Estimates of the Southern Ocean general circulation improved by animal-borne instruments

Fabien Roquet; Carl Wunsch; Gael Forget; Patrick Heimbach; Christophe Guinet; Gilles Reverdin; Jean Benoit Charrassin; Frederic Bailleul; Daniel P. Costa; Luis A. Huckstadt; Kimberly T. Goetz; Kit M. Kovacs; Christian Lydersen; Martin Biuw; Ole A. Nøst; Horst Bornemann; Joachim Ploetz; Marthan N. Bester; Trevor McIntyre; Monica C. Muelbert; Mark A. Hindell; Clive R. McMahon; Guy Williams; Robert Harcourt; Iain C. Field; Leon Chafik; Keith W. Nicholls; Lars Boehme; Mike A. Fedak

doi:10.1002/2013GL058304

Estimates of the Southern Ocean general circulation improved by animal-borne instruments

Fabien Roquet^*, Carl Wunsch, Gael Forget, Patrick Heimbach, Christophe Guinet, Gilles Reverdin, Jean Benoit Charrassin, Frederic Bailleul, Daniel P. Costa, Luis A. Huckstadt, Kimberly T. Goetz, Kit M. Kovacs, Christian Lydersen, Martin Biuw, Ole A. Nøst, Horst Bornemann, Joachim Ploetz, Marthan N. Bester, Trevor McIntyre, Monica C. MuelbertMark A. Hindell, Clive R. McMahon, Guy Williams, Robert Harcourt, Iain C. Field, Leon Chafik, Keith W. Nicholls, Lars Boehme, Mike A. Fedak

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

118 Citations (Scopus)

Abstract

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. Key Points A quality-controlled collection of seal-derived hydrographic data is presented The global value of seal data is assessed using a state estimation technique Seal data improve ocean circulation estimates in sea ice-covered regions

Original language	English
Pages (from-to)	6176-6180
Number of pages	5
Journal	Geophysical Research Letters
Volume	40
Issue number	23
DOIs	https://doi.org/10.1002/2013GL058304
Publication status	Published - 16 Dec 2013

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Roquet, F., Wunsch, C., Forget, G., Heimbach, P., Guinet, C., Reverdin, G., Charrassin, J. B., Bailleul, F., Costa, D. P., Huckstadt, L. A., Goetz, K. T., Kovacs, K. M., Lydersen, C., Biuw, M., Nøst, O. A., Bornemann, H., Ploetz, J., Bester, M. N., McIntyre, T., ... Fedak, M. A. (2013). Estimates of the Southern Ocean general circulation improved by animal-borne instruments. Geophysical Research Letters, 40(23), 6176-6180. https://doi.org/10.1002/2013GL058304

@article{a00a7cb350a84d7dbb5ccc068d3b7bdf,

title = "Estimates of the Southern Ocean general circulation improved by animal-borne instruments",

abstract = "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. Key Points A quality-controlled collection of seal-derived hydrographic data is presented The global value of seal data is assessed using a state estimation technique Seal data improve ocean circulation estimates in sea ice-covered regions",

author = "Fabien Roquet and Carl Wunsch and Gael Forget and Patrick Heimbach and Christophe Guinet and Gilles Reverdin and Charrassin, {Jean Benoit} and Frederic Bailleul and Costa, {Daniel P.} and Huckstadt, {Luis A.} and Goetz, {Kimberly T.} and Kovacs, {Kit M.} and Christian Lydersen and Martin Biuw and N{\o}st, {Ole A.} and Horst Bornemann and Joachim Ploetz and Bester, {Marthan N.} and Trevor McIntyre and Muelbert, {Monica C.} and Hindell, {Mark A.} and McMahon, {Clive R.} and Guy Williams and Robert Harcourt and Field, {Iain C.} and Leon Chafik and Nicholls, {Keith W.} and Lars Boehme and Fedak, {Mike A.}",

year = "2013",

month = dec,

day = "16",

doi = "10.1002/2013GL058304",

language = "English",

volume = "40",

pages = "6176--6180",

journal = "Geophysical Research Letters",

issn = "0094-8276",

publisher = "American Geophysical Union",

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Roquet, F, Wunsch, C, Forget, G, Heimbach, P, Guinet, C, Reverdin, G, Charrassin, JB, Bailleul, F, Costa, DP, Huckstadt, LA, Goetz, KT, Kovacs, KM, Lydersen, C, Biuw, M, Nøst, OA, Bornemann, H, Ploetz, J, Bester, MN, McIntyre, T, Muelbert, MC, Hindell, MA, McMahon, CR, Williams, G, Harcourt, R, Field, IC, Chafik, L, Nicholls, KW, Boehme, L & Fedak, MA 2013, 'Estimates of the Southern Ocean general circulation improved by animal-borne instruments', Geophysical Research Letters, vol. 40, no. 23, pp. 6176-6180. https://doi.org/10.1002/2013GL058304

TY - JOUR

T1 - Estimates of the Southern Ocean general circulation improved by animal-borne instruments

AU - Roquet, Fabien

AU - Wunsch, Carl

AU - Forget, Gael

AU - Heimbach, Patrick

AU - Guinet, Christophe

AU - Reverdin, Gilles

AU - Charrassin, Jean Benoit

AU - Bailleul, Frederic

AU - Costa, Daniel P.

AU - Huckstadt, Luis A.

AU - Goetz, Kimberly T.

AU - Kovacs, Kit M.

AU - Lydersen, Christian

AU - Biuw, Martin

AU - Nøst, Ole A.

AU - Bornemann, Horst

AU - Ploetz, Joachim

AU - Bester, Marthan N.

AU - McIntyre, Trevor

AU - Muelbert, Monica C.

AU - Hindell, Mark A.

AU - McMahon, Clive R.

AU - Williams, Guy

AU - Harcourt, Robert

AU - Field, Iain C.

AU - Chafik, Leon

AU - Nicholls, Keith W.

AU - Boehme, Lars

AU - Fedak, Mike A.

PY - 2013/12/16

Y1 - 2013/12/16

N2 - 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. Key Points A quality-controlled collection of seal-derived hydrographic data is presented The global value of seal data is assessed using a state estimation technique Seal data improve ocean circulation estimates in sea ice-covered regions

AB - 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. Key Points A quality-controlled collection of seal-derived hydrographic data is presented The global value of seal data is assessed using a state estimation technique Seal data improve ocean circulation estimates in sea ice-covered regions

UR - http://www.scopus.com/inward/record.url?scp=84888793101&partnerID=8YFLogxK

U2 - 10.1002/2013GL058304

DO - 10.1002/2013GL058304

M3 - Article

AN - SCOPUS:84888793101

SN - 0094-8276

VL - 40

SP - 6176

EP - 6180

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 23

ER -

Estimates of the Southern Ocean general circulation improved by animal-borne instruments

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