Small Angle Scattering Intensity Measurement by an Improved Ocean Scheimpflug Lidar System
Quantification of the horizontal patterns of phytoplankton and the distribution of suspended particles across the sea’s surface has been greatly improved by traditional passive oceanic color remote sensing technology. Lidar technology has already been proven to be effective positive remote sensing t...
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| Format: | Article |
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MDPI AG
2021-06-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/13/12/2390 |
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| author | Hongwei Zhang Yuanshuai Zhang Ziwang Li Bingyi Liu Bin Yin Songhua Wu |
| author_facet | Hongwei Zhang Yuanshuai Zhang Ziwang Li Bingyi Liu Bin Yin Songhua Wu |
| author_sort | Hongwei Zhang |
| collection | DOAJ |
| description | Quantification of the horizontal patterns of phytoplankton and the distribution of suspended particles across the sea’s surface has been greatly improved by traditional passive oceanic color remote sensing technology. Lidar technology has already been proven to be effective positive remote sensing technology to construct high-resolution bathymetry models. Lidar technology significantly improves our ability to model biogeochemical processes in the upper ocean and provides advanced concepts regarding the vertical distribution of suspended particles and oceanic optical properties. In this paper, we present a novel optical approach to measuring the scattering intensity and characteristics of suspended particles within small angles backwards and distinguish water medium with different attenuation coefficients by a laboratory demonstration of the ocean Scheimpflug lidar system. The approach allows the direct determination of the scattering intensity over a small angle at the backward direction (175.8~178.8°) with an angular resolution of 0.38. Corrections for the effects of refraction at the air-glass-water interface were demonstrated. The data production (initial width and width attenuation rate of the laser beam) of the ocean Scheimpflug lidar system were utilized to distinguish water with different algae concentrations. Application for the measurement of backward scattering intensity and laser beam width were explored in distances up to several meters with spatial resolutions of millimeter precision. |
| first_indexed | 2024-03-10T10:16:32Z |
| format | Article |
| id | doaj.art-613c984c3f24432bbb16e85dcfa60114 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T10:16:32Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-613c984c3f24432bbb16e85dcfa601142023-11-22T00:45:55ZengMDPI AGRemote Sensing2072-42922021-06-011312239010.3390/rs13122390Small Angle Scattering Intensity Measurement by an Improved Ocean Scheimpflug Lidar SystemHongwei Zhang0Yuanshuai Zhang1Ziwang Li2Bingyi Liu3Bin Yin4Songhua Wu5Department of Marine Technology, College of Information Science and Engineering, Ocean University of China, Qingdao 266100, ChinaDepartment of Marine Technology, College of Information Science and Engineering, Ocean University of China, Qingdao 266100, ChinaDepartment of Marine Technology, College of Information Science and Engineering, Ocean University of China, Qingdao 266100, ChinaDepartment of Marine Technology, College of Information Science and Engineering, Ocean University of China, Qingdao 266100, ChinaDepartment of Marine Technology, College of Information Science and Engineering, Ocean University of China, Qingdao 266100, ChinaDepartment of Marine Technology, College of Information Science and Engineering, Ocean University of China, Qingdao 266100, ChinaQuantification of the horizontal patterns of phytoplankton and the distribution of suspended particles across the sea’s surface has been greatly improved by traditional passive oceanic color remote sensing technology. Lidar technology has already been proven to be effective positive remote sensing technology to construct high-resolution bathymetry models. Lidar technology significantly improves our ability to model biogeochemical processes in the upper ocean and provides advanced concepts regarding the vertical distribution of suspended particles and oceanic optical properties. In this paper, we present a novel optical approach to measuring the scattering intensity and characteristics of suspended particles within small angles backwards and distinguish water medium with different attenuation coefficients by a laboratory demonstration of the ocean Scheimpflug lidar system. The approach allows the direct determination of the scattering intensity over a small angle at the backward direction (175.8~178.8°) with an angular resolution of 0.38. Corrections for the effects of refraction at the air-glass-water interface were demonstrated. The data production (initial width and width attenuation rate of the laser beam) of the ocean Scheimpflug lidar system were utilized to distinguish water with different algae concentrations. Application for the measurement of backward scattering intensity and laser beam width were explored in distances up to several meters with spatial resolutions of millimeter precision.https://www.mdpi.com/2072-4292/13/12/2390lidarremote sensing sensorsbackward scattering intensityocean Scheimpflug lidarvolume scattering function |
| spellingShingle | Hongwei Zhang Yuanshuai Zhang Ziwang Li Bingyi Liu Bin Yin Songhua Wu Small Angle Scattering Intensity Measurement by an Improved Ocean Scheimpflug Lidar System Remote Sensing lidar remote sensing sensors backward scattering intensity ocean Scheimpflug lidar volume scattering function |
| title | Small Angle Scattering Intensity Measurement by an Improved Ocean Scheimpflug Lidar System |
| title_full | Small Angle Scattering Intensity Measurement by an Improved Ocean Scheimpflug Lidar System |
| title_fullStr | Small Angle Scattering Intensity Measurement by an Improved Ocean Scheimpflug Lidar System |
| title_full_unstemmed | Small Angle Scattering Intensity Measurement by an Improved Ocean Scheimpflug Lidar System |
| title_short | Small Angle Scattering Intensity Measurement by an Improved Ocean Scheimpflug Lidar System |
| title_sort | small angle scattering intensity measurement by an improved ocean scheimpflug lidar system |
| topic | lidar remote sensing sensors backward scattering intensity ocean Scheimpflug lidar volume scattering function |
| url | https://www.mdpi.com/2072-4292/13/12/2390 |
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