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Polar WEFAX Products
The Polar WEFAX product site consists of 44 images which have a 16 tone linear grayscale. WEFAX products are broadcast according to a master schedule found on the Computer Operations Branch main page. These images are the result of several individual orbital treks, and so the images may appear a little disjointed. The polar WEFAX images are either on a mercator projection (resolution 5.8 km) or on a polar stereographic projection (resolution 11.99 km), and are in the visible, IR daytime, or IR nighttime bands.
NOTE: The brightness values for images 43 and 44 have been toned down because these regions are very cold (in other words, a brightness value which would normally appear white will appear light gray on these images).
The following list gives a description of each polar WEFAX image. Click on the image number you would like to see:
W001:
visible; image time 0100 - 0700 GMT.
W007:
IR daytime; image time 0200 - 0800 GMT.
W024:
IR nighttime; image time 1300 - 1900 GMT.
North Atlantic Ocean, western Europe and western Africa
W022:
visible; image time 1300 - 1900 GMT.
W028:
IR daytime; image time 1300 - 1900 GMT.
W003:
IR nighttime; image time 0200 - 0800 GMT.
Australia and New Zealand, Pacific islands
W002:
visible; image time 0100 - 0700 GMT.
W008:
IR daytime; image time 0200 - 0800 GMT.
W025:
IR nighttime; image time 1300 - 1900 GMT.
Southern Atlantic Ocean, South America
W023:
visible; image time 1300 - 1900 GMT.
W029:
IR daytime; image time 1300 - 1900 GMT.
W004:
IR nighttime; image time 0200 - 0800 GMT.
Middle East, central Asia, India
W013:
visible; image time 0800 - 1400 GMT.
W019:
IR daytime; image time 0700 - 1300 GMT.
W036:
IR nighttime; image time 0900 - 0100 GMT.
South Africa, Madagascar, Indian Ocean
W014:
visible; image time 0800 - 1400 GMT.
W020:
IR daytime; image time 0800 - 1400 GMT.
W037:
IR nighttime; image time 1900 - 0100 GMT.
Southern Pacific Ocean
W035:
visible; image time 1900 - 0100 GMT.
W041:
IR daytime; image time 2000 - 0200 GMT.
W016:
IR nighttime; image time 0700 - 1300 GMT.
Western North America, eastern Pacific Ocean
W034:
visible; image time 1900 - 0100 GMT.
W040:
IR daytime; image time 2000 - 0200 GMT.
W015:
IR nighttime; image time 0700 - 1300 GMT.
Arctic region
W043:
IR daytime; image time 0200 - 0700 GMT.
Antarctic region
W044:
IR daytime; image time 2000 - 0200 GMT.
W005:
visible; image time 0100 - 0600 GMT.
W009:
IR daytime; image time 0100 - 0600 GMT.
W027:
IR nighttime; image time 1300 - 1700 GMT.
Equatorial Atlantic Ocean, western Africa, eastern South America
W026:
visible; image time 1300 - 1700 GMT.
W030:
IR daytime; image time 1300 - 1700 GMT.
W006:
IR nighttime; image time 0100 - 0600 GMT.
India and southeast Asia, Indian Ocean
W010:
visible; image time 0500 - 1000 GMT.
W012:
IR daytime; image time 0500 - 1000 GMT.
W032:
IR nighttime; image time 0500 - 1000 GMT.
Central America and northern South America
W031:
visible; image time 1800 - 2200 GMT.
W033:
IR daytime; image time 1800 - 2200 GMT.
W011:
IR nighttime; image time 0400 - 0900 GMT.
Africa and Saudi Arabia, western Indian Ocean
W017:
visible; image time 0900 - 1300 GMT.
W021:
IR daytime; image time 0900 - 1300 GMT.
W039:
IR nighttime; image time 1900 - 0100 GMT.
Mexico, Hawaii, equatorial Pacific Ocean
W038:
visible; image time 2200 - 0200 GMT.
W042:
IR daytime; image time 2200 - 0200 GMT.
W018:
IR nighttime; image time 0800 - 1300 GMT.
Go backto the Image Products Home Page.
Other Polar Imagery Products:
Composite Mapped Mosaic Imagery
Global Vegetation Index Products
Coastwatch Imagery
2 km Continental U.S. Imagery
AMSU
Derived Composite Imagery
SSM/I
Derived Composite Imagery
Questions
or comments?
Contact
Joseph Askew (Joseph.Askew@noaa.gov)
Last
revised: April 17, 2003 (RR)