Impact of climate warming on upper layer of the Bering Sea
Impact of climate warming on upper layer of the Bering Sea
复制标题
DOI：
10.1007/s00382-012-1301-8
复制
发表时间：
2012
期刊：
影响因子：
4.6
通讯作者：
Hyun-Chul Lee;T. Delworth;A. Rosati;Rong‐Hua Zhang;W. Anderson;F. Zeng;C. Stock;A. Gnanadesikan;K. Dixon;S. Griffies
中科院分区：
文献类型：
--
作者：
Hyun-Chul Lee;T. Delworth;A. Rosati;Rong‐Hua Zhang;W. Anderson;F. Zeng;C. Stock;A. Gnanadesikan;K. Dixon;S. Griffies
通过使用高分辨率耦合全球气候模型研究气候变暖对白令海上层的影响。该模型迫使大气中的二氧化碳以每年 1% 的速度增加，直到二氧化碳达到初始值的两倍（70 年后），之后保持不变。受此强迫影响，白令海上层东南陆架升温约 2°C，西部盆地升温略多于 1°C。白令海西部永久温跃层的冬季通风减弱。二氧化碳加倍后，白令海东南部陆架在三月份几乎无冰，而上层的分层在五月和六月加强。气候变暖导致的自然条件变化将影响东南陆架春季生物生产力的前提条件。
The impact of climate warming on the upper layer of the Bering Sea is investigated by using a high-resolution coupled global climate model. The model is forced by increasing atmospheric CO2at a rate of 1% per year until CO2reaches double its initial value (after 70 years), after which it is held constant. In response to this forcing, the upper layer of the Bering Sea warms by about 2°C in the southeastern shelf and by a little more than 1°C in the western basin. The wintertime ventilation to the permanent thermocline weakens in the western Bering Sea. After CO2doubling, the southeastern shelf of the Bering Sea becomes almost ice-free in March, and the stratification of the upper layer strengthens in May and June. Changes of physical condition due to the climate warming would impact the pre-condition of spring bio-productivity in the southeastern shelf.