Environmental factors controlling the Barents Sea spring‐summer phytoplankton blooms
Environmental factors controlling the Barents Sea spring‐summer phytoplankton blooms
复制标题
控制巴伦支海春夏季浮游植物大量繁殖的环境因素
DOI：
10.1029/2009gl037695
复制
发表时间：
2009
影响因子：
5.2
通讯作者：
C. McClain
中科院分区：
文献类型：
--
作者：
S. Signorini;C. McClain
我们提供了一个物理强迫因素的季节性变化及其对巴伦支海浮游植物水华的时间和强度的影响的分析，重点是不同的功能组，可以区分（颗石藻和其他浮游植物组）使用卫星遥感算法。我们的分析是基于卫星衍生产品和历史水文数据的整合。有一个显着的相移之间的高峰期的硅藻水华在5月的颗石藻水华在8月。在巴伦支海的太阳辐照度和混合层深度的大的季节性变化的驱动下，光和营养盐的变化，是控制这些浮游植物水华的主要环境因素。根据以前的实地活动，确定Emiliana huxleyi在巴伦支海的颗石藻的最主要的物种，我们得出结论，高浓度的方解石在夏季海洋颜色卫星检索是该物种的水华形成颗石藻的结果。方解石浓度和风速平方（R2 = 0.8）之间的强相关性被发现在盛开的高峰期。我们认为，这种相关性是一个指示CO2施肥导致区域增强大气CO2的吸收。
We provide an analysis of the seasonal change of the physical forcing factors and their impact on the timing and intensity of phytoplankton blooms in the Barents Sea, with emphasis on the different functional groups that can be distinguished (coccolithophores and other phytoplankton groups) using satellite remote sensing algorithms. Our analyses are based on an integration of satellite derived products and historical hydrographic data. There is a significant phase shift between the peaks of the diatom bloom in May to the coccolithophore bloom in August. Light and nutrient variability, driven by the large seasonal changes of solar irradiance and mixed layer depth in the Barents Sea, are the major environmental factors controlling these phytoplankton blooms. Based on previous field campaigns that identified Emiliana huxleyi as the most predominant species of coccolithophores in the Barents Sea, we conclude that the high concentration of calcite retrieved by ocean color satellites in summer is a result of bloom‐forming coccolithophores of this species. A strong correlation between calcite concentration and wind speed squared (r2 = 0.8) was found during the peak of the bloom. We suggest that this correlation is an indication of CO2 fertilization resulting from regionally enhanced uptake of atmospheric CO2.