Estimates of the Southern Ocean general circulation improved by animal‐borne instruments
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- Fabien Roquet
- Department of Meteorology Stockholm University Stockholm Sweden
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- Carl Wunsch
- Department of Earth and Planetary Sciences Harvard University Cambridge Massachusetts USA
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- Gael Forget
- Department of Earth, Atmospheric and Planetary Sciences Massachusetts Institute of Technology Cambridge Massachusetts USA
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- Patrick Heimbach
- Department of Earth, Atmospheric and Planetary Sciences Massachusetts Institute of Technology Cambridge Massachusetts USA
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- Christophe Guinet
- Centre d'Etudes Biologiques de Chizé, Centre National de la Recherche Scientifique Villiers en Bois France
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- Gilles Reverdin
- Laboratoire d'Océanographie et du Climat: Expérimentation et Approches Numériques Paris France
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- Jean‐Benoit Charrassin
- Laboratoire d'Océanographie et du Climat: Expérimentation et Approches Numériques Paris France
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- Frederic Bailleul
- Centre d'Etudes Biologiques de Chizé, Centre National de la Recherche Scientifique Villiers en Bois France
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- Daniel P. Costa
- Department of Ecology and Evolutionary Biology University of California Santa Cruz California USA
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- Luis A. Huckstadt
- Department of Ecology and Evolutionary Biology University of California Santa Cruz California USA
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- Kimberly T. Goetz
- Department of Ecology and Evolutionary Biology University of California Santa Cruz California USA
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- Kit M. Kovacs
- Norwegian Polar Institute Tromsø Norway
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- Christian Lydersen
- Norwegian Polar Institute Tromsø Norway
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- Martin Biuw
- Norwegian Polar Institute Tromsø Norway
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- Ole A. Nøst
- Norwegian Polar Institute Tromsø Norway
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- Horst Bornemann
- Alfred‐Wegener‐Institut, Helmholtz Zentrum für Polar‐ und Meeresforschung Bremerhaven Germany
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- Joachim Ploetz
- Alfred‐Wegener‐Institut, Helmholtz Zentrum für Polar‐ und Meeresforschung Bremerhaven Germany
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- Marthan N. Bester
- Mammal Research Institute, Department of Zoology and Entomology University of Pretoria Pretoria South Africa
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- Trevor McIntyre
- Mammal Research Institute, Department of Zoology and Entomology University of Pretoria Pretoria South Africa
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- Monica C. Muelbert
- Instituto de Oceanografia Universidade Federal do Rio Grande Porto Alegre Brazil
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- Mark A. Hindell
- Institute for Marine and Antarctic Studies University of Tasmania Hobart Tasmania Australia
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- Clive R. McMahon
- Institute for Marine and Antarctic Studies University of Tasmania Hobart Tasmania Australia
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- Guy Williams
- Antarctic Climate & Ecosystems Cooperative Research University of Tasmania Hobart Tasmania Australia
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- Robert Harcourt
- Marine Predator Research Group, Department of Biological Sciences Macquarie University Sydney New South Wales Australia
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- Iain C. Field
- Marine Predator Research Group, Department of Biological Sciences Macquarie University Sydney New South Wales Australia
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- Leon Chafik
- Department of Meteorology Stockholm University Stockholm Sweden
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- Keith W. Nicholls
- British Antarctic Survey Natural Environment Research Council Cambridge UK
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- Lars Boehme
- Sea Mammal Research Unit, Scottish Oceans Institute University of St Andrews St Andrews UK
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- Mike A. Fedak
- Sea Mammal Research Unit, Scottish Oceans Institute University of St Andrews St Andrews UK
説明
<jats:title>Abstract</jats:title><jats:p>Over the last decade, several hundred seals have been equipped with conductivity‐temperature‐depth sensors in the Southern Ocean for both biological and physical oceanographic studies. A calibrated collection of seal‐derived hydrographic data is now available, consisting of more than 165,000 profiles. The value of these hydrographic data within the existing Southern Ocean observing system is demonstrated herein by conducting two state estimation experiments, differing only in the use or not of seal data to constrain the system. Including seal‐derived data substantially modifies the estimated surface mixed‐layer properties and circulation patterns within and south of the Antarctic Circumpolar Current. Agreement with independent satellite observations of sea ice concentration is improved, especially along the East Antarctic shelf. Instrumented animals efficiently reduce a critical observational gap, and their contribution to monitoring polar climate variability will continue to grow as data accuracy and spatial coverage increase.</jats:p>
収録刊行物
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- Geophysical Research Letters
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Geophysical Research Letters 40 (23), 6176-6180, 2013-12-03
American Geophysical Union (AGU)