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Winds: Issued 8/1/01 From: "Thomas Renkevens" <Thomas.Renkevens@xxxxxxxx> Attention Users of GOES-8 High Density Winds: Beginning at 18Z on August 6th ,2001 the GOES-8 high density winds schedule will be adjusted to mitigate the effect caused by the potential loss of one Southern Hemisphere image every hour during the Convection and Moisture Experiment (CAMEX) study (August 1st - October 1st, 2001 - see previous email, or excerpts below). During this time period, a new scanning schedule for GOES-8 will be available (but not run continuously) which will allow for the hourly generation of rapid scan cloud drift winds. The new schedule will be initiated when tropical activity occurs within the GOES-8 Continental United States (CONUS) scan area, which will replace the Southern Hemisphere scan at XX:39 with a CONUS image at XX:39 when in effect. The modified GOES-8 high density winds schedule will result in the use of 60-minute interval imagery for the generation of GOES-8 Southern Hemisphere Cloud Drift winds and Water Vapor winds. Past studies have indicated that use of this image time interval will result in an overall reduction in the number of vectors produced for the Southern Hemisphere Cloud Drift winds by approximately 30%. For more information on the CAMEX study please consult Chris Velden (chrisv@xxxxxxxxxxxxx). All questions pertaining to the NESDIS/SSD high density winds operations should be directed to Regis Walter (Regis.Walter@xxxxxxxx) or Kyle Turner (Kyle.Turner@xxxxxxxx) --------- Below are excerpts from a previous email concerning CAMEX scheduling effects for GOES-8: The CAMEX schedule will be 'available', but not continuously in effect, from: 0045Z on August 1, 2001 through 0045Z on October 01, 2001. In contrast to the GOES-10 scanning schedule employed in January through March of 2001 for the PACJET/GWINDEX experiment, this CAMEX schedule will NOT run continuously, but will be initiated when tropical activity is within the GOES-8 CONUS scanning area (see http://www.ssd.noaa.gov/PS/SATS/GOES/EAST/sched.html for an image of this area). Once tropical activity is no longer within the CONUS area, GOES-8 will resume back to the routine or other scanning schedule. When activated, this CAMEX schedule will differ from the routine GOES-8 scanning strategy as follows: The Southern Hemisphere image that is scanned hourly at xx:39 will be replaced with a Continental United States (CONUS) sector. When in effect, this CAMEX schedule will result in having typically only one Southern Hemisphere image an hour at xx:09, and will increase the typical coverage over the CONUS area to 5 times per hour at xx:02, xx:15, xx:32, xx:39, xx:45, (except for 06:39Z, 12:39Z, and 18:39Z which are housekeeping periods on GOES-8). Note that the Northern Hemisphere sector, which scans to 20 degrees south latitude, covering much of South America, will not be affected by this CAMEX schedule. In the event of operational considerations, this CAMEX schedule can and will be changed to either the routine scanning, RSO scanning, or SRSO scanning. If there are further questions, please contact me. Tom Renkevens Satellite Analysis Branch Satellite Services Division NOAA/NESDIS/OSDPD 301-763-8081 x109 thomas.renkevens@xxxxxxxx [End of message from WXSAT-L] ---------- End Forwarded Message ----------
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