This work explores the responses of subsurface dissolved oxygen (DO) to “Wind Pump” impacts of Deep Depression (DD) BOB 04 (2014) with a pre-existing cyclonic eddy based on satellite and Bio-Argo observations in the central Bay of Bengal. Results show the combined influence of the pre-existing cyclonic eddy and DD BOB 04 shoaled the oxycline from 48 m to the shallowest depth 32 m two days after the DD BOB 04. With the pre-existing cyclonic eddy, BOB 04 induced DO decrease in the subsurface for a long time of 18 days. The strong saline stratification suppressed the chlorophyll enhancement along the DD track after its passage. However, this weak DD caused the significant subsurface DO decrease owing to the upwelling. This hovered DD with a pre-existing cyclonic eddy played an important role in governing the boundary of oxygen minimum zone.

中文翻译：

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基于孟加拉湾卫星和生物Argo观测，溶解氧对深陷BOB 04的响应

这项工作利用在孟加拉湾中部湾的卫星和生物Argo观测资料，根据先前存在的气旋涡，探索了地下溶氧（DO）对深De（DD）BOB 04（2014）的“风泵”影响的响应。 。结果表明，已有的气旋涡和DD BOB 04共同作用，将DD氧化氧从DD BOB 04的两天后从48 m推至最浅的深度32 m。在已有的气旋涡的情况下，BOB 04引起的DO降低。地下长达18天。强盐分层抑制了DD通道通过后沿DD通道的叶绿素增强。但是，由于上升，这种弱的DD导致地下DO显着下降。盘旋的DD与先前存在的旋风涡在控制氧气最小区域的边界方面起着重要作用。