Temperature and turbidity anomalies and flux estimation of hydrothermal plume in Explorer Ridge in the Northeast Pacific Ocean

Guo Shuangxi; Lu Yuanzheng; Cen Xianrong; Qu Ling; Sharon L. Walker; Zhou Shengqi

doi:10.3969/j.issn.0253-4193.2017.12.001

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Guo Shuangxi, Lu Yuanzheng, Cen Xianrong, Qu Ling, Sharon L. Walker, Zhou Shengqi. Temperature and turbidity anomalies and flux estimation of hydrothermal plume in Explorer Ridge in the Northeast Pacific Ocean[J]. Haiyang Xuebao, 2017, 39(12): 1-11. doi: 10.3969/j.issn.0253-4193.2017.12.001

Citation:

Guo Shuangxi, Lu Yuanzheng, Cen Xianrong, Qu Ling, Sharon L. Walker, Zhou Shengqi. Temperature and turbidity anomalies and flux estimation of hydrothermal plume in Explorer Ridge in the Northeast Pacific Ocean[J]. Haiyang Xuebao, 2017, 39(12): 1-11. doi: 10.3969/j.issn.0253-4193.2017.12.001

Citation:

Guo Shuangxi, Lu Yuanzheng, Cen Xianrong, Qu Ling, Sharon L. Walker, Zhou Shengqi. Temperature and turbidity anomalies and flux estimation of hydrothermal plume in Explorer Ridge in the Northeast Pacific Ocean[J]. Haiyang Xuebao, 2017, 39(12): 1-11. doi: 10.3969/j.issn.0253-4193.2017.12.001

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Temperature and turbidity anomalies and flux estimation of hydrothermal plume in Explorer Ridge in the Northeast Pacific Ocean

doi: 10.3969/j.issn.0253-4193.2017.12.001

1.
State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
2.
Pacific Marine Environmental Laboratory, NOAA, Seattle, WA 98115, USA

Received Date: 2017-03-03
Rev Recd Date: 2017-05-15

Abstract

Abstract

There are significant physical and chemical differences between deep-sea hydrothermal fluids and ambient seawater. Detecting the temperature and turbidity anomaly is one of the main methods to explore the hydrothermal fields. Based on the towed CTD dataset of the project of Submarine Ring of Fire 2002, the hydrological characteristics and flux discharge of hydrothermal vents in Explorer Ridge were analyzed. The neutral buoyancy layer in Explorer Ridge hydrothermal filed is 1 600 to 1 900 m, about 200 m above the seafloor. The maximums of temperature, salinity and turbidity anomaly are 0.04℃, 0.004 and 0.18 NTU, respectively. The shape of the neutral buoyancy layer is approximately elliptical, the major axis overlaps with the ocean ridge, and the total area is about 27 km². It is found that the neutral buoyancy layer is distinctly layered. It is estimated with empirical formulas that the total buoyancy flux, volume flux and heat flux of the measured hydrothermal vents are 6.19×10^-2 m⁴/s³, 9.884×10^-2 m³/s and 194.9 MW, respectively, and their average values are 2.063×10^-2 m⁴/s³, 3.295×10^-2 m³/s and 64.967 MW, respectively.
- the Northeast Pacific Ocean,
- Explorer Ridge,
- potential temperature anomaly,
- potential turbidity anomaly,
- heat flux

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References(29)

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