基于卫星资料的黑海叶绿素a浓度动态

Q4 Environmental Science Marine Biological Journal Pub Date : 2019-06-24 DOI:10.21072/mbj.2019.04.2.09
Z. Finenko, I. M. Mansurova, V. Suslin
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引用次数: 3

摘要

与接触方法相比,利用卫星数据研究叶绿素a的动态,可以进行高频率测量的大规模研究。1998年至2015年在黑海近海和近岸地区进行了此类观测。它们使估计表层叶绿素a的年际动态和揭示藻类大量发育的周期性、强度和持续时间成为可能。在西部和东部气旋环流以及克里米亚和高加索海岸的大陆架区,年叶绿素动力学具有相同的年复一年重复的模式。8 - 9月至次年4 - 5月,叶绿素的变化基本符合正态分布,呈钟形曲线,12 - 1月最大。在秋季,叶绿素浓度随着水冷变和季节性水气减弱而逐渐升高。冬季叶绿素浓度随混合层深度的增加而降低。每年春季浮游植物集约化发育,对流混合减弱,水柱稳定性增强。
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Dynamics of chlorophyll a concentration in the Black Sea on satellite data
The use of satellite data to study the chlorophyll a dynamics, in contrast to contact methods, allows carrying out large scale research with high frequency of measurements. Such observations were carried out in the Black Sea offshore and inshore areas from 1998 to 2015. They made it possible to estimate the annual and interannual chlorophyll a dynamics in the surface layer and to reveal the periodicity, intensity, and duration of mass development of algae. In the western and eastern cyclonic gyres as well as in the shelf zone off the Crimean and Caucasus coasts, annual chlorophyll dynamics had the same pattern as that repeating year after year. From August-September to April-May of the next year the variation of chlorophyll in most cases corresponded to normal distribution and had a form of a bell-shaped curve with maximum observed in December-January. During autumn period, the chlorophyll concentration gradually increased with water cooling and seasonal pycnoclyne weakening. In winter the chlorophyll concentration decreased due to increase of mixed layer depth. Spring phytoplankton intensive development was observed every year when convective mixing weakened and stability of water column increased.
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来源期刊
Marine Biological Journal
Marine Biological Journal Environmental Science-Ecology
CiteScore
0.90
自引率
0.00%
发文量
17
审稿时长
21 weeks
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