Ocean structure and climate (Eastern North Atlantic): in situ measurement and remote sensing (altimeter)
Structure and climate of the east North Atlantic are appraised within a framework of in situ measurement and altimeter remote sensing from 0°–60°N. Long zonal expendable bathythermograph/conductivity–temperature–depth probe sections show repeating internal structure in the North Atlantic Ocean. Drog...
Published in: | Journal of the Marine Biological Association of the United Kingdom |
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Cambridge University Press (CUP)
2002
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Online Access: | http://dx.doi.org/10.1017/s0025315402006082 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315402006082 |
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crcambridgeupr:10.1017/s0025315402006082 2024-09-09T19:54:17+00:00 Ocean structure and climate (Eastern North Atlantic): in situ measurement and remote sensing (altimeter) Pingree, Robin 2002 http://dx.doi.org/10.1017/s0025315402006082 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315402006082 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of the Marine Biological Association of the United Kingdom volume 82, issue 5, page 681-707 ISSN 0025-3154 1469-7769 journal-article 2002 crcambridgeupr https://doi.org/10.1017/s0025315402006082 2024-06-19T04:04:21Z Structure and climate of the east North Atlantic are appraised within a framework of in situ measurement and altimeter remote sensing from 0°–60°N. Long zonal expendable bathythermograph/conductivity–temperature–depth probe sections show repeating internal structure in the North Atlantic Ocean. Drogued buoys and subsurface floats give westward speeds for eddies and wavelike structure. Records from longterm current meter deployments give the periodicity of the repeating structure. Eddy and wave characteristics of period, size or wavelength, westward propagation speed, and mean currents are derived at 20°N, 26°N, 32·5°N, 36°N and 48°N from in situ measurements in the Atlantic Ocean. It is shown that ocean wave and eddy-like features measured in situ correlate with altimeter structure. Interior ocean wave crests or cold dome-like temperature structures are cyclonic and have negative surface altimeter anomalies; mesoscale internal wave troughs or warm structures are anticyclonic and have positive surface height anomalies. Along the Eastern Boundary, flows and temperature climate are examined in terms of sla and North Atlantic Oscillation (NAO) Index. Longterm changes in ocean climate and circulation are derived from sla data. It is shown that longterm changes from 1992 to 2002 in the North Atlantic Current and the Subtropical Gyre transport determined from sla data correlate with winter NAO Index such that maximum flow conditions occurred in 1995 and 2000. Minimum circulation conditions occurred between 1996–1998. Years of extreme negative winter NAO Index result in enhanced poleward flow along the Eastern Boundary and anomalous winter warming along the West European Continental Slope as was measured in 1990, 1996, 1998 and 2001. Article in Journal/Newspaper north atlantic current North Atlantic North Atlantic oscillation Cambridge University Press Journal of the Marine Biological Association of the United Kingdom 82 5 681 707 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Structure and climate of the east North Atlantic are appraised within a framework of in situ measurement and altimeter remote sensing from 0°–60°N. Long zonal expendable bathythermograph/conductivity–temperature–depth probe sections show repeating internal structure in the North Atlantic Ocean. Drogued buoys and subsurface floats give westward speeds for eddies and wavelike structure. Records from longterm current meter deployments give the periodicity of the repeating structure. Eddy and wave characteristics of period, size or wavelength, westward propagation speed, and mean currents are derived at 20°N, 26°N, 32·5°N, 36°N and 48°N from in situ measurements in the Atlantic Ocean. It is shown that ocean wave and eddy-like features measured in situ correlate with altimeter structure. Interior ocean wave crests or cold dome-like temperature structures are cyclonic and have negative surface altimeter anomalies; mesoscale internal wave troughs or warm structures are anticyclonic and have positive surface height anomalies. Along the Eastern Boundary, flows and temperature climate are examined in terms of sla and North Atlantic Oscillation (NAO) Index. Longterm changes in ocean climate and circulation are derived from sla data. It is shown that longterm changes from 1992 to 2002 in the North Atlantic Current and the Subtropical Gyre transport determined from sla data correlate with winter NAO Index such that maximum flow conditions occurred in 1995 and 2000. Minimum circulation conditions occurred between 1996–1998. Years of extreme negative winter NAO Index result in enhanced poleward flow along the Eastern Boundary and anomalous winter warming along the West European Continental Slope as was measured in 1990, 1996, 1998 and 2001. |
format |
Article in Journal/Newspaper |
author |
Pingree, Robin |
spellingShingle |
Pingree, Robin Ocean structure and climate (Eastern North Atlantic): in situ measurement and remote sensing (altimeter) |
author_facet |
Pingree, Robin |
author_sort |
Pingree, Robin |
title |
Ocean structure and climate (Eastern North Atlantic): in situ measurement and remote sensing (altimeter) |
title_short |
Ocean structure and climate (Eastern North Atlantic): in situ measurement and remote sensing (altimeter) |
title_full |
Ocean structure and climate (Eastern North Atlantic): in situ measurement and remote sensing (altimeter) |
title_fullStr |
Ocean structure and climate (Eastern North Atlantic): in situ measurement and remote sensing (altimeter) |
title_full_unstemmed |
Ocean structure and climate (Eastern North Atlantic): in situ measurement and remote sensing (altimeter) |
title_sort |
ocean structure and climate (eastern north atlantic): in situ measurement and remote sensing (altimeter) |
publisher |
Cambridge University Press (CUP) |
publishDate |
2002 |
url |
http://dx.doi.org/10.1017/s0025315402006082 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315402006082 |
genre |
north atlantic current North Atlantic North Atlantic oscillation |
genre_facet |
north atlantic current North Atlantic North Atlantic oscillation |
op_source |
Journal of the Marine Biological Association of the United Kingdom volume 82, issue 5, page 681-707 ISSN 0025-3154 1469-7769 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0025315402006082 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
82 |
container_issue |
5 |
container_start_page |
681 |
op_container_end_page |
707 |
_version_ |
1809923691681677312 |