Passive tracers in a general circulation model of the Southern Ocean

International audience Passive tracers are used in an off-line version of the United Kingdom Fine Resolution Antarctic Model (FRAM) to highlight features of the circulation and provide information on the inter-ocean exchange of water masses. The use of passive tracers allows a picture to be built up...

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Bibliographic Details
Main Authors: Stevens, I. G., Stevens, D. P.
Other Authors: School of Mathematics, University of East Anglia Norwich (UEA)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 1999
Subjects:
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean
Atmosphere
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences
Antarctic
Southern Ocean
Antarc*
North Atlantic Deep Water
North Atlantic
Online Access:https://hal.science/hal-00316635
https://hal.science/hal-00316635/document
https://hal.science/hal-00316635/file/angeo-17-971-1999.pdf
Description
Summary:International audience Passive tracers are used in an off-line version of the United Kingdom Fine Resolution Antarctic Model (FRAM) to highlight features of the circulation and provide information on the inter-ocean exchange of water masses. The use of passive tracers allows a picture to be built up of the deep circulation which is not readily apparent from examination of the velocity or density fields. Comparison of observations with FRAM results gives good agreement for many features of the Southern Ocean circulation. Tracer distributions are consistent with the concept of a global "conveyor belt" with a return path via the Agulhas retroflection region for the replenishment of North Atlantic Deep Water.

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