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GOES Direct Services

GOES Direct Services. Topics. Direct Broadcast Services GOES Data Collection Services Search and Rescue. GVAR / WEFAX. Primary customer interface Worldwide imagery & weather charts (WEFAX) WEFAX - low-cost & easy access GVAR - high resolution & continuous coverage Diverse customer base

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GOES Direct Services

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  1. GOES Direct Services

  2. Topics • Direct Broadcast Services • GOES Data Collection Services • Search and Rescue

  3. GVAR / WEFAX • Primary customer interface • Worldwide imagery & weather charts (WEFAX) • WEFAX - low-cost & easy access • GVAR - high resolution & continuous coverage • Diverse customer base • Web-based service and dissemination

  4. Global Receivers WMO Registrations (2001) • WEFAX = 4,900 • HR / GVAR = 930 Registration not required. Estimated numbers of receivers 2X or 3X or more (particularly WEFAX)

  5. Direct Readout Services GOES AND POES On the WWW at http://noaasis.noaa.gov

  6. GOES USER ASSISTANCE ASSIST EXTERNAL DIRECT READOUT USER COMMUNITY • Web - based services for station operators • Direct Services Division E/SP3 • Satellite Services Division E/SP2 • Office of Satellite Operations E/SO • Expect to continue in GOES-R era

  7. GOES PRODUCTS Near real-time access to NOAA GOES data: • Processed imagery via WWW and FTP • NOAA/NESDIS, NASA, University, Commercial • Imager and Sounder Products via WWW • NOAA/NESDIS (OSDPD, ORA) • University (Wisconsin/CIMSS, Colorado/CIRA)

  8. NOAA Data Collection Systems Satellite platforms Ground Station Processing Center Users

  9. GOES DCS • Data Relay System • Ground-based observing systems • Transmit to GOES satellite at scheduled times • Downlinked to ground stations (NOAA, etc.) • Rebroadcast to commercial satellite • Low-cost receivers • Available for download from NOAA • Transmitted through GTS circuits

  10. GOES DCS USERS • Government agencies • Environmental observations • Flood forecasting • Fire Detection and Monitoring • Volcano Monitoring • Earthquake/Tsunami Monitoring • Tide levels • Climate monitoring

  11. GOES DCS Users • USGS • DOI — Bureau of Reclamation, Bureau of Land Management • NWS, NDBC • NOS • USDA — Forest Service • Army Corps of Engineers

  12. GOES DCS USERS • Approximately 15,000 platforms • 100,000+ observations per day • Approximately 100 mb of data per day • 300 user agencies • Federal government • State/local government • International government agencies

  13. DCS Data Applications Analysis & Forecast 19% River Forecast 19% Seismic 2% Irrigation Control 3% Reservoir Management 16% Navigation 4% Fire Potential 6% Other 14% Improved DCS Ops 8% Water Quality Mont. 9%

  14. Oceanographic Observations Anchors: Moored Buoys+: Drifting BuoysX: Ocean Floats

  15. GOES Weather Facsimile (WEFAX) GOES M - Analog to Digital - Timeshare between analog and digital - Low Rate Information Transmission ( LRIT) CCSDS like protocol Multiple product transmission (64 kbps) Compatible with the Europeans and Japanese Ground system will require upgrades GOES N - Dedicated transponder - Full digital data stream - Improved product suite (128 kbps) - Ground system will require upgrades

  16. WEFAX (cont) GOES-R Era - Improved data rates (256 kbps) - Modulation change from BPSK to Off-set QPSK (OQPSK) - Downlink frequency change from 1693.4 MHz to 3 MHz higher (proposed)

  17. GOES Variable (GVAR) GOES M - 6.7 micron resolution changes - 8km to 4km - 12 micron channel replaced with 13.3 m channel - New format /Blackbody calibration changes GOES N - minor changes GOES R - New format - GOES Re-Broadcast data stream - Full imager and sounder data stream - Packetized data format - Downlink frequency TBD

  18. Emergency Managers Weather Information Network (EMWIN) GOES-M Era - Continue to share GOES transponder with WEFAX service - Test timeshare with LRIT service on non-operational GOES spacecraft GOES-N Era - Transmit on separate GOES transponder - Downlink frequency will change from 1690.725 MHz to 1692.7 MHz - Ground system will require upgrades - Data rate will be 9.6 kbps - Modulation changes from FSK to BPSK

  19. EMWIN (Cont) GOES-R Era - Downlink frequency changes to 1692.7 MHz or 3 MHz higher (proposed) - Date rate increase (56 kbps) - Ground system will require upgrades

  20. Search and Rescue - NESDIS manages and operates the U.S. portion of the International Cospas-Sarsat Program - Cospas-Sarsat provides, free-of-charge, distress alert and location information to search and rescue authorities anywhere in the world for maritime, aviation and land users in distress. - Over 250,000 406 MHz users currently - Over 900,000 406 MHz users expected by launch of GOES-R - 33 Countries formally part of Cospas-Sarsat

  21. Search and Rescue GOES Satellites POES Satellites Local User Terminal Rescue Coordination Center Mission Control Center Emergency Beacons

  22. Search and Rescue • Advantages of GOES: • - Near real-time detection for 406 MHz emergency beacons • - Near real-time location for 406 MHz beacons equipped with GPS • Advantages of POES: • - Doppler location for existing 406 MHz beacons • - Global coverage • - Increased reliability (due to changing geometry)

  23. Search and Rescue • Future Enhancements • - Phase out of 121.5/243 MHz Satellite Processing - - increased number of 406 MHz beacon users through GOES • Expanded use of GOES 406.0 – 406.1 MHz band through the introduction of new channels in the band • Possible two-way capability on GOES-R that would allow a return link to the emergency beacon user (option being studied)

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