Independent components of spatial-temporal structure of chlorophyll a patterns in the upper layer of the north-western shelf of the Black Sea

IF 1.8 Q3 ECOLOGY One Ecosystem Pub Date : 2021-12-02 DOI:10.3897/oneeco.6.e73269
N. Kyrylenko, V. Evstigneev
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Abstract

In the present study, the results of independent component decomposition of satellite-derived chlorophyll a (Chla) patterns for the north-western part of the Black Sea are presented. The study has been carried out on the basis of the DINEOF-reconstructed dataset of 8-day average log-transformed Chla (alChla) patterns for 1997-2016. The alChla patterns were decomposed into six independent components of its spatio-temporal variability in the north-western shelf of the Black Sea. The independent components reflect the spatial distribution of alChla anomalies which are likely to be formed under the influence of sea circulation factors driven by wind. The paper presents the results of the analysis of the intra-annual variability of independent components. The interpretation of the patterns of intra-annual independent components variability is given, taking into account the seasonal variability of the wind factor, the flow of the Danube, the Dnieper and Southern Bug rivers and the fact of modulation of independent components dynamics by seasonal phytoplankton succession.
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黑海西北陆架上层叶绿素a模式时空结构的独立成分
在本研究中,给出了黑海西北部卫星叶绿素a(Chla)模式的独立分量分解结果。这项研究是在1997-2016年DINEOF重建的8天平均对数转换Chla(alChla)模式数据集的基础上进行的。在黑海西北陆架,alChla模式被分解为其时空变异的六个独立组成部分。独立分量反映了在风驱动的海洋环流因素影响下可能形成的alChla异常的空间分布。本文介绍了独立成分年内变异性的分析结果。考虑到风因子的季节性变化、多瑙河、第聂伯河和南布格河的流量以及季节性浮游植物演替对独立成分动态的调节,对年内独立成分变化模式进行了解释。
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来源期刊
One Ecosystem
One Ecosystem Environmental Science-Nature and Landscape Conservation
CiteScore
4.60
自引率
0.00%
发文量
26
审稿时长
12 weeks
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