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A method for predicting the disappearance days of floating Enteromorpha on the sea surface

A forecasting method, the technology of Enteromorpha, applied in forecasting, data processing applications, instruments, etc., can solve the problems of less systematic scientific analysis and large workload

Active Publication Date: 2022-04-01
OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are few systematic scientific analyzes of the green tide extinction process
Such a large workload and capital investment have brought great challenges to relevant departments in formulating prevention and control strategies and resource allocation plans

Method used

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  • A method for predicting the disappearance days of floating Enteromorpha on the sea surface
  • A method for predicting the disappearance days of floating Enteromorpha on the sea surface
  • A method for predicting the disappearance days of floating Enteromorpha on the sea surface

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0036] The detection results of remote sensing images show that the eradication period of Enteromorpha in the South Yellow Sea from 2007 to 2019 (that is, the maximum daily coverage area of ​​Enteromorpha, the area of ​​Enteromorpha detected by remote sensing images is less than 16km 2 The number of days of extinction is about 47 days, and only 2008 and 2019 exceed 60 days.

[0037] According to the number of days of extinction of Enteromorpha in the South Yellow Sea and the change in daily extinction rate, the present invention establishes a method for estimating the number of days of extinction of Enteromorpha floating on the surface of the green tide in the South Yellow Sea. The specific examples are as follows:

[0038] Step 1: Divide the extinct period of Enteromorpha int...

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Abstract

The invention discloses a method for predicting the disappearance days of floating Enteromorpha on the sea surface, which comprises the following steps: step 1, dividing the eradication period of Enteromorpha into m periods P 1～m , P 1 represents 1~t days after the maximum area of ​​Enteromorpha, P 2 It represents (t+1)~2t days after the maximum area of ​​Enteromorpha, P 3 represents (2t+1) ~ 3t days after the maximum area of ​​Enteromorpha, ..., P m It represents ((m‑1)t+1)~mt days after the maximum area of ​​Enteromorpha. The values ​​of m and t are determined according to the number of days when Enteromorpha floats on the sea surface in the sea area over the years; statistics on the extinction rate of Enteromorpha in m periods over the years The multi-year average step 2 is to input the maximum daily coverage area of ​​Enteromorpha in the year to be predicted into the estimation model to predict the days of Enteromorpha extinction. The prediction method disclosed in the present invention can realize the accurate prediction of the days of Enteromorpha extinction, and provide technical support for relevant government departments to formulate corresponding green tide prevention and control strategies and rationally allocate prevention and control resources.

Description

technical field [0001] The invention relates to the technical field of marine monitoring, in particular to a method for predicting the disappearance days of floating Enteromorpha on the sea surface. Background technique [0002] In recent years, marine macroalgae have flooded, and the scope of influence has gradually increased. For example, the common green tide is an ecological phenomenon formed by the explosive growth and accumulation of opportunistic macroalgae in seawater such as Enteromorpha under certain environmental conditions. Disasters (Valiela et al., 1997; Fletcher, 1996). Since 2007, large-scale green tides have occurred periodically in the South Yellow Sea of ​​my country year after year. The green tide in the South Yellow Sea is considered to be the largest green tide disaster in the world due to its long duration, wide impact on the sea area, and difficulty in cleaning up (Zhou et al., 2015; Liu et al., 2009). The outbreak of green tide has a serious impact...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q50/26
CPCG06Q10/04G06Q50/26
Inventor 安德玉邢前国禹定峰
Owner OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI