Transient response of the Northwestern Iberian upwelling regime.
Transient response of the Northwestern Iberian upwelling regime.
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DOI：
10.1371/journal.pone.0197627
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发表时间：
2018
期刊：
影响因子：
3.7
通讯作者：
Desmond Barton E
中科院分区：
文献类型：
--
作者：
Ferreira Cordeiro NG;Dubert J;Nolasco R;Desmond Barton E
2009年7月，在一系列现场和遥感观测的基础上，探索了伊比利亚西北边缘的水文和动态。利用标准CTD铸型、拖曳CTD(SeaSoar)、声学多普勒海流剖面仪(ADCP)和拉格朗日观测的纬向剖面研究了该地区的上升流和松弛周期。有两段时间的偏北风，加上松弛时间的限制，形成了一道延伸至大陆架边缘的上升气流。随着北风的冲击，陆架上迅速形成了赤道气流。在西莱罗角以南，在上升流喷流运送的拉格朗日漂流者之后，在大陆架上对上升流事件的发展和随后的缓和进行了密集的调查。这一地区是从西莱罗角延伸到波尔图的上升流中心的一部分，在上升流有利的风作用下，波尔图的表面温度比邻近地区低。随着这些风的减弱，持续的极地气流发展起来，起源于上升流中心以南，并包含在温暖水域的内陆架舌状物中。在一次强偏南风过程中，观测到极地气流扩展到整个大陆架。尽管巡航是在夏季进行的，但在货架上观察到了河流羽流的存在。文中还从沿岸辐合和近海平流的角度描述了羽流与大陆架环流的相互作用。对近海和斜坡区的采样表明，近海存在伊比利亚向极流，上坡持续向赤道流动。
The hydrography and dynamics of NW Iberian margin were explored for July 2009, based on a set of in situ and remote sensing observations. Zonal sections of standard CTD casts, towed CTD (SeaSoar), Acoustic Doppler Current Profilers (ADCP) and Lagrangian surveys were made to characterize cycles of upwelling and relaxation in this region. Two periods of northerly winds, bounded by relaxation periods, were responsible for the formation of an upwelling front extending to the shelf edge. An equatorward flow was quickly set up on the shelf responding to the northerly wind pulses. South of Cape Silleiro, the development and subsequent relaxation of an upwelling event was intensively surveyed in the shelf, following a Lagrangian drifter transported by the upwelling jet. This region is part of an upwelling center extending from Cape Silleiro to Porto, where the surface temperature was colder than the neighboring regions, under upwelling favorable winds. As these winds relaxed, persistent poleward flow developed, originating south of the upwelling center and consisting in an inner-shelf tongue of warm waters. During an event of strong southerly wind, the poleward flow was observed to extend to the whole continental shelf. Although the cruise was executed during summertime, the presence of river-plumes was observed over the shelf. The interaction of the plumes with the circulation on the shelf was also described in terms of coastal convergence and offshore advection. The sampling of the offshore and slope regions showed the presence of the Iberian poleward current offshore and a persistent equatorward flow over the upper slope.
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影响因子：
3.6
作者：
Gan, JP;Allen, JS
通讯作者：
Allen, JS
影响因子：
3.6
作者：
NYKJAER, L;VANCAMP, L
通讯作者：
VANCAMP, L
DOI：
10.1016/j.dsr.2004.11.005
发表时间：
2005-04-01
影响因子：
2.4
作者：
Peliz, A;Dubert, J;Le Cann, B
通讯作者：
Le Cann, B
影响因子：
2.8
作者：
Ribeiro, AC;Peliz, A;Santos, AMP
通讯作者：
Santos, AMP
影响因子：
2.3
作者：
AlvarezSalgado, XA;Castro, CG;Fraga, F
通讯作者：
Fraga, F