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A method for in situ observation of methane macro-seepage intensity at the sediment-water interface in the cold spring area

A sediment and water interface technology, applied in the direction of measuring devices, water resources assessment, climate sustainability, etc., can solve the problems of lack of temporal variation of methane seepage intensity, unable to support the research on the driving mechanism of temporal variation of methane seepage intensity, etc.

Active Publication Date: 2022-07-05
GUANGDONG LAB OF SOUTHERN OCEAN SCI & ENG GUANGZHOU +1
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Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a method for in-situ observation of the methane macro-seepage intensity at the sediment-water interface in the cold spring area, which can solve the lack of methane seepage in the prior art by using a simple cold spring observation device. Accurate observation of leakage intensity temporal variation and methane macro-seepage flux cannot support the research on the driving mechanism of methane leakage intensity temporal variation

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  • A method for in situ observation of methane macro-seepage intensity at the sediment-water interface in the cold spring area
  • A method for in situ observation of methane macro-seepage intensity at the sediment-water interface in the cold spring area
  • A method for in situ observation of methane macro-seepage intensity at the sediment-water interface in the cold spring area

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[0032] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", an...

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Abstract

The invention discloses an in-situ observation method of methane macro-leakage intensity at a sediment-water interface in a cold spring area, comprising: obtaining comprehensive observation data of cold spring water bodies through a cold spring observation device; obtaining background vertical flow velocity through a background observation device, and correcting the eruption of cold spring fluid obtain the time series of the eruption velocity of the cold spring fluid; smooth the methane concentration obtained by the multi-range sensor in the cold spring observation device, and obtain the smoothed methane concentration time series within this time; Fluid eruption velocity time series and methane concentration time series to calculate methane seepage flux. In the present invention, a simple combination of commonly used ocean observation equipment is used to conduct simultaneous observation of seafloor methane concentration and marine dynamic environment elements in the cold spring area, so as to achieve the purpose of exploring the time evolution law of methane macro seepage flux at the sediment-water interface in the cold spring area .

Description

technical field [0001] The invention relates to the technical field of marine detection, in particular to a method for in-situ observation of methane macro-leakage intensity at a sediment-water interface in a cold spring area. Background technique [0002] Submarine cold springs are an important natural source of methane in the ocean and atmosphere, and their methane macro-seepage activities at the sediment-water interface have strong temporal variability. Therefore, understanding the temporal variation of methane seepage intensity at the sediment-water interface in the cold spring area and its driving mechanism is of great significance for the study of global carbon cycle and climate effects. At present, two commonly used methods for observing the methane leakage intensity at the sediment-water interface have been proposed in the world: (1) in situ observation of fluid leakage rate combined with indoor methane concentration analysis; (2) benthic fluid continuous sampling co...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/02
CPCG01D21/02Y02A90/30
Inventor 郭斌斌梁前勇蒋苏梦苏丹仪陈宗恒吴学敏肖曦董一飞陈春亮冯强强
Owner GUANGDONG LAB OF SOUTHERN OCEAN SCI & ENG GUANGZHOU
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