Friends of Aviation Weather Next slide Michael S. Lewis October, 2004

The Basic Objective of Air Traffic Management Enable as many vehicles and vehicle types as possible to safely avoid Other traffic Hazardous weather/airspace Terrain and obstacles while taking the user’s most preferred route and schedule and by using the most cost-effective infrastructure necessary 11/27/2018

Common Information Network Layers/Components of Network Centric ATM “Exploiting Commonly Shared Precision Information” DHS/ Security FAA Airlines DoD Others Operations Applications Air Space Management Flight Ops Management Flow Management Traffic Management Separation Management Network Common Information Network Security Info Flight Object SWIM Schedule Trajectory/Intent Core Functions Communication Navigation Surveillance Weather World ADS-B SF21 Radars Capstone Multi-Lat SDN HITS TCAS Etc. GAL LORAN TACAN DR VASI MLS ADF Etc. GPS INS VOR DME ILS WAAS LAAS NCWF TCWF CIP/FIP C&V ITWS RUC MDCRS Etc. WARP GIWS OASIS TDWR LLWAS ASOS/AWOS NLDN TAWS EFB DTED SRTM Etc. ACARS VDL2 VDL3 Mode S ADS-A ADS-B Connexion Etc. Systems Development Capabilities Tools & Models A/C Integration Plan NEO Expertise Cost Benefit Analysis Safety Analysis Systems Engineering Other R&D 11/27/2018

JPDO Weather IPT Framework Swim/ Data Architecture and Communications Operational Applications/Use Value-added Products 5-D Atmosphere Forecasts Observations 11/27/2018

Components of the 5-D Atmosphere Turbulence Icing Hail Winds Wake Vortices Volcanic Ash Space/Radiation Surface Winter wx Temperatures Braking action 5-D Atmosphere 11/27/2018

Weather needs Precise 5-D encapsulation Better forecasts, predictability Wake vortex knowledge Improved handling of uncertainty Data and information sharing Integrated use of weather info in ATM operations Matched forecasts and aircraft capability 11/27/2018

Project Development Areas Policy Systems engineering Improved observations Forecasting/Probability Algorithm Development SWIM architecture Communications ATM automation systems integration Operational applications Economic analysis 11/27/2018

Example Desired Metrics Continually increasing %/volume of atmosphere useable for air traffic flow/operations Continually decreasing %/volume of uncertainty buffers Continually decreasing variability of forecast over time .5,1,1.5,2 hour forecast accuracy Infrastructure costs Continually increasing % time runway availability Continually decreasing weather incidents, injuries, accidents 11/27/2018