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Data extraction method of ocean profile water body based on python program

A technology of profile data and ocean profile, applied in the field of ocean profile water data extraction based on Python program, can solve problems such as difficult processing, cumbersome processing, and inability to extract, and achieve the effect of visualization

Active Publication Date: 2022-08-05
OCEAN UNIV OF CHINA
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Problems solved by technology

[0003] However, the processing of data obtained from buoys is relatively cumbersome, and it is difficult to extract profiles from the obtained data. The existing methods generally delineate a range first, and find the maximum value in the range. The defects of this method are: It is impossible to extract the section that has not fully dived or fully surfaced

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  • Data extraction method of ocean profile water body based on python program
  • Data extraction method of ocean profile water body based on python program
  • Data extraction method of ocean profile water body based on python program

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Embodiment

[0033] A method for extracting ocean profile water body data based on Python program, such as figure 1 shown, including the following steps:

[0034] (1) The parameters of the maximum depth, diving speed and sampling frequency of the profile buoy are preset. The buoy adopts anchored observation and reciprocates up and down at the observation point. If the time is the x-axis and the depth is the y-axis, the movement trajectory of the buoy is as follows image 3 shown. The profiling buoy dives to the maximum depth and then rises to the sea surface, which is a complete profiling movement process. During this movement, the profiling buoy collects the temperature, depth, salinity and other element data of the seawater, and stores these data in the buoy. SD memory card; import the water parameter data of a certain depth in a certain sea area obtained by the profile buoy into the computer to form a txt file of ocean water profile data. Some of the raw data collected during a buoy ...

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Abstract

The invention belongs to the field of marine surveying and mapping and marine information visualization. In view of the above problem that the existing method is difficult to accurately extract the profile from the profile buoy data, the present invention provides a method for extracting ocean profile water data based on a Python program. According to the size of the adjacent depth data, the maximum depth and the minimum depth are initially extracted; after screening, the water body profile is extracted, and the water body elements such as temperature and salinity in the profile are visualized according to the index value in the extracted profile. .

Description

technical field [0001] The invention belongs to the field of ocean surveying and mapping and ocean information visualization, in particular to a method for extracting ocean profile water body data based on a Python program. Background technique [0002] In recent years, with the deepening of the understanding of the ocean, people's need for the observation of the fine structure of the ocean has become more and more obvious, and the development of ocean observation equipment has become an urgent need to observe the fine structure of the ocean. The traditional timed and fixed-point observation of the ocean requires a lot of manpower and material resources; the method of using ships tow CTD sensors for observation is expensive. Therefore, the use of buoys to observe ocean structures has gradually become the mainstream of ocean observations. Profile buoys can explore marine phenomena at different depths of the ocean, monitor seawater dynamic data, and observe the ocean in all-w...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/25G06F16/22G06F16/28
CPCG06F16/254G06F16/2282G06F16/287
Inventor 于方杰韩彤邓浩然孙丰治陈戈
Owner OCEAN UNIV OF CHINA
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