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
CN101852723BInactive Publication Date: 2012-01-25SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
Publication Date
2012-01-25
Estimated Expiration
Not applicable Β· inactive patent

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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.
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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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