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Thiago Quirino and S.G. Gopalakrishnan, AOML/NOAA Hurricane Research Division, Miami, FL

Advanced Post-Processing, Analysis & Display System for High Resolution HWRF-X system. 2005. Thiago Quirino and S.G. Gopalakrishnan, AOML/NOAA Hurricane Research Division, Miami, FL gopal@noaa.gov. 1990. Model & Post-Processor Development Team. Robert Rogers, HRD/AOML, Miami

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Thiago Quirino and S.G. Gopalakrishnan, AOML/NOAA Hurricane Research Division, Miami, FL

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  1. Advanced Post-Processing, Analysis & Display System for High Resolution HWRF-X system 2005 Thiago Quirino and S.G. Gopalakrishnan, AOML/NOAA Hurricane Research Division, Miami, FL gopal@noaa.gov 1990

  2. Model & Post-Processor Development Team Robert Rogers, HRD/AOML, Miami Kevin Yeh, CIMAS@HRD,AOML,Miami Xuejin Zhang, CIMAS@HRD,AOML,Miami Jian-Wen Bao, PSD, ESRL,boulder Varsha Sainani,CIMAS@HRD,AOML,Miami Altug Aksoy, HRD,AOML,Miami Acknowledgements: Frank Marks, HRD/AOML, Miami Sim Aberson, HRD/AOML, Miami Robert Atlas AOML, Miami ESRL JET, 2008

  3. Motivation ~ 600 184 mb • Driven by NOAA’s HFIP needs for multi-scale regional model operating down to 1 km resolution. • Interpolation from rotated lat/lon to lat/lon grid is inefficient at high resolution of 1-3 km. Must be very careful! • NMM-wrfpost uses “copygb” for interpolation without optimization taking several hours at 3-km resolution to complete! Frequent failures with addition of more variables. • Need a general data reader and visualization tools for model to model, model to observation comparison and multi-model ensembles at highest resolution. 27:9 40 mb 1640 mb 157 mb 9:3 1640 mb 9:3:1 157 mb 300mb ~ 600

  4. Post Processor: Diapost • One code, one executable all available within WRF framework (WRF application program interface) • Orders of magnitude faster than NMM-wrfpost (at 9 km takes <5 minutes for processing 3-h WRF output for 5 day forecast) • Provides binary/flat file data, GrADS control files compatible with GrADS. Also ASCII track information. • Grib files produced via HFIP output module. • Can be linked to official tracker via output module. Diapost.F90

  5. Capabilities • Horizontal: Native rotated lat/lon (minimum loss in information) and standard lat/lon and Cylindrical projection for inner core • Vertical: Native hybrid, standard pressure and height • Wind swaths, Deep-layer mean, Shear and other hurricane/environment specific variables • Inner core details: CFADs and Hovmöller diagrams

  6. Diapost Products Environmental Scale 150 Deep Layer Mean Track/Wind swath Shear 100 50 100 50 0 150 0 Tangential Wind Vortex Scale R-Z Mean Hovmöller 70 65 60 55 50 distance (km) 45 40 35 30 distance (km)

  7. Data Mining & Display system • Need advanced and unified framework for accessing and displaying observations, operational and research model data at highest resolution including ensemble output. • User-interactive interface to mine data and generate display for hurricane applications. • Input formats: NetCDF, ATCF and Grib* • Diapost output is geo-referenced. • Analogy: NOAA Operational Model Archive and Distribution System (NOMADS).

  8. Moving nest Track Comparisons Observation comparisons Global visualization Ensemble of Tracks

  9. Work in progress • More diagnostics on vortex scale (Doppler radar velocity and reflectivity). • Diapost works on netCDF output, however can be extended to work with WRF-binary outputs. • Visualization and data mining tool capable of reading Grib data as well (currently supports netCDF and ATCF format). • Wish list under development at this meeting!

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