Goes West - Western US Regional Satellite Directory 2
| Billings, Montana |
Boise, Idaho |
Elko, Nevada |
Eureka, California |
|
 |
 |
 |
 |
|
VIS |
AVN |
WV |
FOG |
VIS |
AVN |
WV |
FOG |
VIS |
AVN |
WV |
FOG |
VIS |
AVN |
WV |
FOG |
|
|
|
|
| Flagstaff, Arizona |
Glasgow, Montana |
Great Falls, Montana |
San Joaquin Valley, CA |
|
 |
 |
 |
 |
|
VIS |
AVN |
WV |
FOG
|
VIS |
AVN |
WV |
FOG
|
VIS |
AVN |
WV |
FOG
|
VIS |
AVN |
WV |
FOG
|
|
|
|
|
| Las Vegas, Nevada |
Los Angeles, California |
Medford, Oregon |
Missoula, Montana |
|
 |
 |
 |
 |
|
VIS |
AVN |
WV |
FOG
|
VIS |
AVN |
WV |
FOG
|
VIS |
AVN |
WV |
FOG
|
VIS |
AVN |
WV |
FOG
|
|
|
|
|
| Pendleton, Oregon |
Phoenix, Arizona |
Pocatello, Idaho |
Portland, Oregon |
|
 |
 |
 |
|
|
VIS |
AVN |
WV |
FOG
|
VIS |
AVN |
WV |
FOG
|
VIS |
AVN |
WV |
FOG
|
VIS |
AVN |
WV |
FOG
|
|
|
|
|
| Reno, Nevada |
Sacramento, California |
Salt Lake City, Utah |
San Diego, California |
|
 |
 |
 |
 |
|
VIS |
AVN |
WV |
FOG
|
VIS |
AVN |
WV |
FOG
|
VIS |
AVN |
WV |
FOG
|
VIS |
AVN |
WV |
FOG
|
|
|
|
|
| San Francisco, California |
Seattle, Washington |
Spokane, Washington |
Tucson, Arizona |
|
 |
 |
 |
 |
|
VIS |
AVN |
WV |
FOG
|
VIS |
AVN |
WV |
FOG
|
VIS |
AVN |
WV |
FOG
|
VIS |
AVN |
WV |
FOG
|
|
|
|
|
|
|
| Abbreviation |
Full Name |
Description |
| ♣ VIS |
Visible |
Unenhanced Visible imagery that transitions to IR2 overnight.
|
| ♣ AVN |
Aviation |
Aviation color enhancement satellite where colors are designated with how cold the clouds are.
|
| ♣ WV |
Water Vapor |
Shows the movement of water vapor moisture in the upper and middle level of the atmosphere.
|
| ♣ FOG |
FOG |
The vis/fog satellite images are generated from visible geostationary satellite images and is enhanced by brightness during local daylight hours, and from a derived "fog" image at night that emphasizes the low clouds.
During the day the visible image is brightness normalized by dividing by the cosine of the solar zenith angle. This removes most of the image dependence on sun angle, such as brightness changes at sun rise and sun set and differences between winter and summer image brightness. The visible brightness depends primarily on the thickness of the cloud. The visible image is used when the sun is higher than 3 degrees above the horizon.
At night there are no visible images, so a derived "fog" image is substituted for the visible. The "fog" image is generated from the temperature difference between the 3.7 micron images and the 11 micron infrared images.
|
|