卫星数据在反演黑海水域光吸收特性中的应用

IF 0.7 Q4 OCEANOGRAPHY
V. S. Suetin, S. Korolev
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引用次数: 1

摘要

意图他的工作旨在研究黑海水域中光吸收的影响,并适当考虑其单个成分的变化,以及它们如何在美国国家航空航天局通过使用通用运算方法处理卫星数据计算叶绿素a浓度的档案结果中表现出来。方法和结果。分析了美国国家航空航天局MODIS和SeaWiFS卫星仪器的档案数据,以及与黄色物质和浮游植物相关的光吸收成分(通过检索海洋固有光学特性的广义海洋颜色反演模型(GIOP)方法确定)的值。为了避免确定海洋遥感反射率的结果和应用GIOP方法产生的产品中可能出现的各种失真,只使用了来自克里米亚南部海岸附近和多瑙河河口以南两个地区的特别选择的足够可靠的测试数据。结论。在所考虑的海水中叶绿素a含量低的例子中,黄色物质在光谱蓝色部分的光吸收中起主要作用,而如果叶绿素a含量高,则浮游植物的贡献占主导地位。所揭示的与黄色物质和浮游植物相关的光吸收成分之间的关系与作为确定叶绿素a浓度的通用方法(在美国国家航空航天局用于卫星数据操作处理)基础而隐含预设的关系显著不同。反过来,这表现在这样一个事实上,即美国国家航空航天局档案中存储的黑海叶绿素a浓度数据可能在叶绿素a浓度低的情况下被高估,而在叶绿素a高的情况下则被低估。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Application of Satellite Data for Retrieving the Light Absorption Characteristics in the Black Sea Waters
Purpose. he work is aimed at studying the effects of light absorption in the Black Sea waters with due regard for the variations of its individual components, and how they are manifested in the NASA archival results of calculating the chlorophyll a concentration obtained by processing satellite data using the universal operational method. Methods and Results. The NASA archival data of the MODIS and SeaWiFS satellite instruments, and the values of the light absorption components (determined by the method of Generalized ocean color inversion model for retrieving marine inherent optical properties (GIOP)) related to yellow substance and phytoplankton were analyzed. In order to avoid possible manifestations of various distortions in the results of determining the remote sensing reflectance of the sea and in the products resulted from application of the GIOP method, only the specially selected and sufficiently reliable test data from two areas located near the Crimea Southern Coast and south of the Danube estuary were used. Conclusions. In the considered examples with low content of chlorophyll a in the seawater, the yellow substance plays a predominant role in light absorption in the spectrum blue part, whereas if the chlorophyll a content is high, the phytoplankton contribution is dominant. The revealed relationship between the light absorption components related to yellow substance and phytoplankton significantly differs from that implicitly preset as a basis of the universal method (applied in NASA for the satellite data operational processing) for determining the chlorophyll a concentration. This, in its turn, is manifested in the fact that the data on the chlorophyll a concentration in the Black Sea stored in the NASA archive may be overestimated in case the chlorophyll a concentration is low, and underestimated – in case it is high.
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来源期刊
Physical Oceanography
Physical Oceanography OCEANOGRAPHY-
CiteScore
1.80
自引率
25.00%
发文量
8
审稿时长
24 weeks
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