File:Northern Gulf of Mexico (6714667901).jpg
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| Description |
NASA image acquired January 3, 2012 One of the most documented dead zones on Earth is in the northern Gulf of Mexico in the summer when solar heating increases the buoyancy of surface waters thereby reducing mixing between the surface and the bottom. Phytoplankton -- powered by the same sunlight and fed by a rich nutrient broth flowing out of local rivers -- bloom, die, sink, and get remineralized by bacteria which use up all the available oxygen in the isolated bottom waters which then become dead zones. The above view looking eastwards from Louisiana on the left towards northern Florida in the distance on the right was collected in winter when oxygenated water is more easily mixed down to the sea floor. The tell-tale tan and greenish-brown plumes from the Mississippi and Atchafalaya rivers show that even though dead zones may not form in winter, transport of the suspended sediments that are usually accompanied by nutrients continues all year long. Credit: NASA/GSFC/Aqua MODIS NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Like us on Facebook Find us on Instagram |
| Date | |
| Source | Northern Gulf of Mexico |
| Author | NASA Goddard Space Flight Center from Greenbelt, MD, USA |
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This image was originally posted to Flickr by NASA Goddard Photo and Video at https://flickr.com/photos/24662369@N07/6714667901. It was reviewed on 17 September 2016 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 21:53, 17 September 2016 | | 2,500 × 2,750 (1.42 MB) | Vanished Account Byeznhpyxeuztibuo (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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