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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Main Authors: Andreas M. Thurnherr, Louis C. St. Laurent
Format: Article
Language:English
Published: The Oceanography Society 2012-03-01
Series:Oceanography
Subjects:
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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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
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