DSCOVR |
DSCOVR |
Jan 6 2006, 08:55 PM
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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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Feb 23 2016, 07:39 PM
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Senior Member Group: Members Posts: 1669 Joined: 5-March 05 From: Boulder, CO Member No.: 184 |
I've been doing some renderings of the Earth from increasing altitudes (up to 40000km so far), and comparing with DSCOVR imagery. I'm starting to think the DSCOVR images (have insufficient gamma correction or are too contrasty) as the ratio of green counts between bright clouds and ocean is about 6. This is between the linear and gamma corrected values. Same with blue with about a 3 or 4 ratio in the DSCOVR images. Thus the images are too contrasty between clouds & oceans compared with reality. Here is a DSCOVR image I'll elaborate on in the next post.
-------------------- Steve [ my home page and planetary maps page ]
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