Regional Algorithms for Chlorophyll Concentration Estimation in the Kara Sea from MODIS Ocean Color Data

IF 0.9 Q4 OPTICS
S. V. Vazyulya, I. V. Sahling, D. I. Glukhovets, A. B. Demidov
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引用次数: 0

Abstract

This work is devoted to the development of new regional algorithms for chlorophyll concentration estimating in the Kara Sea from MODIS data. For this purpose, data of shipboard measurements of chlorophyll concentration during 10 research cruises in 2009–2022 were used. To develop and evaluate the accuracy of the obtained formulae, two sets of satellite data were formed: with a time difference between satellite and field measurements of less than 5 and 24 h. The paper analyzes the application of two color indices for 488, 531, and 547 nm spectral channels. For the first time, it was proposed to use different algorithms for summer and autumn seasons. The suggested algorithms are to enable improving the quality of monitoring the Kara Sea ecosystem and solving operational problems when planning field measurements.

Abstract Image

基于MODIS海洋颜色数据估算喀拉海叶绿素浓度的区域算法
本文致力于开发利用MODIS数据估算喀拉海叶绿素浓度的新区域算法。为此,利用了2009-2022年10次科研巡航期间的船上叶绿素浓度测量数据。为了开发和评估所得公式的准确性,形成了两组卫星数据:卫星与现场测量的时差分别小于5和24 h。本文分析了两种颜色指数在488、531和547 nm光谱通道上的应用。首次提出在夏季和秋季使用不同的算法。建议的算法能够提高喀拉海生态系统监测的质量,并解决规划野外测量时的操作问题。
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来源期刊
CiteScore
2.40
自引率
42.90%
发文量
84
期刊介绍: Atmospheric and Oceanic Optics  is an international peer reviewed journal that presents experimental and theoretical articles relevant to a wide range of problems of atmospheric and oceanic optics, ecology, and climate. The journal coverage includes: scattering and transfer of optical waves, spectroscopy of atmospheric gases, turbulent and nonlinear optical phenomena, adaptive optics, remote (ground-based, airborne, and spaceborne) sensing of the atmosphere and the surface, methods for solving of inverse problems, new equipment for optical investigations, development of computer programs and databases for optical studies. Thematic issues are devoted to the studies of atmospheric ozone, adaptive, nonlinear, and coherent optics, regional climate and environmental monitoring, and other subjects.
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