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Interseasonal Variability in Methane Concentrations and Fluxes at the Water–Atmosphere Boundary in the Western Sea of Okhotsk
Oceanology ( IF 1.3 ) Pub Date : 2020-02-25 , DOI: 10.1134/s0001437019060158
A. I. Obzhirov , G. I. Mishukova , R. B. Shakirov , V. F. Mishukov , E. V. Maltseva , N. L. Sokolova , A. K. Okulov , A. V. Yatsuk , E. V. Lifanskiy

Abstract

Intra-annual variability in methane fluxes at the water–atmosphere boundary was shown for the first time in the water area of the Sea of Okhotsk east of Sakhalin Island. The variability in methane fluxes is determined by the presence and activity of submarine methane sources and is related to seasonal changes in the hydrological and hydrochemical parameters of seawater and current structure in this region. In spring and autumn, the average fluxes are higher than in those in summer. The methane flux from the sea surface decreases during summer water modification and the increase in stratification. In autumn, methane accumulated in transitional waters is emitted into the atmosphere due to seasonal water convection and high average wind speed.


中文翻译:

鄂霍次克海西部水-气边界处甲烷浓度和通量的季节间变化

摘要

萨哈林岛以东的鄂霍次克海水域首次显示了水-气边界处甲烷通量的年内变化。甲烷通量的可变性取决于海底甲烷源的存在和活动,并且与该地区海水的水文和水化学参数以及当前结构的季节性变化有关。在春季和秋季,平均通量高于夏季。在夏季调水和分层增加期间,来自海面的甲烷通量减少。在秋天,由于季节性水对流和高平均风速,过渡水中积聚的甲烷被排放到大气中。
更新日期:2020-02-25
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