contributor author | O'Brien, James J. | |
contributor author | Hurlburt, H. E. | |
date accessioned | 2017-06-09T14:43:31Z | |
date available | 2017-06-09T14:43:31Z | |
date copyright | 1972/01/01 | |
date issued | 1972 | |
identifier issn | 0022-3670 | |
identifier other | ams-25285.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4162051 | |
description abstract | A wind-driven model of coastal upwelling induced into a stratified, rotating ocean is solved numerically. The circulation is on an f plane and longshore variations are neglected. A multilevel model is derived, but only solutions for a two-layer model are discussed. A longshore baroclinic surface jet is discovered. The time-dependent geostrophic jet is dynamically explained by conservation of potential vorticity. The existence of the jet depends critically on stratification and non-zero wind stress at the coast. Coastal upwelling is confined to within 30 km of the shore. The model exhibits no deep countercurrent during active coastal upwelling. A time scale of the order of 10 days or longer is required for a pycnocline at 50 m depth to penetrate the surface. Solutions for a wide (>300 km) coastal shelf, an irregular shallow shelf, and a continental slope region are illustrated. A secondary upwelling region is found offshore at sharp breaks in the shelf topography. In all cases, the offshore flow is a simple Ekman drift and downwelling offshore is created by Ekman pumping caused by negative wind-stress curl. | |
publisher | American Meteorological Society | |
title | A Numerical Model of Coastal Upwelling | |
type | Journal Paper | |
journal volume | 2 | |
journal issue | 1 | |
journal title | Journal of Physical Oceanography | |
identifier doi | 10.1175/1520-0485(1972)002<0014:ANMOCU>2.0.CO;2 | |
journal fristpage | 14 | |
journal lastpage | 26 | |
tree | Journal of Physical Oceanography:;1972:;Volume( 002 ):;issue: 001 | |
contenttype | Fulltext | |