RS-based marine primary productivity distribution visualization method

Abstract

The invention belongs to the technical field of marine primary productivity measurement and particularly relates to an RS-based marine primary productivity distribution visualization method. A measuring device used in the method comprises a shell, wherein two push rod motors are arranged at a top end of the shell, a pressure plate is fixed at an output shaft end of the push rod motor, a first cylinder and a second cylinder are fixed to a bottom end of the shell, the first cylinder is made of a transparent material, the second cylinder is made of non-transparent materials, a bottom end of the first cylinder and a bottom end of the second cylinder are of a closed structure, a pressing disc is located in an inner cavity of the first cylinder and an inner cavity of the second cylinder, the pressing disc is in clearance fit with the first cylinder and the second cylinder, and air pressure sensors are arranged on an inner side wall of the first cylinder and an inner side wall of the second cylinder. The marine environment is monitored in real time through the measuring device, automation is achieved, measuring accuracy is guaranteed, labor cost is reduced, and the marine primary productivity can be measured conveniently and rapidly.

Description

technical field [0001] The invention belongs to the technical field of marine primary productivity measurement, in particular to a method for visualizing distribution of marine primary productivity based on RS. Background technique [0002] RS is the English abbreviation of remote sensing, which refers to the method of obtaining the state information of the target object by indirect means. Remote sensing generally has three elements, target, sensor, and measurement method. Simply put, seeing the colorful world with your eyes is a remote sensing process. Here, flowers, plants and trees are the targets, your eyes are the sensors, different colors such as red, green and blue will stimulate the retina differently, and the biophysical principles hidden behind this are the measurement methods. [0003] Ocean primary productivity refers to the ability of producers such as phytoplankton, benthic plants, and autotrophic bacteria to produce organic matter through photosynthesis, als...

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Problems solved by technology

[0004] There are also some technical solutions for measuring marine primary productivity in the prior art, such as a Chinese patent with application number 2015208493914, which discloses a simulated on-site cultivation device for measuring marine primary productivity using the black and white bottle method, including a cultivation unit, The temperature and water flow simulation control unit, the light simulation control unit, the temperature simulation control unit uses a circular transparent water bath cover to provide a fully enclosed culture environment for the culture bottle, and drives the constant temperature water flowing continuously from the outside of the culture bottle through the circulating water bath equipment; Moreover, the temperature control range of the water bath is between 0°C and 100°C, covering the temperature that almost all marine phytoplankton can survive; this patent can not only accurately simulate the water temperature of the water sample at the original depth of the ocean, but is also applicable to any ocean in the world waters, but only at the theoretical level, and there is a large gap between the actual primary productivity data of the ocean, especially for the primary productivity of the ocean discharged from urban sewage into the sea. Due to the variable elements in the sewage discharged into the ocean, the primary Productivity changes in real time

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