Method for measuring vertical flux of nutritive salt on site
An in-situ measurement and nutrient salt technology, which can be used in measurement devices, surveying and navigation, open-air water source surveys, etc., can solve the problems of time-consuming, high cost, low resolution, etc. cost reduction effect
Inactive Publication Date: 2018-05-08
TIANJIN UNIV OF SCI & TECH
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Although sample sampling can roughly reflect the general vertical distribution of nutrients in the ocean, the resolution is low, and the later experimental sample processing is cumbersome, which takes time and costs a lot
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[0016] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0017] like Figures 1 to 2 As shown, a method for in situ measurement of nutrient vertical flux, combined with advanced instruments and scientific measurement methods, can effectively, scientifically and accurately obtain high temporal and spatial resolution data of turbulent flow and nutrient salt in the vertical section of the water body . Using vertical microstructure profiler (VMP, Vertical Microstructure Profiler, Rockland Scientific International Inc.,), temperature and salt water depth meter CTD (SBE3, Sea Bird Electronics Inc.,), vertical high-precision nutrient measurement instrument SUNA V3 (Submersible Ultraviolet NitrateAnalyzer ,Sea Bird Electronics Inc.,) to obtain the corresponding turbulent shear data, hydrological data and high-spatial-resolution nutrient data respectively, and the nutrient profile measurement instrument SUNA ...
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The invention discloses a method for measuring the vertical flux of nutritive salt on site. The steps are as follows: step S1: setting the parameters of an observation instrument; step S2, distributing the observation instrument; step S3, recovering the observation instrument, and reading the original data; step S4, preprocessing the original data obtained in the step S3; and step S5, calculatingthe vertical flux F of the nutritive salt according to the data in the step S4, wherein the computational formula is shown in the description. The method has the beneficial effects that the concentration data of the nutritive salt can be directly acquired only by simply distributing the instrument, then the flux of the nutritive salt is calculated, and the complex processing process of an experiment sample in the later period is avoided; the method is strong in operability, can be operated in different sea areas and water areas, has the characteristic of saving time and labor, and greatly reduces the cost.
Description
technical field [0001] The invention relates to the field of ocean turbulence and seawater nutrient flux measurement, in particular to a method for in-situ measurement of nutrient vertical flux. Background technique [0002] In recent years, the problem of ocean eutrophication has become more and more severe. The composition, source and process of nutrients in the ocean have gradually become one of the important issues in marine environmental science research. How to accurately understand the mixing of the ocean to bring the bottom nutrients into the euphotic layer , the physical process of supplying the needs of biological activities has become an important research topic. Although sample sampling can roughly reflect the general vertical distribution of nutrients in the ocean, the resolution is low, and the processing of experimental samples in the later stage is cumbersome, time-consuming and costly. How to scientifically and accurately obtain ocean turbulence and high-sp...
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IPC IPC(8): G01C13/00G01M10/00
CPCG01C13/00G01M10/00
Inventor 赵亮李伯志赵紫涵
Owner TIANJIN UNIV OF SCI & TECH