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Sea-air carbon dioxide flux measuring device and measuring method thereof

A carbon dioxide, measuring device technology, applied in sampling device, color/spectral characteristic measurement, fluid pressure measurement using optical method, etc., to achieve the effects of good stability, simple structure and low power consumption

Inactive Publication Date: 2012-01-25
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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Problems solved by technology

[0018] The present invention provides a sea-air carbon dioxide flux measurement device to solve the problem of not using a CO2 partial pressure measurement sensor based on an acid-base indicator and optical fiber technology in the prior art to simultaneously measure atmospheric and seawater CO2 partial pressures, and then estimate sea-air CO2 Flux Technical Issues

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  • Sea-air carbon dioxide flux measuring device and measuring method thereof
  • Sea-air carbon dioxide flux measuring device and measuring method thereof
  • Sea-air carbon dioxide flux measuring device and measuring method thereof

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[0070] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0071] As shown in the figure, a sea-air CO2 flux measurement device includes a control and data acquisition module, shown in the purple dotted line box in the accompanying drawing; a CO2 partial pressure measurement sensor, shown in the red ring dotted line box in the accompanying drawing The sample injection module is shown in the blue dotted line box in the attached figure.

[0072] The control and data acquisition module is mainly used for spectrometer data acquisition, auxiliary parameter acquisition, communication between measuring instrument and upper computer, and system power supply control.

[0073] CO2 partial pressure measurement sensor, including surface seawater CO2 partial pressure measurement channel (1), sea surface atmospheric CO2 partial pressure measurement channel (2), light source (3), spectrometer 1 (4), spectrometer 2 ...

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Abstract

The invention relates to a sea-air carbon dioxide flux measuring device and a measuring method thereof, belonging to the field of sea-air measurement. The sea-air carbon dioxide flux measuring device comprises a control and data acquisition module, a carbon dioxide partial pressure measuring sensor and a sampling module. Under the control of the control and data acquisition module, the sampling module respectively extracts a water sample and an air sample to the carbon dioxide partial pressure measuring sensor for measurement to obtain sea-air carbon dioxide flux. The invention realizes the device which is provided with the CO2 partial pressure measuring sensor based on acid-base indicators and an optical fiber technology and can synchronously measure the CO2 partial pressure in surface seawater and sea surface atmosphere to further estimate the sea-air CO2 flux. Compared with the prior art, the invention has the advantages that the structure is simple, the stability is high, the power consumption is low and the device is suitable for long-time serial automatic observation on anchored platforms.

Description

technical field [0001] The invention relates to the field of air-sea measurement, in particular to an air-sea carbon dioxide flux measurement device and a measurement method thereof. Background technique [0002] Quantitative research on energy and material exchange between land or ocean and the atmosphere is an important part of the biogeochemical cycle, the gas exchange flux between the sea and air, especially CO 2 The monitoring and estimation of exchange flux is of great significance to our deep understanding of carbon biogeochemical cycle and global climate change. [0003] Under current technical conditions, air-sea CO 2 Flux is difficult to measure directly with instruments. Currently, the internationally recognized and widely used method for calculating air-sea CO 2 The flux method is the air-sea interface CO 2 differential pressure method. The method uses CO in the surface seawater and the sea surface atmosphere 2 The difference in partial pressure, combined w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/25G01N1/14G01N1/24G01L11/02G02B6/00
Inventor 王桂芬叶海彬孙兆华曹文熙杨跃忠
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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