当前位置: X-MOL 学术Polar Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Correlations among phytoplankton biomass, sea ice and wind speed in Barents Sea and the future climate trends
Polar Science ( IF 1.5 ) Pub Date : 2020-04-09 , DOI: 10.1016/j.polar.2020.100525
Bo Qu , Albert J. Gabric , Meifang Zeng , Xiao Liu

Global climate closely links with the Arctic Ocean ecosystem especially in the Barents Sea. The distributions and correlations among chlorophyll-a (CHL), sea ice concentration (ICE), wind speed (WIND), sea surface temperature (SST) and mixed layer depth (MLD) are studied within the region of Barents Sea (70°N-80°N, 30°E−40°E) over the period 2003–2013. CHL increased from north to south in general. Ice melted rapidly in the southern region (70°N-75°N) and had less impact than SST on phytoplankton blooming. Melting ice in northern region (75°N-80°N) contributed significant source on phytoplankton development. WIND had negative correlations with CHL in spring blooming season and had positive correlations during autumn.

Dimethylsulfide (DMS) concentration and sea-to-air DMS flux are simulated using a comprehensive biogeochemical model. The key model parameters are calibrated using a genetic algorithm under contemporary climate conditions. Environmental factors and DMS sea-air flux are compared for 1×CO2 and 4×CO2 climate conditions. By 4×CO2, SST increases more than doubles, DMS increases 27.5%. Mean annual DMS sea-to-air flux increases 323%. The increase of DMS flux under 4×CO2 conditions indicates that Arctic climate may be counteracting with the warming by 4×CO2.



中文翻译:

巴伦支海浮游植物生物量,海冰和风速与未来气候趋势之间的关系

全球气候与北冰洋生态系统紧密相连,尤其是在巴伦支海。研究了巴伦支海(70°N)地区的叶绿素a(CHL),海冰浓度(ICE),风速(WIND),海面温度(SST)和混合层深度(MLD)之间的分布和相关性。 2003-2013年期间为-80°N,30°E−40°E)。CHL通常从北到南增加。冰在南部地区(70°N-75°N)迅速融化,对浮游植物开花的影响小于SST。北部地区(75°N-80°N)的融冰是浮游植物发展的重要来源。WIND在春季开花季节与CHL呈负相关,而在秋季呈正相关。

使用全面的生物地球化学模型模拟了二甲基硫(DMS)浓度和海对空DMS通量。在现代气候条件下,使用遗传算法对关键模型参数进行了校准。比较环境因素和DMS海气通量1×CO 2和4×CO 2气候条件。乘4×CO 2,SST增加两倍以上,DMS增加27.5%。DMS的年平均海空通量增加了323%。DMS通量在4以下的增加×CO 2条件表明北极气候可能与4×CO 2

更新日期:2020-04-09
down
wechat
bug