Commons:Featured picture candidates/File:Deepwater Horizon oil spill - May 24, 2010.jpg

File:Deepwater Horizon oil spill - May 24, 2010.jpg, featured

Voting period is over. Please don't add any new votes.Voting period ends on 15 Jun 2010 at 04:57:29 (UTC)
Visit the nomination page to add or modify image notes.

Featured picture candidates/File:Deepwater Horizon oil spill - May 24, 2010.jpg Commons:Featured picture candidates/File:Deepwater Horizon oil spill - May 24, 2010.jpg

•  Info created by NASA - uploaded by AgnosticPreachersKid - nominated by The High Fin Sperm Whale -- The High Fin Sperm Whale 04:57, 6 June 2010 (UTC)
•  Support -- The High Fin Sperm Whale 04:57, 6 June 2010 (UTC)
•  Neutral Mlpearc pull my chain 'Tribs 15:03, 6 June 2010 (UTC)
•  Support!!!--Mbz1 (talk) 22:27, 6 June 2010 (UTC)
•  Support relevant, better quality than the last one --ianaré (talk) 01:44, 7 June 2010 (UTC)
•  Comment -- This is obviously a false colour depiction of the surface but no sufficient explanation is given, either in the image file or in the nomination. Still the value of this kind of images depends very much on it. -- Alvesgaspar (talk) 13:44, 7 June 2010 (UTC)

• why is it 'obviously' false color ? --ianaré (talk) 17:07, 7 June 2010 (UTC)

• Because the sea is not black and the oil is not white in daylight. Thus, this must be some kind of infrared (IR) image with light warm areas (the oil) and dark colder areas (the sea). This is because the quantity of IR radiation emitted by any body is proportional to the fourth power of its absolute temperature (Stefan-Boltzmann law). This property allows IR satellite imagery to be used for mapping the temperature of the surface. Concerning the present case it is a well known fact that spilled oil is usually warmer than the water because it heats faster with the sun's radiation. -- Alvesgaspar (talk) 17:20, 7 June 2010 (UTC)

• I've added the full description from NASA. They explain how the smooth surface of the slick can lead to brighter reflections than rough sea water (at least in the sunglint area, explained further here), but they don't say whether this image is intended to approximate natural colours. It doesn't look far off to me (comparing against this "photo-like" image), although it appears very different to this image from a few days before, which is not affected by sunglint. Here is a false colour image highlighting the slick. --Avenue (talk) 03:53, 8 June 2010 (UTC)

• Thank you, the explanation makes sense and I was wrong. Anyway, I think that we should be more carefull in chosing and preparing images to be nominated to FPC. I'm also a bit annoyed by this continuous spamming of NASA pictures. -- Alvesgaspar (talk) 07:40, 8 June 2010 (UTC)

•  Support. Topical, a bit different from the usual NASA image, and I think better than alternatives such as File:Gulf of Mexico oil spill May 17 full.jpg. --Avenue (talk) 12:56, 8 June 2010 (UTC)
•  Support. Jonathunder (talk) 15:10, 8 June 2010 (UTC)

Confirmed results:

Result: 5 support, 0 oppose, 1 neutral → featured. /George Chernilevsky ^talk 06:10, 15 June 2010 (UTC)

This image will be added to the FP gallery: Places/Satellite_images