High Above the Earth, Satellites Track Melting Ice (click title to entry - thank you)
The surest sign of a warming Earth is the steady melting of its ice zones, from disappearing sea ice in the Arctic to shrinking glaciers worldwide. Now, scientists are using increasingly sophisticated satellite technology to measure the extent, thickness, and height of ice, assembling an essential picture of a planet in transition....
by michael d. lemonick
July 6, 2010
UV Map
Local Time: 3:33 PM AKDT (GMT -08)
Lat/Lon: 58.8° N 137.0° W
Elevation :: 33 feet
Temperature :: 57 Fahrenheit
Conditions :: Overcast
Humidity :: 88%
Dew Point :: 54 Fahrenheit
Wind :: 5 mph from the ESE (East Southeast)
Pressure :: 30.40 inches (Steady)
Visibility :: 10.0 miles
UV :: 2 out of 16
Clouds :: Overcast 2000 feet
I find the UV index interesting. This is a higher latitude and nearer the north pole than the lower 48 states. I don’t recall Alaska having any significant UV exposure in the past. Hm. What has the ozone satellites looked like this year?
2009 Ozone Hole
Recent observations and several studies have shown that the size of the annual ozone hole has stabilized and the level of ozone-depleting substances has decreased by 4 percent since 2001. But since chlorine and bromine compounds have long lifetimes in the atmosphere, a recovery of atmospheric ozone is not likely to be noticeable until 2020 or later.
2006 Ozone Hole Satellite
The First Ozone Hole Satellite was 1979
1979 Ozone Hole Satellite
