File:Salt ponds, South Bay, SF.jpg

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Description

High power electrical supply towers and lines cross salt ponds of the South Bay. 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
Source 2009_11_26_bos-sfo_272
Author Doc Searls from Santa Barbara, USA
Object location37° 28′ 50.22″ N, 122° 01′ 28.46″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMap - Google Earthinfo

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Checked copyright icon.svg This image, originally posted to Flickr, was reviewed on January 22, 2010 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date.

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current21:00, 22 January 2010Thumbnail for version as of 21:00, 22 January 20102,376 × 2,736 (4.52 MB)File Upload Bot (Magnus Manske) (talk | contribs){{Information |Description=High power electrical supply towers and lines crosss salt ponds of the South Bay. Salt evaporation ponds formed by salt water impounded within levees in former tidelands on the shores of San Francisco Bay. There are many of thes
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