US GLOBEC:Frontal Exchange Processes Over Eastern Georges Bank

9806379 Beardsley将使用野外工作和模拟相结合的方法研究乔治河岸东部和邻近的东北部埃塞尔-布朗河岸地区的锋面交换过程。现场工作的特点是系泊阵列测量，拉格朗日。漂流观测和几次物理/生物调查，并将侧重于冬春期间，水和生物群的跨锋运输，特别是来自缅因州海湾的Calanus finmarchicus穿越北方侧翼锋面系统（NF'FS）以及鳕鱼幼虫和桡足类通过斯科舍陆架水交叉，被认为对乔治岸目标物种的生存和补充至关重要。模型工作将致力于更好地描述和理解NFFS和海岸东端的其他前沿，重点是从缅因州湾和斯科舍大陆架到乔治海岸东北峰和南翼的水、营养物和生物群的输送机制。对观测和模型结果的综合分析将导致对驱动乔治银行东部锋面交换的物理过程及其生物后果的新的理解和见解。

9806379BeardsleyFrontal exchange processes over eastern Georges Bank and the adjacent Northeast Channel-Browns Bank region will be investigated using a combination of field work and modeling. The field work features moored array measurements, Lagrangian. drifter observations, and several physical/biological surveys, and will focus on the winter-spring period when cross-front transport of water and biota, especially Calanus finmarchicus from the Gulf of Maine across the northern flank frontal system (NF'FS) and larval cod and copepods via Scotian Shelf Water cross-overs, are thought to be most critical for the survival and recruitment of the target species on Georges Bank. The model work will be directed towards an improved description and understanding of the NFFS and other fronts over the eastern end of the Bank with a focus on the mechanisms for transport of water, nutrients and biota from the Gulf of Maine and the Scotian Shelf to the Northeast Peak and southernflank of Georges Bank. Comprehensive analysis of the observational and model results will lead to new understanding and insight into the physical processes driving frontal exchange over eastern Georges Bank and their biological consequences.