Flood Forecast Mapping in AHPS October 28, 2003
10/28/2003MARFC/NWS/NOAA Outline Definition Requirements Processing Tasks –One-time –Routine Test Area Presentation Methods What next?
10/28/2003MARFC/NWS/NOAA Definition Provide areal extent of flooding referenced against well-understood markings (streets, structures, landmarks) for water elevation forecasts At multiple locations along river reach
10/28/2003MARFC/NWS/NOAA Requirements Water Surface Profile –FLDWAV, SHRT, other DEM Data Processing Tools Presentation Methods
10/28/2003MARFC/NWS/NOAA Requirements Water surface profile –NWS FLDWAV Data collection Calibration Verification Routine generation –deterministic –probabilistic
10/28/2003MARFC/NWS/NOAA Requirements Digital Elevation Data –High-resolution most effective Reference Overlays –Orthophoto (geo-referenced images) –USGS Quad Sheets –TIGER Data –Utility Plans
10/28/2003MARFC/NWS/NOAA Requirements Processing Tools –Process static data Create ground grid –Process dynamic data Create water surface grid FLDVIEW –Arcview based
10/28/2003MARFC/NWS/NOAA Test Area
10/28/2003MARFC/NWS/NOAA Test Area
10/28/2003MARFC/NWS/NOAA Test Area
10/28/2003MARFC/NWS/NOAA Test Area
10/28/2003MARFC/NWS/NOAA Processing – Ground Grid
10/28/2003MARFC/NWS/NOAA Processing – Ground Grid
10/28/2003MARFC/NWS/NOAA Processing – Water Surface Grid
10/28/2003MARFC/NWS/NOAA Processing – Water Surface Grid
10/28/2003MARFC/NWS/NOAA Samples (Jan ‘96)
10/28/2003MARFC/NWS/NOAA Samples (Jan ‘96 Zoom)
10/28/2003MARFC/NWS/NOAA Highwater Comparison (‘84)
10/28/2003MARFC/NWS/NOAA Samples (4 layer zoom)
10/28/2003MARFC/NWS/NOAA Presentation Water surface profile Water surface grid –Shapefile Static web images Web-based image generation Policy issues for new product category
10/28/2003MARFC/NWS/NOAA Web-based Image Generation Internet map service User interaction –User selectable layers –Zoom Prototype site: – –Autodesk plug-in required
10/28/2003MARFC/NWS/NOAA Prototype Map Service
10/28/2003MARFC/NWS/NOAA Prototype Map Service
10/28/2003MARFC/NWS/NOAA Prototype Map Service
10/28/2003MARFC/NWS/NOAA Prototype Map Service
10/28/2003MARFC/NWS/NOAA Prototype Map Service
10/28/2003MARFC/NWS/NOAA Prototype Map Service
10/28/2003MARFC/NWS/NOAA Prototype Map Service
10/28/2003MARFC/NWS/NOAA Prototype Map Service
10/28/2003MARFC/NWS/NOAA Status Single location –Lewistown on Juniata River Daily Background processing –After routine operations –Cron initiated –FLDWAV on Linux –FLDVIEW on HP WS
10/28/2003MARFC/NWS/NOAA 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
10/28/2003MARFC/NWS/NOAA 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
10/28/2003MARFC/NWS/NOAA 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
10/28/2003MARFC/NWS/NOAA 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
10/28/2003MARFC/NWS/NOAA 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
10/28/2003MARFC/NWS/NOAA What next? (cont’d) Internet map service selection User feedback –Design –Performance –User-friendliness
The End