@article {ISI:000365379500011,
	title = {{Estimations of heat transfer from Grotto{\textquoteright}s North Tower: A NEPTUNE Observatory case study}},
	journal = {DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY},
	volume = {121},
	number = {SI},
	year = {2015},
	month = {nov},
	pages = {95{\textendash}111},
	type = {Article},
	abstract = {The overall heat transfer through an active hydrothermal sulfide edifice, in particular the North Tower of Grotto, has been estimated at 80 MW or greater based on the following in situ measurements and assumptions: (1) The heat transfer by diffuse flow is estimated at 33-380 MW based on extrapolating the acoustically mapped area to all sides of the North Tower ({\{}{\textquoteright}{\textquoteright}{\}}visible{\{}{\textquoteright}{\textquoteright}{\}} area=30 m(2); extrapolated area= 100 m(2)) and using the range of available spot measurements of temperature (6-23 degrees C) and vertical velocity (0.07-0.28 m/s). The lower number (33 MW) is more likely, but there is insufficient knowledge of the temporal and spatial variability of diffuse flow to be certain. (2) The heat transfer by focused flow is estimated at 30-70 MW based on summing the estimated individual rates of heat transfer for 4 out of 7 documented black smokers and flanges. (3) Conductive heat transfer out of the mound is unknown, but is likely to be much less than the advective heat transfer. Additionally, the plume transport of heat is estimated at 20-40 MW based on the direct measurement of temperature within the plume (at 5-25 m above the top of the edifice). Despite uncertainties, the lower estimate of plume versus smoker heat transfer suggests that heat transfer is dominantly by diffuse flow. Furthermore, not all plumes from individual smokers may merge even for so small an area as the North Tower of Grotto. (C) 2015 Elsevier Ltd. All rights reserved.},
	keywords = {ROV Jason (Remotely Operated Vehicle)},
	issn = {0967-0645},
	doi = {10.1016/j.dsr2.2015.05.010},
	author = {Rona, Peter A and Bemis, Karen G and Xu, Guangyu and Mitsuzawa, Kyohiko}
}
@article {ISI:000308889800003,
	title = {{Deep sea hydrothermal plumes and their interaction with oscillatory flows}},
	journal = {GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS},
	volume = {13},
	year = {2012},
	month = {sep},
	type = {Article},
	abstract = {The acoustic scintillation method is applied to the investigation and monitoring of a vigorous hydrothermal plume from Dante within the Main Endeavour vent field (MEF) in the Endeavour Ridge segment. A 40 day time series of the plume{\textquoteright}s vertical velocity and temperature fluctuations provides a unique opportunity to study deep sea plume dynamics in a tidally varying horizontal cross flow. An integral plume model that takes into account ambient stratification and horizontal cross flows is established from the conservation equations of mass, momentum and density deficit. Using a linear additive entrainment velocity in the model ( E = alpha U-m + beta U-perpendicular to) that is a function of both the plume relative axial velocity (U-m) and the relative ambient flow perpendicular to the plume (U-perpendicular to) gives consistent results to the experimental data, suggesting entrainment coefficients alpha = 0.1 and beta = 0.6. Also from the integral model, the plume height in a horizontal cross flow ( U-a) is shown to scale as 1.8B(1/3)U(a)(-1/3)N(-2/3) for 0.01 {\textless}= U-a {\textless}= 0.1 m/s where B is the initial buoyancy transport and N is the ambient stratification, both of which are assumed constant.},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {1525-2027},
	doi = {10.1029/2012GC004188},
	author = {Xu, Guangyu and Di Iorio, Daniela}
}
@article {ISI:000295799400034,
	title = {{The relative effects of particles and turbulence on acoustic scattering from deep-sea hydrothermal vent plumes}},
	journal = {JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA},
	volume = {130},
	number = {4, 1},
	year = {2011},
	month = {oct},
	pages = {1856{\textendash}1867},
	type = {Article},
	abstract = {Acoustic methods are applied to the investigation and monitoring of a vigorous hydrothermal plume within the Main Endeavor vent field at the Endeavor segment of the Juan de Fuca Ridge. Forward propagation and scattering from suspended particulates using Rayleigh scattering theory is shown to be negligible (log-amplitude variance sigma(2)(chi) similar to 10(-7)) compared to turbulence induced by temperature fluctuations (sigma(2)(chi) similar to 0.1). The backscattering from turbulence is then quantified using the forward scattering derived turbulence level, which gives a volume backscattering strength of s(V) = 6.5 x 10(-8) m(-1). The volume backscattering cross section from particulates can range from s(V) = 3.3 x 10(-6) to 7.2 x 10(-10) m(-1) depending on the particle size. These results show that forward scatter acoustic methods in hydrothermal vent applications can be used to quantify turbulence and its effect on backscatter measurements, which can be a dominant factor depending on the particle size and its location within the plume. (C) 2011 Acoustical Society of America. {\{}[{\}}DOI: 10.1121/1.3624816]},
	keywords = {ROV Jason (Remotely Operated Vehicle)},
	issn = {0001-4966},
	doi = {10.1121/1.3624816},
	author = {Xu, Guangyu and Di Iorio, Daniela}
}
