Application of WAFS Products HansRudi Sonnabend Lufthansa System
Application of WAFS Products Hans-Rudi Sonnabend Lufthansa System Aeronautics Gmb. H On behalf of IATA 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
Agenda Introduction Current application of WAFS products UAD – Hi. Res Trial New WAFS Products – New Opportunities 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
Introduction n Safety n Passenger Comfort n Environmental Impact n Economic n Other 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
Agenda Introduction Current application of WAFS products UAD – Hi. Res Trial New WAFS Products – New Opportunities 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
Current application of WAFS products n UAD Flight plan and fuel calculation n SIGWX as charts and in BUFR code form Dispatcher information and crew briefing 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
Current application of WAFS products n Optimization process is separated in horizontal- and vertical forward optimization n Supported Optimization criteria: n MFT (minimum fuel track) n MTT (minimum time track) n MCT (minimum cost track) n MDT (minimum distance track) n Fixed or user defined tracks (predefined routes, OTS-tracks, route definition etc. ) n Free Flight 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
Current application of WAFS products 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
Meteorological Data Products – Wind Chart 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
Meteorological Data Products – Cross Section 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
Meteorological Data Products – Wind Components 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
Meteorological Data Products – Icing Probability 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
Meteorological Data Products – SIGWX Chart 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
Agenda Introduction Current application of WAFS products UAD – Hi. Res Trial New WAFS Products – New Opportunities 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
UAD – Hi. Res Trial Proposal for UAD improvement (WAFSOPSG/3 2006) n vertical resolution ― addition of two levels between FL 300 and 400(12 h. Pa-levels + maxwind + tropopause) n horizontal resolution ― improvement to 60 km (appr. 0. 5 degree) n temporal resolution ― increase to 3 hours or less (11 forecasts) 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
UAD – Hi. Res Trial Conclusion: n Thinned GRIB as currently used, does lose details of the original forecast n A horizontal resolution of 0. 625 degree does not have significant different results than the horizontal resolution of 1. 25 degree n A temporal resolution of 3 hours does give some differences although this is not remarkable (Reason: the trial was performed in a season with low variation in the atmosphere) n Influence of Maxwind and Tropopause level is lower than the statistical standard deviation n Hi. Res-Data is more consistent 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
UAD – Hi. Res Trial Recommendation: n Replace Thinned GRIB by a regular grid net n Introduce a 3 hourly temporal resolution n Keep the horizontal resolution by 1. 25 degree in longitude and latitude n Add three additional levels between FL 240 and FL 400 (not included in the project) 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
Agenda Introduction Current application of WAFS products UAD – Hi. Res Trial New WAFS Products – New Opportunities 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities UAD in GRIB 2: n Regular grid net n 3 hourly temporal resolution n Horizontal resolution 1. 25 x 1. 25 degree in longitude and latitude n Add three additional levels between FL 240 and FL 400 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities Advantages of UAD in GRIB 2: n No loss of accuracy by thinning the grid n Improved description of rapid changes in the atmosphere n Improved forecast in the jet stream level band for drift down n No changes in the weather products for dispatcher and pilots 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities Disadvantages of UAD in GRIB 2: n Longer distribution time n More storage capacity required n Possible more hardware performance required n Possible longer calculation time for optimization n New data decoder needed 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities Additional WAFC gridded forecast: n icing n turbulence n cumulonimbus (CB) clouds 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities Icing forecast: n Replacement of the simplified icing probability charts by more precise forecasts n Consideration of potential icing areas in optimistation for ETOPS flights n Once the reliability of the icing forecasts is approved, a reduction of the icing fuel penalties can be requested 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities Turbulence and CB forecast: n Improved SIGWX information for dispatcher and pilots n Avoidance option in optimisation possible n Information also useable in EFB 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities Turbulence Avoidance: n Passenger comfort n Reduction of turbulence induced incidents with injuries n Reduction of aircraft maintenance n Avoiding turbulence during planning has no significant impact in fuel, costs and flight time, (Pre-requisit: Forecast is reliable) 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities Turbulence Avoidance: n Flying under or over turbulence area n Flying around turbulence area n Additional fuel in the exampel 300 KG (under) resp. 1200 KG (around) 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
Thank you for your attention ! 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
MET Services
Current application of WAFS products Algorithm to calculate wind component and temperature for a segment 15 th Septmeber 2009 Chart WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
Current application of WAFS products n The upper air data contain the following flight planning relevant information in a grid resolution of 1. 25 x 1. 25 degree: h. Pa 100 h. Pa 150 h. Pa 200 h. Pa 250 h. Pa 300 h. Pa 400 h. Pa 500 h. Pa 600 h. Pa 700 h. Pa 850 Tropopause Level Maxwind Level 15 th Septmeber 2009 Chart Wind, Temperature Wind, Temperature, rel. Humidity Wind, Temperature, rel. Humidity Height, Temperature Height, Wind WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend
Current application of WAFS products internal worklist D K 33 A 21 E 31 19 25 B 35 26 24 F 28 DEP H 17 14 22 G 34 J 16 Chart 32 P 12 18 40 C 15 th Septmeber 2009 19 L 29 I 28 23 O 25 WAFS Workshop – Paris 2009 MET Services, Hans-Rudi Sonnabend M 30 Q 19 DEST TO_WPT FROM_WPT Costs A B C E B G E F F J K H H I L M O L Q P DEST DEP DEP A A C B B G G E E F F I I H J K K M L Q O P 21 25 23 52 40 45 49 53 73 79 84 75 70 67 96 85 86 119 117 109 115 118 134 136 130
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