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Next Generation Air Transportation System (NextGen): Wx Integration
Ray Moy New Weather Concept Development Branch FAA, Aviation Weather Division, ANG-C62
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Outline
NextGen Implementation Plan Portfolios Common Services & Infrastructure: Weather NextGen ATM-Wx Integration Concept Levels of ATM-Wx Integration Weather Translation Example ATM Impact Conversion Example Decision Support Integration Activities and Goals
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Conversion into: • NAS Impacts • State Changes
Observations
Analyses
Forecasts
NextGen ATM-Wx Integration Concept
NextGen 4D Wx Data Cube
ATM Decision Support
ATM Impact Conversion
Weather Translation
Translation of weather data into: • Constraints • Threshold Events
Weather Information
DSTs use impacts to develop TFM solutions
Primary: NWS FAA Met FAA ATM
Weather Community ATM Community
Constraint info (e.g. wx avoidance)
Wx info Impact info (e.g. capacity)
Derive Constraint
Derive Impact
Set Solution
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Levels of ATM-Weather Integration
• Level Zero – No integration
• Level Four – Decision Support
• Level One – “On-the-Glass”
• Level Two – Translation
• Level Three – Impact
WEATHER ATM
RESPONSIBILITY
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Weather Translation Example
The process of taking weather data and combining it with other data
elements such as pilot behavior models, safety regulations, operating
thresholds, and historical demand information to identify potential
constraints in NAS operations due to weather.
— NAS Weather Constraint: a limitation on the ability of a given NAS
element (e.g., air route, sector) to reach its desired level of service due
to weather.
Improved Weather Forecast
Flig
ht A
ltitu
de –
Ech
o To
ps (1
6 km
)
0 10 20 30 40 50 60 70 80 90 100
100 90 80 70 60 50 40 30 20 10 0
-22
-18
-14
-10
-6 -
2 2
6
10
14
18 2
2 Pilot Deviation Model Forecasted Pilot Avoidance Regions
Weather Avoidance Field (WAF) 7
ATM Impact Conversion Example
Using information from the weather Translation function, converts it
into potential NAS impacts.
Weather Avoidance Field (WAF)
-10 min
+10 min
+20 min
0 min
FCAA05
11 12 13 14 15 16 17 18 19 20 21 22 23
11 81 96 78 38 72 85 78 68 40
12 90 78 46 64 88 91 82 39 37
13 89 57 71 76 88 84 66 28 20
14 88 85 81 86 89 74 51 17 20
15 96 88 85 90 70 47 16 19 49
16 90 61 65 68 28 6 13 30
17 77 67 69 63 20 9 17
18 78 61 54 59 19 3
19 50 36 29 33 20
20 30 10 13 16
21 11 5 7
22 6 4
23 6
Predicted Available A05 Capacity < 75% < 50%
FCA Capacity Forecast Matrix
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Decision Support
The fundamental goal of Decision Support is to provide overall NAS
optimization.
Impact data and state change information used to derive mitigation
options to deal with capacity/demand imbalances and provide “what-
if” capability for traffic managers – both in the strategic and tactical
time frames.
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Integration Activities and Goals
Coordinating with Portfolios (e.g., CATM, Improved Surface Operations, TBFM) to identify Wx shortfalls
The main goal of integrating weather into future decision support systems is to increase overall NAS efficiency by: — Standardizing the decision process and outcome (predictability)
— Ensuring full and continuous use of enhanced/automated tools during weather events
— Optimize use of airspace
— Facilitating a more proactive approach to traffic management
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