Hydrothermal plumes trapped by thermal stratification
نویسندگان
چکیده
منابع مشابه
Methane in aging hydrothermal plumes
Methane concentration and the stable carbon isotopic composition ( C–CH4) were measured in aging hydrothermal plume waters originating at the Endeavour Segment, Juan de Fuca Ridge. CH4 concentrations decreased systematically from 600 nM at on-axis stations to 11 nM at a distal station 15 km off axis; background CH4 concentrations are 2 nM. CH4 behaves nonconservatively in plume waters and does ...
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Introduction: The formation mechanism for regions of chaotic terrain on Europa is the subject of much debate. Several models have been proposed to account for these disrupted areas of Europa's surface including melting through the ice shell by a concentrated heat source in the underlying ocean [1,2], coalescence of solid-state diapirs [3], extrusion of warm ice onto the surface [4], and melting...
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We present a scheme to extract the velocity of buoyant structures in turbulent thermal convection from simultaneous local velocity and temperature measurements. Applying this scheme to measurements taken at positions within the convection cell where the buoyant structures are dominated by plumes, we obtain the temperature dependence of the plume velocity and understand our results using the equ...
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Laboratory experiments investigate the radial spread of an intrusion created by a turbulent forced plume in uniformly stratified ambient fluid. The flow evolution is determined as it depends upon the ambient buoyancy frequency, N, and the source momentum and buoyancy fluxes, M0 and F0, respectively. The plume reaches its maximum vertical extent, Zm, collapses back upon itself as a fountain and ...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2003
ISSN: 0094-8276
DOI: 10.1029/2003gl018131