DSCOVR |
DSCOVR |
Jan 6 2006, 08:55 PM
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#101
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
ADMIN NOTE: Please note that this topic was unavoidably poltical before the 'No Politics' rule. Please restrict future comments to the mission/spacecraft/news updates etc.
WHAT'S NEW Robert L. Park Friday, 6 Jan 06 Washington, DC DEEP SPACE CLIMATE OBSERVATORY KILLED. http://bobpark.physics.umd.edu/index.html -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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Mar 26 2016, 03:01 PM
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#102
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Senior Member Group: Members Posts: 1669 Joined: 5-March 05 From: Boulder, CO Member No.: 184 |
Here is an updated version of a synthesized Earth image using land and 3-D weather data (left) and the correponding DSCOVR image (right). I did tweak the color & intensity a bit on the DSCOVR image.
It's interesting that one can get a handle on what the Earth colors should be by considering that over the ocean, most of the signal is actually light scattered from the sky instead of from the water. We are in essence looking down at the sky (with its attendant Rayleigh scattering) and that is the main reason the Blue Marble is blue. There's also evidence the DSCOVR imagery (as posted on their web site) is contrast stretched since the recent solar eclipse has an oversized region around the umbra where all the details disappear. -------------------- Steve [ my home page and planetary maps page ]
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