海洋科学2025，Vol.49Issue(9)：1-19,19.DOI:10.11759/hykx20240403001
山东近海温度锋分布特征及季节变化研究
Seasonal distribution and variability of temperature fronts in the coastal waters of Shandong Province
摘要
Abstract
Ocean fronts are significant oceanic phenomena characterized by intense advection and vertical mixing within frontal zones,which induce abrupt variations in hydrographic properties and exert profound influences on the ecological behavior of marine organisms.Using sea surface temperature data in combination with high-resolution climatological numerical model data for China's offshore waters based on the ROMS model,this study analyzes the distribution characteristics and seasonal variations of temperature fronts in the coastal waters of Shandong Province using the Sobel method and identifies three predominant temperature fronts in the region:the coastal front,the Yellow Sea Warm Current front,and the Yellow Sea Cold Water Mass front.Among the three temperature fronts,the coastal front is predominantly distributed in nearshore shallow waters and can be catego-rized into a thermodynamic temperature front and a tidal temperature front.In winter,temperature fronts are wide-spread across all water layers owing to seawater cooling and the influence of the Yellow Sea Warm Current.In late spring,the tidal front and the Yellow Sea Cold Water Mass front begin to form.In summer,the surface temperature front weakens significantly,whereas the tidal front and the cold-water mass front below the surface layer intensify,with the most pronounced temperature front occurring at depths of approximately 15 m below the sea surface.In autumn,the tidal front and the Yellow Sea Cold Water Mass front gradually dissipate,whereas the Yellow Sea Warm Current front develops and reaches its peak intensity in winter.The thermodynamic temperature front,driven by temperature differences arising from differential heating and cooling rates between nearshore and offshore regions,persists throughout all seasons.关键词
温度锋面/ROMS/黄海暖流/黄海冷水团/海洋牧场Key words
temperature front/ROMS/Yellow Sea warm current/Yellow Sea Cold Water Mass/marine ranching分类
海洋科学引用本文复制引用
姜金光,龚旭东,张洪运,刁新源,于非..山东近海温度锋分布特征及季节变化研究[J].海洋科学,2025,49(9):1-19,19.基金项目
国家重点研发计划项目(2022YFC3104402)National Key Research and Development Program of China,No.2022YFC3104402 （2022YFC3104402）
