Interannual variability in the Yucatan Channel flow

Interannual variability in the Yucatan Channel flow
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尤卡坦海峡流量的年际变化

DOI:
10.1002/2014gl062674
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发表时间:
2015
影响因子:
5.2
通讯作者:
J. Candela
J. Candela
中科院分区:
地球科学1区
文献类型:
--
作者:
G. Athié;J. Sheinbaum;R. Leben;J. Ochoa;M. Shannon;J. Candela

文献摘要

被引文献

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2010年5月至2011年5月和2012年7月至2013年6月在尤卡坦海峡进行的系泊测量得出的平均输运分别为27和25 Sv,亚惯性标准差为3.5 Sv。这些平均运输值高于21个月类似测量(1999-2001年)报告的23 Sv。基于20年测高数据的传输代理的低频变化分析表明,在1999-2001年期间,通过尤卡坦海峡的流量非常低。这表明,需要通过墨西哥湾外的其他通道进行相当大的补偿,以匹配27°N处佛罗里达海流的传输电缆测量。
Mooring measurements in the Yucatan Channel, from May 2010 to May 2011 and from July 2012 to June 2013 yield a mean transport of 27 and 25 Sv, respectively, with a subinertial standard deviation of 3.5 Sv. These mean transport values are higher than the 23 Sv reported from 21 months of similar measurements (1999–2001). Analysis of low‐frequency variations of a transport proxy based on 20 years of altimetry data indicates that during 1999–2001, the flow through Yucatan Channel was anomalously low. This suggests that a sizable compensation through other channels off the Gulf of Mexico is required to match the transport cable measurements of the Florida Current at 27°N.