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Remote Sensing Indirect Monitoring Method of Euphotic Algae Amount in Eutrophic Lakes

A technology of eutrophication and euphotic layer, applied in the field of remote sensing, can solve problems such as the inability to detect water body information

Active Publication Date: 2020-04-21
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] However, the total amount of algae information in the entire water column is composed of two parts in the euphotic zone and outside the euphotic zone. Since remote sensing can hardly detect the water body information outside the euphotic zone, only the algae in the euphotic zone that can be monitored by remote sensing can only be considered. information or the apparent parameters of the water body to indirectly estimate the total algae information outside the euphotic zone

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  • Remote Sensing Indirect Monitoring Method of Euphotic Algae Amount in Eutrophic Lakes
  • Remote Sensing Indirect Monitoring Method of Euphotic Algae Amount in Eutrophic Lakes
  • Remote Sensing Indirect Monitoring Method of Euphotic Algae Amount in Eutrophic Lakes

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[0033] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

[0034] Aspects of the invention are described in this disclosure with reference to the accompanying drawings, which show a number of illustrated embodiments. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be understood that the various concepts and embodiments described above, as well as those concepts and embodiments described in more detail below, can be implemented in any of a number of ways, which should be the concepts and embodiments disclosed by the present invention and not Not limited to any implementation. In addition, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

[0035] In this embodiment, Chaohu Lake is taken as an example, an...

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Abstract

The invention provides a remote sensing indirect monitoring method for the total amount of algae outside the euphotic zone of eutrophic lakes. The quantitative relationship between the average concentration and the average concentration of chlorophyll a in the euphotic layer or the depth of the euphotic layer, and then on the basis of the remote sensing inversion of the known average concentration of chlorophyll a in the euphotic layer or the depth of the euphotic layer, indirectly realize the total algae outside the euphotic layer. Quantitative remote sensing monitoring. Based on this method, it can finally and accurately obtain the interannual and intermonth variation law and spatial distribution of the total algae in the eutrophic lake water column and even the entire lake.

Description

technical field [0001] The invention relates to the technical field of remote sensing, in particular to a remote sensing indirect monitoring method for the total amount of algae in the euphotic zone of eutrophic lakes. Background technique [0002] Remote sensing technology provides the possibility of rapid and large-scale monitoring of cyanobacteria. When cyanobacteria blooms broke out, the chlorophyll content in the water body increased significantly, resulting in changes in the spectral characteristics of the water body. Usually, the spectral characteristics of areas covered by cyanobacteria are significantly different from those of algae-free lakes. Remote sensing of water color in lakes can use diversity in sensor detection and inversion of water color parameters such as chlorophyll in inland water bodies. Therefore, satellite remote sensing data can be used to monitor cyanobacterial blooms. Currently MODIS, CBERS-1, TM, ETM, IRS-P6, LISS-3 and other remote sensing da...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/84G06K9/00
CPCG01N21/84G06V20/188
Inventor 张玉超胡旻琪马荣华
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
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