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Friends and Partners NBAA 2003

This document outlines the ASOS Preplanned Product Improvements (P3I) for FAA Priorities, including processor upgrades, sensor enhancements, and algorithm improvements. It also provides information on funding allocations and milestones.

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Friends and Partners NBAA 2003

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  1. Friends and Partners NBAA 2003 JoAnn Y. Ford Manager, Aerospace Weather Standards Division, ARS-200 Aerospace Weather Policy and Standards Staff

  2. ASOS Preplanned Product Improvements (P3I)(FAA Priorities) • Processor Upgrade • Dewpoint Sensor • Ice Free Wind Sensor • Enhance Precipitation Identification • Improve Ceilometer & Sensor Algorithms • Improve Visibility Sensors & Algorithms • All Weather Precipitation Accumulation Gauge (AWPAG) • Snow Depth/Accumulation Sensor (Non-funded requirement)

  3. FY04 FAA allocation for ASOS P3I is $4M - Total FY04 baseline ASOS funding is $9.125M • FY05 FAA allocation for ASOS P3I is $7.5M - Total FY05 baseline ASOS funding is $12.625M

  4. ACU Processor Upgrades • Performance Parameter – Increase processing speed and memory to improve performance and allow new sensor upgrades • Processor prerequisite to PI sensor deployments • 135 of 883 installed as of 9/30/03 • Resolved Key Issue: a few sites were experiencing FAA/ALDARS Comms problems; now releasing additional processors for installation; est. all processors installed by 12/31/03

  5. ACU Processor Upgrade NWS/FAA Current NWS Baseline Milestone

  6. ASOS PI – Dewpoint Sensor • Phased deployment paced by ACU processor and FAA funding • 356 of 883 sites approved for phased deployment • 38 sites currently operating • 405 sensors delivered in 2002; 280 additional ordered September 2003 • Sensor performance to date is excellent

  7. Dewpoint Sensor NWS/FAA Current NWS Baseline Milestone

  8. Ultrasonic sensor No moving parts 0 to 125 knot range 1 knot, 1 degree resolution Accuracy + 2 knots/3% speed, + 4 degrees direction Controlled heating of transducers Selectable 1-30 second averaging ASOS to use 5 second speed, WMO Standard 3 second gust Manufacturer - Vaisala ASOS PI Ice Free Wind Sensor Improvement Description

  9. Ice Free Wind Sensor NWS/FAA Current NWS Baseline Milestone

  10. Contracts awarded July 11 to Optical Scientific and Vaisala for both COTS evaluation and development phases Deployment begins December 2005 ASOS PI – Enhanced Precipitation Identifier ASOS PI – Ceilometer Replacement • Acquisition plan, statement of work, specification in preparation • Solicitation to be issued by October 2003 • Contract awards for COTS evaluation phase to be made by June 2004 • Deployment begins August 2006

  11. Enhanced Precipitation Identifier NWS/FAA Current NWS Baseline Milestone

  12. Ceilometer Replacement NWS/FAA Current NWS Baseline Milestone

  13. ASOS Configuration Control Board (ACCB) Initiatives (not all-inclusive list) • Change thunderstorm reporting range thresholds for SPECIs • Freezing drizzle algorithm • Connect NWS ASOS sites to ADAS for ITWS • Modify pressure sensor yes/no prompt • Delete RVRNO code

  14. Automated Weather Sensor Developments • ALDARS Installation • ASOS RVR Modification • ASOS-ATIS Interface • Stand Alone Weather Sensors (SAWS)

  15. Friends and Partners Initiatives General Discussion • SPECI transmission anytime – testing will be completed at initial sites in December 2003; deployment to all 883 sites will take several months • AOP/AAF-1 letter was signed; ADAS integration into National Airspace Performance Reporting System (NAPRS) • ASOS Internet availability • Perceived Tower and SFC VSBY Discrepancies version 0.05

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