| 中高空间分辨率宽波段光学卫星传感器参数赤潮探测影响研究 |
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| 引用本文： | 葛化鑫,刘荣杰,赵鑫,马毅,王新念,王义衎.中高空间分辨率宽波段光学卫星传感器参数赤潮探测影响研究[J].海洋学报,2022,44(12):136-147. |
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| 作者姓名： | 葛化鑫 刘荣杰 赵鑫 马毅 王新念 王义衎 |
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| 作者单位： | 1.山东科技大学 测绘与空间信息学院，山东 青岛 266590 |
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| 基金项目： | 国家自然科学基金重大项目（61890964）；中韩海洋科学共同研究中心项目（PI-2022-1）。 |
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| 摘 要： | 中高空间分辨率宽波段光学卫星已成为赤潮监测的主要数据源，但与水色卫星传感器不同，中高空间分辨率卫星传感器主要面向陆地应用，其波段数量少、宽度大，由此对赤潮探测带来的影响尚待研究。为此，本文基于不同优势种赤潮实测高光谱数据、时空同步的GF-1 WFV2、GF-1 WFV3传感器影像、Sentinel-2A MSI传感器影像及GF-6 WFV传感器影像，探究了波段设置、光谱响应函数、信噪比及空间分辨率对赤潮探测的影响，并分析了红边波段赤潮探测优势。结果表明:波段设置对赤潮探测影响大，特别是红光波段和红边波段的中心波长和波段宽度；波段设置相同的情况下，赤潮探测精度受光谱响应函数的影响大，受信噪比的影响较小；空间分辨率对赤潮探测的影响较大，空间分辨率的提升有助于提高赤潮探测的精度。红边波段赤潮探测实验表明，较之红光波段，基于红边波段的赤潮探测具有明显的优势，平均F1-Score提高了11%。本文的研究结果一方面可为赤潮中高空间分辨率卫星探测的数据选取提供理论依据，另一方面可为中高空间分辨率卫星传感器的设计提供参考。
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| 关 键 词： | 中高空间分辨率 宽波段 卫星传感器 赤潮探测 |
| 收稿时间： | 2022-06-07 |
Impact of medium and high spatial resolution wide band optical satellite sensor parameters on red tide detection |
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| Institution: | 1.College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao 266590, China2.First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China3.Technology Innovation Center for Ocean Telemetry, Ministry of Natural Resources, Qingdao 266061, China4.College of Oceanography and Space Informatics, China University of Petroleum (East China), Qingdao 266580, China |
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| Abstract: | Medium and high spatial resolution wide-band optical satellites have become the main data source for red tide monitoring, but unlike the ocean color satellite sensors, the medium and high spatial resolution satellite sensors are mainly oriented to terrestrial applications with a small number of bands and a large band width, and the resulting impact on red tide detection has yet to be studied. Therefore, this paper explores the effects of band settings, spectral response functions, signal-to-noise ratio and spatial resolution on red tide detection based on the actual hyperspectral data of different dominant species of red tide, spatio-temporally synchronized GF-1 WFV2 and GF-1 WFV3 sensor images, Sentinel-2A MSI sensor images and GF-6 WFV sensor images, and analyzes the advantages of red-edge band on red tide detection. Our results show that: the band settings have a great influence on the red tide detection, especially the central wavelength and band width of the red band and the red edge band; the red tide detection accuracy is greatly influenced by the spectral response function and less influenced by the signal-to-noise ratio under the same band settings; the spatial resolution has a greater influence on the red tide detection, and the improvement of spatial resolution helps to improve the accuracy of red tide detection. The experiments of red-edge band red tide detection show that red-edge band red tide detection has obvious advantages over red-light band red tide detection, and the F1-Score is improved by 11% on average. The results of this paper provide a theoretical basis for the data selection of red tide detection from medium and high spatial resolution satellites on the one hand, and a reference for the design of medium and high spatial resolution satellite sensors on the other hand. |
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