阿拉伯上升流温度锋面时空分布特征分析  

Analysis on the Temporal and Spatial Distribution Characteristics of the Upwelling Front in the Arabian Sea

作　　者：刘鹏[1] 张永刚[1] 刘建斌 

机构地区：[1]海军大连舰艇学院,辽宁大连116001 [2]海军航空兵胶州场站气象台,山东青岛266300

出　　处：《海洋技术学报》2017年第3期13-17,共5页Journal of Ocean Technology

摘　　要：阿拉伯上升流区域水文环境复杂,地理位置重要,研究该海区的水文特征具有重要的意义。基于WOA13数据,利用绝对梯度最大值法提取了锋面的锋轴线,简要分析阿拉伯上升流海区的温度锋的时空分布特征和强度分布特征。结果表明,阿拉伯上升流锋主要存在于春夏两季,沿阿拉伯半岛东海岸线分布,存在于13°N^19°N之间,随深增加锋轴线逐渐远离海岸。水平上锋强度较大地区位于夏季的13°N^16°N和19°N附近,垂直方向上锋强度较大地区位于40~100 m之间。The upwelling area of the Arabian Sea, featured by its very complex hydrological environment, is important for its geographical position. It is of important research value and military value to probe into this sea area. Based on the processing of WOA13 data, this paper uses the Absolute Gradient Maximum method to extract the frontal axis from the ocean front, and briefly analyzes the temporal and spatial distribution as well as intensity distribution characteristics of the Arabia Sea upwelling area. The results show that the Arabian upwelling front exists mainly in the spring and summer, and distributes along the east coastline of the Arabian Peninsula,between 13° N-19° N. As the depth increases, the front axis becomes gradually apart from the coast. In the horizontal direction, the region with greater frontal intensity locates around 13 °N-16°N and 19°N in summer. In the vertical direction, the region with greater frontal intensity locates between 40 m to 100 m.

关 键 词：阿拉伯上升流锋 WOA13数据 锋轴线 锋强度 

分 类 号：P731[天文地球—海洋科学]