On the effect of the missing Indonesian throughflow in the Fine Resolution Antarctic Model (FRAM)
Article
Article Title | On the effect of the missing Indonesian throughflow in the Fine Resolution Antarctic Model (FRAM) |
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ERA Journal ID | 1927 |
Article Category | Article |
Authors | Ribbe, Joachim (Author) and Tomczak, Matthias (Author) |
Journal Title | Journal of Physical Oceanography |
Journal Citation | 27, pp. 445-455 |
Number of Pages | 11 |
Year | 1997 |
Place of Publication | United States |
ISSN | 0022-3670 |
1520-0485 | |
Web Address (URL) | http://www.ametsoc.org/pubs/journals/jpo/ |
Abstract | [Abstract]: South of Tasmania, the Fine Resolution Antarctic Model (FRAM) shows a narrow band of westward flow in the surface layer. We argue that this is caused by the closure of the Indonesian passage in FRAM. This is supported by numerical experiments carried out by Hirst and Godfrey (1993) and by recent radiocarbon observations in the Great Australian Bight (Ribbe et al., 1996). The FRAM surface temperature and salinity distribution exhibits distinct anomalies in the southeast Indian Ocean, in good agreement with anomalies observed in the Hirst and Godfrey (1993) model. Indonesian Throughflow water advects heat into the Indian Ocean; its absence in FRAM results in a lack of thermal energy to warm the Indian Ocean in the model. The surface salinity anomaly is most likely caused by an over-estimated Ekman transport. The weakened heat and salinity transport in FRAM restricts surface convection in the mid-latitude region to approximately 350 m. |
Keywords | Indian Ocean, Pacific Ocean, Great Australian Bight, radiocarbon, ocean circulation, modelling |
ANZSRC Field of Research 2020 | 370803. Physical oceanography |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Flinders University |
The Flinders University of South Australia |
https://research.usq.edu.au/item/9xvz3/on-the-effect-of-the-missing-indonesian-throughflow-in-the-fine-resolution-antarctic-model-fram
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