丹麦海峡海洋锋时空变化特征研究

发布时间：2018-06-27 09:10

本文选题：丹麦海峡锋 + 锋轴线　；参考：《海洋学研究》2016年02期

【摘要】：丹麦海峡海洋锋可为局地气候变化、海峡鱼类分布以及海峡中尺度涡等方面研究提供参考,在军事领域也具有较高应用价值。然而目前国内外缺乏对于丹麦海峡锋的系统研究。本文利用WOA13数据,对丹麦海峡锋位置、强度空间分布以及相应的季节变化进行了分析。结果显示,锋轴线位置在34°W以西150m以浅相对稳定,34°W以东锋轴线随深度和季节均有摆动。锋强度在水平和垂直方向分布不均匀,水平方向上锋轴线最大值与最小值差值一般在3倍以上。垂直方向盐度锋主要集中在100m以浅,且强度随深度不断减小;温度锋强度最大值在表层以下且在300m以深随深度增加锋强度减小,但有一些区域如27°W和28°W附近,受到海底地形的影响温度锋强度随着深度的变化有大幅度增加的特点。
[Abstract]:The sea front in the Danish Strait can be used as a reference for the study of local climate change, fish distribution and mesoscale vorticity in the Strait, and also has a high application value in the military field. However, there is a lack of systematic research on the Danish Strait front at home and abroad. Based on WOA13 data, the position, intensity spatial distribution and seasonal variation of the front in the Danish Strait are analyzed. The results show that the position of the front axis is about 150 m west of 34 掳W, and the axis of the front east of 34 掳W is relatively stable with the depth and season. The distribution of the front strength is not uniform in horizontal and vertical directions, and the difference between the maximum and minimum of the axis of the front in horizontal direction is generally more than 3 times. The vertical salinity front is mainly shallow at 100 m and the intensity decreases with the depth, and the maximum intensity of the temperature front decreases below the surface layer and increases with the depth at 300 m, but there are some regions such as 27 掳W and 28 掳W. The intensity of temperature front increases greatly with the change of depth due to the influence of submarine topography.
【作者单位】：海军航空兵胶州场站;海军大连舰艇学院;
【分类号】：P731.2

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