Thiago Quirino and S.G. Gopalakrishnan, AOML/NOAA Hurricane Research Division, Miami, FL...
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Transcript of Thiago Quirino and S.G. Gopalakrishnan, AOML/NOAA Hurricane Research Division, Miami, FL...
Thiago Quirino and S.G. Gopalakrishnan, AOML/NOAA Hurricane Research Division, Miami, [email protected]
Thiago Quirino and S.G. Gopalakrishnan, AOML/NOAA Hurricane Research Division, Miami, [email protected]
1990
2005
Advanced Post-Processing, Analysis & Display System for High Resolution HWRF-X system
Advanced Post-Processing, Analysis & Display System for High Resolution HWRF-X system
Model & Post-Processor Development Team
ESRL JET, 2008
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
~ 600
~ 600
Motivation
1640 mb
184 mb
40 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.
157 mb
1640 mb
157 mb
300mb
27:9
9:3
9:3:1
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
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
HovmöllerHovmöller
Tangential Wind
Deep Layer Mean
Deep Layer Mean
Track/Wind swathTrack/Wind swath
Environmental Scale
Vortex Scale
Diapost Products
ShearShear
R-Z MeanR-Z Mean
5010
015
00
3530
40
50
60
70
45
55
65
distance (km)
dis
tan
ce (
km)
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).
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!