File:2009-10 31 BOS-SFO 398z - Flickr - Nfrastructure.jpg
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| Description | Salt evaporation ponds formed by salt water impounded within levees in former tidelands on the shores of San Francisco Bay. There are many of these ponds surrounding the South Bay. As the water evaporates, micro-organisms of several kinds come to predominate and change the color of the water. First come green algae, then darkening as orange brine shrimp predominate. Finally red predominates as dunaliella salina, a micro-algae containing high amounts of beta-carotene (itself with high commercial value), predominates. Other organisms can also change the hue of each pond. Colors include red, green, orange and yellow, brown and blue. Finally, when the water is evaporated, the white of salt alone remains. This is harvested with machines, and the process repeats. |
| Date | Taken on 31 October 2009, 18:58 |
| Source | 2009-10_31_BOS-SFO_398z |
| Author | Doc Searls |
| Flickr tags | salt ponds, san francisco bay, 2009_10_31, bos-sfo, aerial, aviation, flying, approach, water, red, brown, orange, salt, windowseat, windowshot, united, ual, united air lines |
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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by Nfrastructure at https://flickr.com/photos/46167543@N05/51393996519. It was reviewed on 27 August 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:50, 27 August 2021 | | 3,504 × 2,336 (2.09 MB) | Red panda bot (talk | contribs) | In Flickr Explore: 2021-08-25 |
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