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Linking surface and sub-surface variability in Drake Passage

Linking surface and sub-surface variability in Drake Passage
Linking surface and sub-surface variability in Drake Passage
The Antarctic Circumpolar Current (ACC) is the largest current in the world, with a mean transport of 134 Sv, and it provides a significant barrier to the oceanic transfer of heat from mid-latitudes to polar regions. Infrequent full-depth hydrographic sections have shown large variability in the transport of the ACC and the position of its constituent fronts. The many sources of satellite remote-sensing data, with much more frequent sampling, offer another vista on such variability. The question we address here is how the spatial patterns and modes of variability recorded from satellite data relate to the observations from ships. In this paper, we confine our studies to height and temperature data from sensors that are unaffected by clouds, and thus provide near-complete records along the same. The seasonal variations in temperature are deeper south of 60°S, whereas the interannual variations, associated with meandering fronts, occur further north and are deeper. The variability signal from altimetry lies further north again.
Polar Front, Sea surface temperature, Dynamic height, altimetry, XBTs
978-1-4244-2807-6
[4p]
Institute of Electrical and Electronics Engineers
Quartly, Graham D.
3d1e4e87-f001-4d18-b95f-9bca4db6ff9d
Gomez-Enri, Jesus
1f086a9f-927e-4a9d-b352-f43a2311930f
Navarro, Gabriel
67818bdc-1360-47e6-8f91-405fae1f6fdd
Quartly, Graham D.
3d1e4e87-f001-4d18-b95f-9bca4db6ff9d
Gomez-Enri, Jesus
1f086a9f-927e-4a9d-b352-f43a2311930f
Navarro, Gabriel
67818bdc-1360-47e6-8f91-405fae1f6fdd

Quartly, Graham D., Gomez-Enri, Jesus and Navarro, Gabriel (2008) Linking surface and sub-surface variability in Drake Passage. In Proceedings of IEEE Geoscience and Remote Sensing Symposium, Boston MS, 6-11 Jul 2008. Institute of Electrical and Electronics Engineers. [4p] . (doi:10.1109/IGARSS.2008.4779329).

Record type: Conference or Workshop Item (Paper)

Abstract

The Antarctic Circumpolar Current (ACC) is the largest current in the world, with a mean transport of 134 Sv, and it provides a significant barrier to the oceanic transfer of heat from mid-latitudes to polar regions. Infrequent full-depth hydrographic sections have shown large variability in the transport of the ACC and the position of its constituent fronts. The many sources of satellite remote-sensing data, with much more frequent sampling, offer another vista on such variability. The question we address here is how the spatial patterns and modes of variability recorded from satellite data relate to the observations from ships. In this paper, we confine our studies to height and temperature data from sensors that are unaffected by clouds, and thus provide near-complete records along the same. The seasonal variations in temperature are deeper south of 60°S, whereas the interannual variations, associated with meandering fronts, occur further north and are deeper. The variability signal from altimetry lies further north again.

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More information

Published date: 2008
Additional Information: Proceedings issued on CD-DVD. Paper No. III-246
Venue - Dates: IGARSS 2008: IEEE Geoscience and Remote Sensing Symposium 2008, Boston, United States, 2008-07-06 - 2008-07-11
Keywords: Polar Front, Sea surface temperature, Dynamic height, altimetry, XBTs

Identifiers

Local EPrints ID: 64872
URI: http://eprints.soton.ac.uk/id/eprint/64872
ISBN: 978-1-4244-2807-6
PURE UUID: 326ba115-efbb-4d6e-9970-377f3f30e292

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Date deposited: 20 Jan 2009
Last modified: 24 Oct 2023 22:32

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Contributors

Author: Graham D. Quartly
Author: Jesus Gomez-Enri
Author: Gabriel Navarro

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