Turbulence Observations in a Buoyant Hydrothermal Plume on the East Pacific Rise
Hot vent fluid enters the ocean at high-temperature hydrothermal vents, also known as black smokers. Because of the large temperature difference between the vent fluid and oceanic near-bottom waters, the hydrothermal effluent initially rises as a buoyant plume through the water column. During its ri...
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Format: | Article |
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The Oceanography Society
2012-03-01
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Series: | Oceanography |
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Online Access: | http://tos.org/oceanography/archive/25-1_thurnherr.pdf |
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author | Andreas M. Thurnherr Louis C. St. Laurent |
author_facet | Andreas M. Thurnherr Louis C. St. Laurent |
author_sort | Andreas M. Thurnherr |
collection | DOAJ |
description | Hot vent fluid enters the ocean at high-temperature hydrothermal vents, also known as black smokers. Because of the large temperature difference between the vent fluid and oceanic near-bottom waters, the hydrothermal effluent initially rises as a buoyant plume through the water column. During its rise, the plume engulfs and mixes with background ocean water. This process, called entrainment, gradually reduces the density of the rising plume until it reaches its level of neutral buoyancy, where the plume density equals that of the background water, and it begins to spread along a surface of constant density. (For a much more detailed discussion of buoyant hydrothermal plumes, see Di Iorio et al., 2012, in this issue.) |
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issn | 1042-8275 |
language | English |
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spelling | doaj.art-289b92bc548d4f0e86f63e296618fe492022-12-22T01:53:40ZengThe Oceanography SocietyOceanography1042-82752012-03-01251180181Turbulence Observations in a Buoyant Hydrothermal Plume on the East Pacific RiseAndreas M. ThurnherrLouis C. St. LaurentHot vent fluid enters the ocean at high-temperature hydrothermal vents, also known as black smokers. Because of the large temperature difference between the vent fluid and oceanic near-bottom waters, the hydrothermal effluent initially rises as a buoyant plume through the water column. During its rise, the plume engulfs and mixes with background ocean water. This process, called entrainment, gradually reduces the density of the rising plume until it reaches its level of neutral buoyancy, where the plume density equals that of the background water, and it begins to spread along a surface of constant density. (For a much more detailed discussion of buoyant hydrothermal plumes, see Di Iorio et al., 2012, in this issue.)http://tos.org/oceanography/archive/25-1_thurnherr.pdfRidge 2000mid-ocean ridgesspreading centersturbulencehydrothermal plume |
spellingShingle | Andreas M. Thurnherr Louis C. St. Laurent Turbulence Observations in a Buoyant Hydrothermal Plume on the East Pacific Rise Oceanography Ridge 2000 mid-ocean ridges spreading centers turbulence hydrothermal plume |
title | Turbulence Observations in a Buoyant Hydrothermal Plume on the East Pacific Rise |
title_full | Turbulence Observations in a Buoyant Hydrothermal Plume on the East Pacific Rise |
title_fullStr | Turbulence Observations in a Buoyant Hydrothermal Plume on the East Pacific Rise |
title_full_unstemmed | Turbulence Observations in a Buoyant Hydrothermal Plume on the East Pacific Rise |
title_short | Turbulence Observations in a Buoyant Hydrothermal Plume on the East Pacific Rise |
title_sort | turbulence observations in a buoyant hydrothermal plume on the east pacific rise |
topic | Ridge 2000 mid-ocean ridges spreading centers turbulence hydrothermal plume |
url | http://tos.org/oceanography/archive/25-1_thurnherr.pdf |
work_keys_str_mv | AT andreasmthurnherr turbulenceobservationsinabuoyanthydrothermalplumeontheeastpacificrise AT louiscstlaurent turbulenceobservationsinabuoyanthydrothermalplumeontheeastpacificrise |