water surface profile • Water surface grid • Shapefile • Static web images • Web-based image generation • Policy issues for new product category

  21. Web-based Image Generation • Internet map service • User interaction • User selectable layers • Zoom • Prototype site: • http://nwshqfld.nws.noaa.gov • Autodesk plug-in required

  22. Prototype Map Service

  23. Prototype Map Service

  24. Prototype Map Service

  25. Prototype Map Service

  26. Prototype Map Service

  27. Prototype Map Service

  28. Prototype Map Service

  29. Prototype Map Service

  30. Status • Single location • Lewistown on Juniata River • Daily Background processing • After routine operations • Cron initiated • FLDWAV on Linux • FLDVIEW on HP WS

  31. Stats • Space Requirements • On AWIPS, Lewistown - ~1 GB • On FLDIMS - ??? • FLDWAV performance - Linux • Deterministic, entire Susq. – few seconds • Probabilistic, 7 day PQPF – 35+ seconds • Probabilistic, 30 day - ~ 3 minutes

  32. Stats (cont’d) • FLDVIEW performance – HP WS • Fully automated • 7+ minutes deterministic (one layer) • 35+ minutes, 5 layer probabilistic (5 layers) • FLDVIEW performance – P3, 1 GHz, 512 MB • ~1’ 10” per layer

  33. Stats (cont’d) • Automated process • Within Linux scripts • OFS, PQPF, ESPADP, FLDVIEW, FTP • MARFC-developed queuing system • MARFC-developed auto-X-Display • Expect-based FTP transfer of modified shapefiles

  34. What next? • Sequencing • From peak value to 6 hour values • Animation? • New location • Coding and structure changes • Other Susq. FLDWAV calibrated reach • OHD prepared • Resources and methodology for entirely new location • Data, software, code, training, documentation • In-house vs. AHPS funded

  35. What next? (cont’d) • Simplified Hydraulic Routing Technique (SHRT) • Mapping for locations without backwater, without junctions • NWS Policy • Products • Water surface profiles, shapefiles, images, internet mapping services • Official communications methods • PC-based FLDVIEW execution • Currently coded for either HP-UX or PC

  36. What next? (cont’d) • Internet map service selection • User feedback • Design • Performance • User-friendliness

  37. The End

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