气候变化领域集成服务门户(CCPortal): Ventilation in the Arctic Ocean and the Role of Pacific Inflow Deduced From Transient Tracer Measurements

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DOI	10.1029/2019JC015683
	Ventilation in the Arctic Ocean and the Role of Pacific Inflow Deduced From Transient Tracer Measurements
	Wang W.; Zheng X.; Huang P.; Chen M.; Teng F.; Cai M.; Deng H.; Luo B.; Zheng X.; Ke H.
发表日期	2020
ISSN	21699275
卷号	125 期号:6
英文摘要	During the seventh Chinese National Arctic Research Expedition, measurements of CFC-12 and SF6 were used to estimate ventilation time scales and anthropogenic CO2 (Cant) concentrations in the Arctic Ocean and Bering Sea based on the transit time distribution (TTD) method. The profile distribution showed that there was a high CFC tongue entering through the Canada Basin in the intermediate layer (27.6 kg m−3 < σθ < 28 kg m−3), at latitudes between 75 and 85°N, related to the inflow of Atlantic water. The result shows that both intermediate and deep/bottom waters are better ventilated in the Arctic Ocean than in the Bering Sea. The mean age gradient of the Bering Sea Surface Water and Pacific water core of the southwest Canada Basin (24.7 < σθ < 26.2) could be a consequence of intensive mixing and entrainment of the inflow water from the Bering Sea. An expected difference in age between these areas was interpreted to reflect the transit time for the given water layers. Thus, a mean transit time from the Bering Sea (175.2–179.9°E, 59.7–61.6°N) to the western Arctic Ocean (151.6–158°W, 73.1–74.8°N) of 14.6 ± 4.6 years was estimated. The mean Cant column inventory in the upper 2,000 m was higher (~45 mol m−2) in the Arctic Ocean than in the Bering Sea (~25 mol m−2). ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	anthropogenic carbon; Arctic Ocean; transient tracer; transit time distribution; ventilation
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186846
作者单位	First Institute of Oceanography, Ministry of Natural Resources of China, Qingdao, China; State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China; College of Ocean and Earth Sciences, Xiamen University, Xiamen, China; College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, China; Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, Xiamen University, Xiamen, China
推荐引用方式 GB/T 7714	Wang W.,Zheng X.,Huang P.,et al. Ventilation in the Arctic Ocean and the Role of Pacific Inflow Deduced From Transient Tracer Measurements[J],2020,125(6).
APA	Wang W..,Zheng X..,Huang P..,Chen M..,Teng F..,...&Ke H..(2020).Ventilation in the Arctic Ocean and the Role of Pacific Inflow Deduced From Transient Tracer Measurements.Journal of Geophysical Research: Oceans,125(6).
MLA	Wang W.,et al."Ventilation in the Arctic Ocean and the Role of Pacific Inflow Deduced From Transient Tracer Measurements".Journal of Geophysical Research: Oceans 125.6(2020).