Date/Time Issued: May 12, 2020 0030Z

Product(s) or Data Impacted: NOAA-15 and NOAA-19 AVHRR data over Alaska Region

Date/Time of Initial Impact: May 14, 2020 1808Z  J/Day 134

Date/Time of Expected End: September 15, 2020 

Length of Event:  See details below; roughly 4 months

Details/Specifics of Change:

NESDIS Office of Satellite and Product Operations (OSPO) engineers will deactivate switching for NOAA-15 and NOAA-19 AVHRR Channel 3A / 3B for the period of May 14, 2020 to September 15, 2020.  Switching to Channel 3A will not occur during this period over the predefined box encompassing the Alaska Region (box coordinates 50°N to 75°N and 173°E to 135°W).  NOAA-15 and NOAA-19 AVHRR will remain in Channel 3B (3.7 microns) to support fire detection and monitoring activities over Alaska Region.

Last NOAA-15 contact 15  F  14445  May 14, 2020 135/20:15:00  135/20:22:37  457

Last NOAA-19 contact 19  F  528  May 14, 2020 135/18:00:30  135/18:08:19  469

Channel switching will start after Sept 15, 2020 for the end of fire season.  A reminder notification will be sent.

The coordination for the activation and deactivation of switching for NOAA-15 and NOAA-19 AVHRR Channel 3A / 3B is a collaborative effort between NESDIS OSPO, National Weather Service (NWS) Alaska Region, University of Alaska - Geographic Information Network of Alaska (GINA), and the NWS Fire Weather Service Manager and is intended to seasonally optimize the Fire Weather and Cryosphere observing posture for Alaska.

Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov and 301-817-3880

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