Upwelling source depth in the presence of nearshore wind stress curl
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چکیده
منابع مشابه
Upwelling source depth in the presence of nearshore wind stress curl
[1] The influence of nearshore wind stress curl on the relative partitioning of bottom boundary layer (BBL) and interior transport within an idealized, two-dimensional coastal upwelling system is studied theoretically and using a numerical model. A nearshore reduction in upwelling favorable wind stress amplitude (1) reduces the width of the inner shelf, (2) reduces the local wind-driven Ekman t...
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[1] Data from the SeaWinds scatterometer on the QuikSCAT satellite are used to estimate upwelling around Cabo Frio, Brazil, due to Ekman transport and Ekman pumping. The region close to shore (up to 200 km from the coast) is characterized by negative wind stress curl (upwelling favorable) year-round, with maximum values during summer, and minimum values during fall. Integrated values from São S...
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This study utilizes field observations in southern Monterey Bay, CA, to examine how regionalscale upwelling and changing offshore (shelf) conditions influence nearshore internal bores. We show that the low-frequency wind forcing (e.g., upwelling/relaxation time scales) modifies the offshore stratification and thermocline depth. This in turn alters the strength and structure of observed internal...
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Upwelling of nutrient-rich, subsurface water sustains high productivity in the ocean's eastern boundary currents. These ecosystems support a rate of fish harvest nearly 100 times the global mean and account for >20% of the world's marine fish catch. Environmental variability is thought to be the major cause of the decadal-scale biomass fluctuations characteristic of fish populations in these re...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Oceans
سال: 2012
ISSN: 0148-0227
DOI: 10.1029/2011jc007856