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GLFE MEETING NO. 3 April 12, 2004 TAMDAR Future Deployment Plans

GLFE MEETING NO. 3 April 12, 2004 TAMDAR Future Deployment Plans & Sensor/Performance Improvements Mark Anderson. Agenda. Present and Future Deployment Plans Airline Incentives and Services Recent Performance Improvements Data Quality Improvements High Resolution Data

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GLFE MEETING NO. 3 April 12, 2004 TAMDAR Future Deployment Plans

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  1. GLFE MEETING NO. 3 April 12, 2004 TAMDAR Future Deployment Plans & Sensor/Performance Improvements Mark Anderson

  2. Agenda • Present and Future Deployment Plans • Airline Incentives and Services • Recent Performance Improvements • Data Quality Improvements • High Resolution Data • Improved AirDat Forecasting Results • Next Generation Sensor Design Improvements • Additional Sensor Certifications

  3. Present and future deployment plans • Mesaba deployment • Deployment completed on Jan. 15, 2005 • 50 aircraft currently flying • 70 cities being served • Horizon deployment • 67 aircraft currently flying • 43 cities being served • Expanding fleet • 80 aircraft will be equipped • Dash Q200s, Q400s, & CRJs

  4. Horizon/Mesaba route structure

  5. Present and future deployment plans • In final contract negotiations with Airlines #3, #4, and #5 • In preliminary discussions with several other carriers • Will provide complete CONUS coverage in addition to segments of Mexico and Canada • Working with Army and Air Force for initial equipage of UAV’s • Willing to support international deployments

  6. Active deployment plans

  7. Air carrier incentives and services • Essential to incentivize air carriers for equipage • Utilize TAMDAR data pipe and data center to provide: • OOOI times • Flight tracking • Aircraft systems monitoring • Text messaging • Voice (backup) communications • Antenna for cockpit weather • EFB interfaces

  8. TAMDAR airborne components Iridium/GPS/Wx Antenna Wx coax for optional weather cockpit display Iridium GPS (Coax) (Coax) Voice Com Option TAMDAR Sensor Transceiver/ Router Text Messaging Option (RS-232) Data Buss Converter Heading and Aircraft Systems Inputs Optional EFBs Note: Integrated antenna includes satellite weather reception

  9. Recent performance improvements • Improved QA systems and flagging of suspect data • Run internal AirDat forecasts to monitor sensor performance • Upgrading Delta Hound system to identify suspect performance • Meteorologist uses Delta Hound and other systems to monitor sensors • Firmware improvements • Hardware improvements

  10. Recent performance improvements • Improved temperature performance through characterization of probe thermal time lag • Incorporated compensation in TAMDAR firmware • Improved RH performance • Replacement of suspect sensors • Re-orientation of outboard RH sensor • Beginning use of RH sensor with hydrophobic filters • Plans to incorporate RH time lag compensation • Improved winds aloft flagging of suspect data • Upgraded sensor firmware to permit transmission of high frequency sampling data

  11. Increased sampling resolution • Original sampling was: • 10 hPa intervals on ascent and descent up to 100 hPa above ground level • 50 hPa intervals above 100 hPa above ground level • New, higher resolution sampling • Waited for improvements in temperature, RH, and winds • Initiated March 31, 2006 • 10 hPa intervals on ascent and descent up to 200 hPA above ground level • 25 hPa intervals above ground level • Expect sensor performance improvements and higher resolution to produce improved forecast modeling results

  12. Improved forecasting model results • Significant TAMDAR impact in AirDat/NCAR models • High resolution TAMDAR data permits increased model resolution (sigma levels) resulting in skill improvements of more than 20% • Improvements in precipitation forecast accuracy of 34-84% over various government models • Preliminary results suggest better long range (>96 hr) ground temperature forecasts • OSSE is underway • Optimization of TAMDAR data weighting • Optimization of geographic deployment

  13. Next generation design improvements • Change to entry/exit holes to sensor cavity • Reduced contamination • More reliable RH performance • Pitot and static tube restrictions • Reduction of noise on pitot and static measurements • Improved turbulence measurements/calculations • Incorporation of NCAR turbulence recommendations • Re-distribution of de-icing heating elements

  14. Next generation design improvements • Firmware upgrades • Ice accretion rate • Temperature correction during de-icing • Refinement of calibration constants • Refinement of algorithms at high speeds • Customized electronic filter time constants depending on properties of sensing element • Temperature • RH • Pressure

  15. Next generation design improvements • Extensive calibration at Rolls Royce wind tunnel • Speeds from Mach 0.40 to Mach 0.85 • Sensing cavity pressures • Pitot and static calibrations • Mach heating • High bandwidth data

  16. Aircraft certifications • Saab 340 completed • In progress: • Bombardier Q200 • Bombardier Q400 • CRJ 700 • Will soon begin: • ERJ 135, 140, and 145 • ERJ 170

  17. Summary • Extensive North American deployment underway • Multiple aircraft certifications in progress • Continuing improvement of sensor performance and forecasting results.

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