Cross-frontal transport along the Keweenaw coast in Lake Superior: a Lagrangian model study

摘要: Offshore transport across the thermal front along Keweenaw coast in Lake Superior was examined by tracking trajectories of water particles model-simulated three-dimensional (3D) flow field July 1973. Particles were released at different depths and horizontal locations within Current during various wind events tracked until end month. The showed a remarkable offshore cross-frontal topographic-splitting point on eastern side Waterway near Eagle Harbor. This driven dominantly wind-induced Ekman surface but controlled local bottom topography deep region. A northeastward prevailed over lake tended to produce onshore transports hence caused downwelling against coast. An current expected region based conservation mass. vortex shedding off coastal bathymetry abutments plus baroclinic instability also led meandering temperature varying topography. cyclonic vorticity drove northern Peninsula.