Optical measurement method and device for ocean colour voyage

An optical measurement device and optical measurement technology, applied in the field of optical detection, can solve problems such as incompleteness, data volume that cannot meet the requirements of water color calibration, and observation data out of synchronization, so as to improve real-time performance and avoid the time to acquire data.

Inactive Publication Date: 2018-11-30
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, in view of the characteristics of changing water environment and complex aerosol types in sea areas, the calibration of water color remote sensing products covering multiple sea areas and seasons faces many problems
On the one hand, the amount of data obtained only by means of traditional voyage surveys or fixed-point anchored buoys is far from meeting the requirements for water color calibration; , not comprehensive and affect the correction accuracy of water color remote sensing atmosphere

Method used

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  • Optical measurement method and device for ocean colour voyage
  • Optical measurement method and device for ocean colour voyage
  • Optical measurement method and device for ocean colour voyage

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Effect test

Embodiment 1

[0049] see figure 1, figure 1 It is a schematic flow chart of the optical measurement method for ocean water color navigation provided in this embodiment. Such as figure 1 As shown, the optical measurement method includes the following steps:

[0050] S101. Acquire a first radiance, a second radiance, an incident irradiance, and an atmospheric optical parameter.

[0051] In this embodiment, the first radiance, the second radiance, the incident irradiance and the atmospheric optical parameters are obtained, specifically, the first radiance, the second radiance, the incident irradiance and the atmospheric optical parameters can be obtained for the optical measurement equipment or the first radiance, the second radiance, the incident irradiance and the atmospheric optical parameters can be obtained for the optical detection device, wherein, when the optical detection device is used, the optical detection device can be a part of the optical measurement device.

[0052] In this...

Embodiment 2

[0088] see figure 2 , figure 2 It is a schematic flow chart of the optical measurement method for marine water color navigation provided by Embodiment 2 of the present invention. Such as figure 2 As shown, the optical measurement method may include the following steps:

[0089] S201. Adjust the inclination angle between the incident irradiance and the horizontal plane to be 90 degrees by using the gravity adjustment device.

[0090]In this embodiment, the gravity adjustment device is a mechanical gravity device such as a gravity hammer, through which the optical measurement device automatically adjusts the vertical direction, so that the optical measurement device can accurately maintain a vertical relationship with the ground anytime and anywhere.

[0091] In this embodiment, the third optical probe is fixed on the optical measuring device, and when the optical measuring device is perpendicular to the horizontal plane, it can ensure that the third optical probe is perpe...

Embodiment 3

[0157] see image 3 , image 3 It is a structural schematic diagram of an optical measurement device for marine water color navigation provided by Embodiment 3 of the present invention. Such as image 3 As shown, the optical measurement equipment includes:

[0158] The obtaining unit 301 is configured to obtain the first radiance, the second radiance, the incident irradiance and atmospheric optical parameters.

[0159] In this embodiment, the first radiance, the second radiance, the incident irradiance and the atmospheric optical parameters are obtained, specifically, the first radiance, the second radiance, the incident irradiance and the atmospheric optical parameters can be obtained for the optical measurement equipment or the first radiance, the second radiance, the incident irradiance and the atmospheric optical parameters can be obtained for the optical detection device, wherein when the optical detection device is used, the optical detection device can be a part of t...

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Abstract

The invention provides an optical measurement method and device for ocean colour voyage, a computer device and a computer-readable storage medium. The optical measurement method comprises the steps of: obtaining the first radiance, the second radiance, the incident irradiance and atmospheric optical parameters; on the basis of the first radiance, the second radiance and the incident irradiance, calculating the remote sensing reflectance; and, on the basis of the remote sensing reflectance and the atmospheric optical parameters, calculating remote sensing field information. By means of the optical measurement method provided by the invention, influence of atmospheric aerosol can be eliminated; furthermore, the water environment monitoring efficiency is increased; the real-time performance and the accuracy are improved; and thus, the water environment monitoring effect and effect can be improved.

Description

technical field [0001] The invention relates to the technical field of optical detection, in particular to an optical measurement method and equipment for marine water color navigation. Background technique [0002] At present, the hyperspectral observation system is an important part of the international ocean observation program in recent years, and the observation system plays an increasingly important role in the verification of new water color remote sensing products. However, considering the characteristics of changing water environment and complex aerosol types in sea areas, the calibration of water color remote sensing products covering multiple sea areas and seasons faces many problems. On the one hand, the amount of data obtained only by means of traditional voyage surveys or fixed-point anchored buoys is far from meeting the requirements for water color calibration; , It is not comprehensive and affects the correction accuracy of the water color remote sensing at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 唐世林许占堂李骏旻
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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