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Terminal Hazardous Weather Detection and Forecasting with an Integrated Terminal Weather System (ITWS)

Terminal Hazardous Weather Detection and Forecasting with an Integrated Terminal Weather System (ITWS). Outline What is an ITWS Sensors, product generation algorithms, displays, locations Operational benefits Current deployment status. Dr. James Evans JIME@LL.MIT.EDU.

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Terminal Hazardous Weather Detection and Forecasting with an Integrated Terminal Weather System (ITWS)

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  1. Terminal Hazardous Weather Detection and Forecasting with an Integrated Terminal Weather System (ITWS) Outline • What is an ITWS • Sensors, product generation algorithms, displays, locations • Operational benefits • Current deployment status Dr. James Evans JIME@LL.MIT.EDU

  2. Roles/Responsibilities for Weather Avoidance • Pilot: Primary responsibility for weather avoidance • Air carrier aircraft generally has onboard weather radar • Airline dispatch: Determines flight route, fuel for alternative landing airport and can inform pilot if it is unsafe to land at an airport • Air traffic control: • Prime responsibility is radar based separation of aircraft from aircraft • Safe, efficient flow of traffic • Provides runway winds information and wind shear alerts (when available) • Will, on time available basis, provide weather information based on controller display of precipitation and/pilot reports and/or SIGMETs

  3. Integrated Terminal Weather System (ITWS) ATC user group « Rapid  Prototype» development qt FAA and airline facilities Fully automatic warnings of terminal weather hazards to nonmeteorologist users

  4. ITWS Situation Display Used by Air Traffic Control (and CWSU)

  5. ITWS Weather Data Inputs TDWR is a FAA wx radar; ASR9 is qn ATC radar with precipitation product

  6. Terminal Winds Data Sources

  7. Terminal Winds

  8. ITWS Website Interface Display for airline dispatch

  9. ITWS Coverage Relative to Urban Centers ITWS Coverage Map from National Geographic Magazine US Urban Development Pre-1993 - Intense Pre-1993 – Moderate Since 1993 – Intense Growth Since 1993 – Moderate Growth

  10. Estimated ATL ITWS Benefits Includes both holding and extra miles flown

  11. ITWS Installation Schedule CY 2002 CY 2003 CY 2004 CY 2005 CY 2006 CY 2007 CY 2008 CY 2009 Beyond CIP Raytheon Test Bed 02/02 WJHTC 04/02 Atlanta 5/02 Salt Lake City 03/09 New York 7/06 Cleveland 04/09 PSF 08/02 Memphis 10/06 FAAAC 08/02 Las Vegas (OEP) Dallas/Ft Worth 03/07 Cincinnati 03/08 Miami 10/02 Nashville Pittsburgh 04/08 Orlando 04/07 Kansas City 1/03 Wichita Phoenix 05/08 Houston 02/03 Detroit 06/07 Raleigh- Durham Philadelphia 06/08 St Louis 4/03 New Orleans Potomac 05/03 Indianapolis Chicago 06/03 Columbus Boston 06/04 TCWF Retrofits Tulsa Denver 7/04 San Juan Minneapolis 8/04 Louisville Charlotte 10/04 Oklahoma City Dayton Not Scheduled to be Installed under current CIP ITWS Support Systems Installed Prototype Systems Transition to Production System As of 7/12/05 Installed/CAI Complete Installation / CAI Scheduled Date

  12. ITWS Weather Forecast Augmentation Commenced FY ’04 ● Lincoln interactions with Raytheon underway - algorithm specification - software exhibit - test methodology and data sets ● Implementation expected 10/06 Past weather Current weather +60 min Forecast Time loops of past and predicted convective storm positions with real time indication of product accuracy Includes winter precipitation forecast

  13. ITWS Benefits Studies Benefits analysis will be a key input for the decision to deploy ITWS to the last 12 sites

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