The global distribution of f/H and the barotropic response of the ocean
The barotropic response of the ocean over smoothly varying topography is directly related to the potential vorticity gradient (PVG). A global estimate of f/H and PVG has been constructed from a high-resolution digital topographic data base. Four different regimes of the barotropic response of the oc...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19900042577 2023-05-15T18:25:03+02:00 The global distribution of f/H and the barotropic response of the ocean Koblinsky, C. J. Unclassified, Unlimited, Publicly available Mar 15, 1990 http://ntrs.nasa.gov/search.jsp?R=19900042577 unknown http://ntrs.nasa.gov/search.jsp?R=19900042577 Accession ID: 90A29632 Copyright Other Sources 48 Journal of Geophysical Research; 95; 3213-321 1990 ftnasantrs 2012-02-15T18:28:46Z The barotropic response of the ocean over smoothly varying topography is directly related to the potential vorticity gradient (PVG). A global estimate of f/H and PVG has been constructed from a high-resolution digital topographic data base. Four different regimes of the barotropic response of the ocean are suggested by these maps. (1) In the tropical latitudes from 20 deg S to 20 deg N, the response will be similar to a flat-bottom Sverdrup regime. (2) In midlatitudes, north of 30 deg S, the response will be quasi-stationary, weak, and dominated by nonlocal forcing. (3) In a number of small regions throughout the midlatitudes in both hemispheres, the local response should be amplified; and wavelike motions may occur over a broader bandwidth of frequencies. (4) South of 30 deg S, the midocean ridge system becomes zonal and isolates several large regions within closed lines of f/H. In these regions, principally the abyssal plains of the southern ocean, the low-frequency barotropic response of the ocean may be wavelike in character and much stronger than the Sverdrup response. Consequently, this analysis suggessts that the southern ocean may have a stronger barotropic response to wind forcing than the other five major ocean basins. Other/Unknown Material Southern Ocean NASA Technical Reports Server (NTRS) Southern Ocean |
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Open Polar |
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NASA Technical Reports Server (NTRS) |
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ftnasantrs |
language |
unknown |
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48 |
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48 Koblinsky, C. J. The global distribution of f/H and the barotropic response of the ocean |
topic_facet |
48 |
description |
The barotropic response of the ocean over smoothly varying topography is directly related to the potential vorticity gradient (PVG). A global estimate of f/H and PVG has been constructed from a high-resolution digital topographic data base. Four different regimes of the barotropic response of the ocean are suggested by these maps. (1) In the tropical latitudes from 20 deg S to 20 deg N, the response will be similar to a flat-bottom Sverdrup regime. (2) In midlatitudes, north of 30 deg S, the response will be quasi-stationary, weak, and dominated by nonlocal forcing. (3) In a number of small regions throughout the midlatitudes in both hemispheres, the local response should be amplified; and wavelike motions may occur over a broader bandwidth of frequencies. (4) South of 30 deg S, the midocean ridge system becomes zonal and isolates several large regions within closed lines of f/H. In these regions, principally the abyssal plains of the southern ocean, the low-frequency barotropic response of the ocean may be wavelike in character and much stronger than the Sverdrup response. Consequently, this analysis suggessts that the southern ocean may have a stronger barotropic response to wind forcing than the other five major ocean basins. |
format |
Other/Unknown Material |
author |
Koblinsky, C. J. |
author_facet |
Koblinsky, C. J. |
author_sort |
Koblinsky, C. J. |
title |
The global distribution of f/H and the barotropic response of the ocean |
title_short |
The global distribution of f/H and the barotropic response of the ocean |
title_full |
The global distribution of f/H and the barotropic response of the ocean |
title_fullStr |
The global distribution of f/H and the barotropic response of the ocean |
title_full_unstemmed |
The global distribution of f/H and the barotropic response of the ocean |
title_sort |
global distribution of f/h and the barotropic response of the ocean |
publishDate |
1990 |
url |
http://ntrs.nasa.gov/search.jsp?R=19900042577 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19900042577 Accession ID: 90A29632 |
op_rights |
Copyright |
_version_ |
1766206193436459008 |