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Contrasting hydrodynamic responses to atmospheric systems with different scales: Impact of cold fronts vs. that of a hurricane
Huang, Wei Li, C.
Huang, Wei
Li, C.
Abstract
In this paper, subtidal responses of Barataria Bay to an atmospheric cold front in 2014 and Hurricane Barry of 2019 are studied. The cold fronts had shorter influencing periods (1 to 3 days), while Hurricane Barry had a much longer influencing period (about 1 week). Wind direction usually changes from southern quadrants to northern quadrants before and after a cold front’s passage. For a hurricane making its landfall at the norther Gulf of Mexico coast, wind variation is dependent on the location relative to the location of landfall. Consequently, water level usually reaches a trough after the maximum cold front wind usually; while after the maximum wind during a hurricane, water level mostly has a surge, especially on the right-hand side of the hurricane. Water level variation induced by Hurricane Barry is about 3 times of that induced by a cold front event. Water volume flux also shows differences under these two weather types: the volume transport during Hurricane Barry was 4 times of that during a cold front. On the other hand, cold front events are much more frequent (30–40 times a year), and they lead to more frequent exchange between Barataria Bay and the coastal ocean.
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2020-12-01
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jmse_08_00979.pdf
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CCRM Peer Reviewed Articles, Cold front, Hurricane Barry, Multi-inlet, Numerical simulation, Subtidal hydrodynamics
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Virginia Institute of Marine Science
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https://doi.org/10.3390/jmse8120979