15th Septmeber 2009
Chart 1
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Application of WAFS Products
Hans-Rudi Sonnabend
Lufthansa System Aeronautics GmbH
On behalf of IATA
15th Septmeber 2009
Chart 2
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Agenda
Introduction
Current application of WAFS products
UAD – HiRes Trial
New WAFS Products – New Opportunities
15th Septmeber 2009
Chart 3
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Introduction
Safety
Passenger Comfort
Environmental Impact
Economic
Other
15th Septmeber 2009
Chart 4
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Agenda
Introduction
Current application of WAFS products
UAD – HiRes Trial
New WAFS Products – New Opportunities
15th Septmeber 2009
Chart 5
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Current application of WAFS products
UAD
Flight plan and fuel calculation
SIGWX as charts and in BUFR code formDispatcher information and crew briefing
15th Septmeber 2009
Chart 6
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Optimization process is separated in horizontal- and vertical forward optimization
Current application of WAFS products
Supported Optimization criteria:
MFT (minimum fuel track)
MTT (minimum time track)
MCT (minimum cost track)
MDT (minimum distance track)
Fixed or user defined tracks (predefined routes, OTS-tracks, route definition etc.)
Free Flight
15th Septmeber 2009
Chart 7
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Current application of WAFS products
15th Septmeber 2009
Chart 8
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Meteorological Data Products – Wind Chart
15th Septmeber 2009
Chart 9
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Meteorological Data Products – Cross Section
15th Septmeber 2009
Chart 10
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Meteorological Data Products – Wind Components
15th Septmeber 2009
Chart 11
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Meteorological Data Products – Icing Probability
15th Septmeber 2009
Chart 12
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Meteorological Data Products – SIGWX Chart
15th Septmeber 2009
Chart 13
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Agenda
Introduction
Current application of WAFS products
UAD – HiRes Trial
New WAFS Products – New Opportunities
15th Septmeber 2009
Chart 14
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
UAD – HiRes Trial
Proposal for UAD improvement (WAFSOPSG/3 2006)
vertical resolution ― addition of two levels between FL 300 and 400-(12 hPa-levels + maxwind + tropopause)
horizontal resolution ― improvement to 60 km (appr. 0.5 degree)
temporal resolution ― increase to 3 hours or less (11 forecasts)
15th Septmeber 2009
Chart 15
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
UAD – HiRes Trial
HiRes Trial Conclusion:
Thinned GRIB as currently used, does lose details of the original forecast
A horizontal resolution of 0.625 degree does not have significant different results than the horizontal resolution of 1.25 degree
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)
Influence of Maxwind and Tropopause level is lower than the statistical standard deviation
HiRes-Data is more consistent
15th Septmeber 2009
Chart 16
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
UAD – HiRes Trial
HiRes Trial Recommendation:
Replace Thinned GRIB by a regular grid net
Introduce a 3 hourly temporal resolution
Keep the horizontal resolution by 1.25 degree in longitude and latitude
Add three additional levels between FL240 and FL400 (not included in the project)
15th Septmeber 2009
Chart 17
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Agenda
Introduction
Current application of WAFS products
UAD – HiRes Trial
New WAFS Products – New Opportunities
15th Septmeber 2009
Chart 18
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities
UAD in GRIB2:
Regular grid net
3 hourly temporal resolution
Horizontal resolution 1.25 x 1.25 degree in longitude and latitude
Add three additional levels between FL240 and FL400
15th Septmeber 2009
Chart 19
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities
Advantages of UAD in GRIB2:
No loss of accuracy by thinning the grid
Improved description of rapid changes in the atmosphere
Improved forecast in the jet stream level band and for drift down
No changes in the weather products for dispatcher and pilots
15th Septmeber 2009
Chart 20
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities
Disadvantages of UAD in GRIB2:
Longer distribution time
More storage capacity required
Possible more hardware performance required
Possible longer calculation time for optimization
New data decoder needed
15th Septmeber 2009
Chart 21
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities
Additional WAFC gridded forecast:
icing
turbulence
cumulonimbus (CB) clouds
15th Septmeber 2009
Chart 22
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities
Icing forecast:
Replacement of the simplified icing probability charts by more precise forecasts
Consideration of potential icing areas in optimistation for ETOPS flights
Once the reliability of the icing forecasts is approved, a reduction of the icing fuel penalties can be requested
15th Septmeber 2009
Chart 23
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities
Turbulence and CB forecast:
Improved SIGWX information for dispatcher and pilots
Avoidance option in optimisation possible
Information also useable in EFB
15th Septmeber 2009
Chart 24
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities
Turbulence Avoidance:
Passenger comfort
Reduction of turbulence induced incidents with injuries
Reduction of aircraft maintenance
Avoiding turbulence during planning has no significant impact in fuel, costs and flight time,
(Pre-requisit: Forecast is reliable)
15th Septmeber 2009
Chart 25
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities
15th Septmeber 2009
Chart 26
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities
15th Septmeber 2009
Chart 27
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
New WAFS Products – New Opportunities
Turbulence Avoidance:
Flying under or over turbulence area
Flying around turbulence area
Additional fuel in the exampel 300 KG (under) resp. 1200 KG (around)
15th Septmeber 2009
Chart 28
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Thank you for your attention !
15th Septmeber 2009
Chart 29
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
15th Septmeber 2009
Chart 30
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
15th Septmeber 2009
Chart 31
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
MET Services
15th Septmeber 2009
Chart 33
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Algorithm to calculate wind component and temperature for a segment
Current application of WAFS products
15th Septmeber 2009
Chart 34
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Current application of WAFS products
The upper air data contain the following flight planning relevant information in a grid resolution of 1.25 x 1.25 degree:
hPa 100 Wind, TemperaturehPa 150 Wind, TemperaturehPa 200 Wind, TemperaturehPa 250 Wind, TemperaturehPa 300 Wind, TemperaturehPa 400 Wind, TemperaturehPa 500 Wind, Temperature, rel. HumidityhPa 600 Wind, Temperature, rel. HumidityhPa 700 Wind, Temperature, rel. HumidityhPa 850 Wind, Temperature, rel. Humidity
Tropopause Level Height, Temperature
Maxwind Level Height, Wind
15th Septmeber 2009
Chart 35
WAFS Workshop – Paris 2009MET Services, Hans-Rudi Sonnabend
Current application of WAFS products
TO_WPT FROM_WPT Costs
ABC
DEPDEPDEP
212523
AA
EB
5240
CG 45BB
EF
4953
GG
FJ
7379
EE
KH
8475
FF
HI
7067
II
LM
9685
HL 86JM 119KO 117KL 109MQ 115LP 118QDEST 134OP 136PDEST 130
DEP DEST
16
40
19
12
19
J
28
34
I14
17
O33
25
Q30
P32
F24
28
D
E
19
31
G22
A
B
C
2125
23
H
K
35
26L
M18
29
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