Automatic measuring device and method for sea-air flux
A technology of air flux and separation device, which is used in measurement devices, meteorology, surveying and mapping, and navigation, etc., can solve the problems of affecting measurement accuracy, easy loss, and low test efficiency, and achieve the effect of improving measurement efficiency and high precision.
Active Publication Date: 2019-02-22
GUANGZHOU MARINE GEOLOGICAL SURVEY
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Problems solved by technology
[0004] At present, the measurement of dissolved methane and carbon dioxide in seawater is determined by purge and trap device-gas chromatography. It is necessary to bring the collected samples containing methane and carbon dioxide back to the laboratory for analysis and measurement. The test efficiency is low, and the samples are in the process of transportation. Easy to lose, affect the measurement accuracy
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[0031] Below, in conjunction with accompanying drawing and specific embodiment, the present invention is described further:
[0032] Such as figure 1 As shown, an automatic measurement device for air-sea flux includes a power supply module, a meteorological instrument 2, a trench 5 and a support rod 9, and a seawater sampling and dissolved gas separation device 3 and a temperature measuring device arranged in a protection box 6 (not shown in the figure), salinity measuring device (not shown in the figure), peristaltic pump 4, storage module 7, GPS module 8 and controller, described power supply module comprises power supply 1 and power supply controller 10; The power supply 1 is electrically connected to the power supply controller 10, and the meteorological instrument 2, the seawater sampling and dissolved gas separation device 3, the temperature measuring device, the salinity measuring device, the peristaltic pump 4, the storage module 7, the GPS module 8 and the controller ...
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The invention relates to an automatic measuring device and method for sea-air flux. The measuring method comprises the following steps that: a seawater sampling and dissolved gas separation device collects a seawater sample and carries out measurement to obtain a dissolution content of the gas in the seawater sample, wherein the gas includes methane and / or carbon dioxide; a weather instrument measures a wind speed U10 at an altitude of 10m above the sea water surface; a temperature measuring device and a salinity measuring device measure a water temperature T and salinity of the seawater respectively; a storage module calculates a Schmidt number Sc of the corresponding gas; the storage module calculates an exchange rate k of the corresponding gas at the air-sea interface; and a controllercalculates a sea-air flux F of the corresponding gas. According to the invention, with the surface seawater sampling and dissolved gas pre-separation device, indoor analysis and testing are not needed, so that the measurement efficiency is improved; and the sea-air flux precision of measured methane and carbon dioxide is high.
Description
technical field [0001] The invention relates to the technical field of air-sea flux measurement, in particular to an automatic measurement device and method for air-sea flux. Background technique [0002] In the mutually restrictive atmosphere-ocean system, the air-sea flux is an important way to realize the interaction between the ocean and the atmosphere. The air-sea flux describes the formation and change of climate, shows the energy exchange range between the ocean and the atmosphere, and is the key factor affecting global climate change. The important mechanism is the content of joint research in the fields of oceanography and meteorology. [0003] With the global climate change, the marine environment and observation are getting more and more attention and attention from the country. The 1-1.5km atmospheric boundary layer with the ocean as the underlying surface is also called the ocean-atmospheric boundary layer. The bridge for energy exchange, that is, the air-sea f...
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IPC IPC(8): G01W1/02G01C13/00
CPCG01C13/00G01W1/02
Inventor 梁前勇钟超董一飞张亭亭吴学敏郭斌斌肖曦杨林
Owner GUANGZHOU MARINE GEOLOGICAL SURVEY