1 Federal Aviation Administration Turbulence-related Efforts Within the FAA July 27, 2010 Interagency Weather Research Review Turbulence • Facilitator: Tammy Farrar, FAA Aviation Weather Group, Turbulence Project Lead • Speakers: – Bob Sharman, “FAA AWRP-sponsored Turbulence Nowcasts/Forecasts” – Wayne Feltz/Tony Wimmers, “Satellite- based Inferences/Convection” – John Williams, “NASA-Sponsored Research in Global DSS”
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1 Federal Aviation Administration Turbulence-related Efforts Within the FAA July 27, 2010 Interagency Weather Research Review Turbulence Facilitator: Tammy.
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• Current Deployment– UAL: Accelerometer-based algorithm on ~100 757’s– DAL: Improved winds-based algorithm on ~80 737-700/800’s– SWA: Winds-based algorithm currently on 10 737-700’s for testing.
Planned deployment on ~340 total aircraft– Efforts begun to deploy onto 767 fleets at UAL and DAL– Possible deployment onto CON(UAL) 737 fleet– Possible upgrade to UAL 757 algorithm
• UAL & DAL data displayed on Experimental Aviation Digital Data Service (ADDS) In Situ Turbulence Viewer– Access restricted to participating airlines at this time
• DAL EDR Proof of Concept Demo– On-going thru Jan 15, 2011
5Federal AviationAdministration
Turbulence-related Efforts Within the FAA
July 27, 2010
Average 24 hour EDR coverageUAL ~100 a/c
DAL ~80 a/c
SWA 10 a/c
Images courtesy Research Applications Laboratory, NCAR
Projected GTG releases – next 7 years (updated 1 Oct 2010)
Version Capabilities Op. date*/enter CMTDGTG1 Upper levels 3/2003*
RUC20GTG2 Improved GTG1 2/11/2010*
+Mid levels+Uses UAL in situ
GTG2.5 13 km WRFRR 7/2011 cutout grids+VWA insitu (UAL+DAL+SWA)
GTG3 13 km WRFRR native grids 3/31/2012+MWT+Optimized use of insitu+1-18 hrs
GTGN1 NTDA2/DCIT/insitu 6/30/2012GTG3mid+upper levels, 0-15 min
GTG4 Improved GTG3 FY15+Ensembles/Probabilistic forecasts+all altitudes, full WRFRR domain
GTGN2 NTDA3 FY15+GTG4+0-FL450, 0-1 hr
Global GTG Global – GFS based FY15
GTG5 Improved GTG4 FY17+CIT/HRRR
GTG6 Improved GTG5 FY19< FL650
GTG1
GTG2
GTG5
GTG3
GTG5
GTG4
Source: P. Lester, “Turbulence – Anew perspective for pilots,” Jeppesen, 1994