Bob Gall November 8, 2011 Miami, FL - HFIP...Introductory Comments Bob Gall November 8, 2011 Miami,...
Transcript of Bob Gall November 8, 2011 Miami, FL - HFIP...Introductory Comments Bob Gall November 8, 2011 Miami,...
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Introductory Comments
Bob Gall
November 8, 2011
Miami, FL
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HFIP Schedule
• Nov 2011 – Start annual report
• Dec 2011 – Start the milestone process and publications
• Jan 2012 – Begin retro testing for Stream 1.5 candidates
• Feb 2012 – Final annual report and publication manuscripts
• March 2012 – Finish milestone document (by teams)
• March 2012 – Develop organization milestones
• March – June 2012 – Funding letters to organizations
• April 15 – Stream 1.5 retro tests complete and submitted to TCMT
• May 31 – NHC decision on Stream 1.5 candidates
• June 1 – Begin prep. For 2012 hurricane season real-time runs
• July 7 – Begin setting up real-time reservations on t-jet, u-jet
• July 15 – 22 – Full up test of real-time system (using retro runs?)
• Aug 1 – Real time system officially running
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2012 HFIP Priorities
• Computing
– Continued development of the Experimental Numerical Forecast System (Real-Time) during hurricane season on T-jet
o New paradigm for NWS transitioning research to operations
• Operational Commitments
– Work with NCEP to make the global hybrid DA operational
– Continue the coordinated community effort to improve HWRF
• Development
– Development of the hybrid system (the NCEP system) for
regional models
• Develop methods to include more satellite data near
hurricane core
– Develop a physics package suitable for 3 KM models
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The HFIP Project –
Vision/Goals
• Vision o Organize the hurricane community to dramatically
improve numerical forecast guidance to NHC in 5-10 years
• Goals o Reduce numerical forecast errors in track and
intensity by 20% in 5 years, 50% in 10 years
o Extend forecasts to 7 days
o Increase probability of detecting rapid intensification at day 1 to 90% and 60% at day 5
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Position Error (km) Intensity Error (kt)
Performance of the 2011 PSU WRF-EnKF Real-time Forecasts with assimilation of P3 airborne radar (Irene 7 + Rina 5)
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Position Error (km) Intensity Error (kt)
Updated Performance of the PSU WRF-EnKF during 2008-2011 with assimilation of P3 airborne radar
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Track Error of Models (% Improvement over HFIP Baseline)
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HFIP Promising Early Results
Some Stream 1.5 models (COQI and SPC3) significantly outperformed the operational models and NHC for the 2011 season through mid September (includes Irene)
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HFIP Promising Early Results
Some Stream 1.5 models (COQI and SPC3) significantly outperformed the operational models and NHC for the 2011 season through mid September (includes Irene)
HFIP
Baseline
HFIP 20% Goal
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Examples of products from HFIP models
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Example of an Ensemble Forecast
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Example of an Ensemble Forecast
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Irene 000Z August 23, 2011
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Irene 000Z August 23, 2011
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HFIP Global Ensemble Forecast for Irene
Starting at 1200Z August 18, 2011
Forecast lead time in days
Ellipse includes
80% of members
Irene named
•Irene declared an investigation area at 1200Z on August 18, 2011
•Irene named at 0000Z August 21, 2011
•Initial indication of the formation of Irene from ensemble at 00Z August 16, 2011 •2 days before it was declared an investigation area
•5 days before it was named
Ensemble
mean track
Observed Track (Aug 21 – 26)
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7 Day Ensemble Forecast (Irene August 16, 2011)
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7 Day Ensemble Forecast (Irene August 18, 2011)
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EnKF Ensemble (Untracked Storms)
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EnKF Ensemble (Tracked Storms)
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EnKF Ensemble (Tracked Storms)
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NCEP Ensemble
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7 day forecast genesis for
Irene—70%
Became Harvey
Wave that became Irene
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Ensemble track-based probabilistic
genesis guidance
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NCEP Ensemble
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• http://www.esrl.noaa.gov/psd/forecasts/gfsenkf/
• http://www.ral.ucar.edu/projects/hfip/d2011/
• http://ruc.noaa.gov/tracks/
• http://www.emc.ncep.noaa.gov/gmb/tpm/emchur
r/tcgen/
• http://www.hfip.org/ (go to related links)
• http://www.emc.ncep.noaa.gov/gmb/tpm/emchur
r/gfs_gen/ (change gfs gen to tcgen)