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Source page: |
http://commons.wikimedia.org/wiki/File:Dust_and_Hydrogen_Sulfide_along_the_Namibian_Coast.jpg |
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Summaryedit
| Description |
English: Hydrogen sulphide bubbled upward and dust plumes blew south-westward along the coast of Namibia in mid-June 2010. Slivers of peacock green near the shore betray the presence of hydrogen sulfide emissions. A study published in 2009 found that the frequent hydrogen sulfide emissions in this area result from ocean-current delivery of oxygen-poor water from the north, oxygen-depleting demands of biological and chemical processes in the local water column, and carbon-rich organic sediments under the water column. When the hydrogen sulfide gas reaches oxygen-rich surface waters, pure sulphur precipitates into the water. The yellow colour of sulphur turns the dark blue water green. Near the hydrogen sulphide eruptions, multiple, linear dust plumes extend over the Atlantic. Most of the plumes appear to originate from stream channel sediments, and they retain the pale beige colour characteristic of such sediments.
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| Date | |
| Source | NASA Earth Obervatory |
| Author | Jeff Schmaltz |
Image captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite.
Licensingedit
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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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Warnings:
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| Annotations | This image is annotated: View the annotations at Commons |
Photo's description:
Hydrogen sulphide bubbled upward and dust plumes blew south-westward along the coast of Namibia in mid-June 2010. Slivers of peacock green near the shore betray the presence of hydrogen sulfide emissions. A study published in 2009 found that the frequent hydrogen sulfide emissions in this area result from ocean-current delivery of oxygen-poor water from the north, oxygen-depleting demands of biological and chemical processes in the local water column, and carbon-rich organic sediments under the water column. When the hydrogen sulfide gas reaches oxygen-rich surface waters, pure sulphur precipitates into the water. The yellow colour of sulphur turns the dark blue water green. Near the hydrogen sulphide eruptions, multiple, linear dust plumes extend over the Atlantic. Most of the plumes appear to originate from stream channel sediments, and they retain the pale beige colour characteristic of such sediments.
| EXIF data: | |
| File name | dust_and_hydrogen_sulfide_along_the_namibian_coast.jpg |
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| Size, Mbytes | 0.7292998046875 |
| Mime type | image/jpeg |
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