Changes in ocean water mass properties: oscillations or trends?
Changes in ocean water mass properties: oscillations or trends?
A new transindian hydrographic section across 32°S reveals that thermocline mode waters have become saltier and colder since 1987. This change almost entirely reverses the observed freshening of mode waters from the 1960s to 1987 that has been interpreted to be the result of anthropogenic climate change on the basis of coupled climate models. Here, we compare five hydrographic sections from 1936, 1965, 1987, 1995, and 2002 to show that upper thermocline waters (10°C to 17°C) changed little from 1936to 1965, freshened from 1965 to 1987, and since 1987 have become saltier. These results demonstrate substantial oscillations in mode-water properties.
2086-2088
Bryden, H.L.
7f823946-34e8-48a3-8bd4-a72d2d749184
McDonagh, E.L.
47e26eeb-b774-4068-af07-31847e42b977
King, B.A.
d9d50671-3777-453b-9f85-c67a56a4d8b8
2003
Bryden, H.L.
7f823946-34e8-48a3-8bd4-a72d2d749184
McDonagh, E.L.
47e26eeb-b774-4068-af07-31847e42b977
King, B.A.
d9d50671-3777-453b-9f85-c67a56a4d8b8
Bryden, H.L., McDonagh, E.L. and King, B.A.
(2003)
Changes in ocean water mass properties: oscillations or trends?
Science, 300 (5628), .
(doi:10.1126/science.1083980).
Abstract
A new transindian hydrographic section across 32°S reveals that thermocline mode waters have become saltier and colder since 1987. This change almost entirely reverses the observed freshening of mode waters from the 1960s to 1987 that has been interpreted to be the result of anthropogenic climate change on the basis of coupled climate models. Here, we compare five hydrographic sections from 1936, 1965, 1987, 1995, and 2002 to show that upper thermocline waters (10°C to 17°C) changed little from 1936to 1965, freshened from 1965 to 1987, and since 1987 have become saltier. These results demonstrate substantial oscillations in mode-water properties.
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Published date: 2003
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Local EPrints ID: 2000
URI: http://eprints.soton.ac.uk/id/eprint/2000
ISSN: 0036-8075
PURE UUID: c5e04a68-f14e-4001-9a75-2ea0fb260685
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Date deposited: 07 May 2004
Last modified: 16 Mar 2024 02:53
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Author:
E.L. McDonagh
Author:
B.A. King
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