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Marine Heatwave of Sea Surface Temperature of the Oyashio Region in Summer in 2010–2016
Frontiers in Marine Science ( IF 3.7 ) Pub Date : 2021-01-14 , DOI: 10.3389/fmars.2020.576240
Toru Miyama , Shoshiro Minobe , Hanako Goto

The sea surface temperature (SST) of the Oyashio region in boreal summer abruptly increased in 2010 and high summertime SST repeated every year until 2016. Observations and an ocean reanalysis show that this marine heatwave occurred not only at the surface but also at deeper depths down to 200 m. Furthermore, salinity in summer also increased in parallel with the temperature. The rises in temperature and salinity indicate the strengthening of the Kuroshio water influence. The sea surface height and velocity show that the southward intrusion of the Oyashio near the coast in summer weakened from 2010 accompanied by an increase in anticyclonic eddies from the Kuroshio Extension. The much more frequent existence of anticyclonic eddies to the east of the first intrusion of the Oyashio in summer is closely associated with the weakening of the first intrusion and the strengthening of the second intrusion. It is suggested that the rise in the water temperature could increase a catch of yellowtail (Seriola quinqueradiata) in northern Japan.

中文翻译:

2010-2016年夏季亲潮地区海面温度的海洋热浪

2010 年北方夏季亲潮地区的海面温度 (SST) 突然升高,直到 2016 年,夏季的高海温每年都在重复。 观测和海洋再分析表明,这种海洋热浪不仅发生在表面,而且发生在更深的深处到 200 m。此外,夏季的盐度也随着温度的升高而增加。温度和盐度的升高表明黑潮水影响的加强。海面高度和速度表明,夏季近岸亲潮向南的入侵从 2010 年开始减弱,伴随着黑潮延伸部分的反气旋涡流增加。夏季亲潮第一次侵入以东反气旋涡流的频繁存在与第一次侵入的减弱和第二次侵入的加强密切相关。有人认为,水温升高可能会增加日本北部黄尾鰤(Seriola quinqueradiata)的捕获量。
更新日期:2021-01-14
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