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

F Roquet; C Wunsch; G Forget; P Heimbach; C Guinet; G Reverdin; J-B  Charrassin; F Bailleul; D P Costa; L A Huckstadt; K T Goetz; K M Kovacs; C Lydersen; M Biuw; O A  Nøst; H Bornemann; J Ploetz; M N Bester; T McIntyre; M C Muelbert; M Hindell; C R McMahon; G Williams; R Harcourt; I Field; L Chafik; K W  Nicholls; Lars Boehme; Mike Fedak

doi:10.1002/2013GL058304

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

F Roquet, C Wunsch, G Forget, P Heimbach, C Guinet, G Reverdin, J-B Charrassin, F Bailleul, D P Costa, L A Huckstadt, K T Goetz, K M Kovacs, C Lydersen, M Biuw, O A Nøst, H Bornemann, J Ploetz, M N Bester, T McIntyre, M C MuelbertM Hindell, C R McMahon, G Williams, R Harcourt, I Field, L Chafik, K W Nicholls, Lars Boehme, Mike Fedak

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Abstract

Over the last decade, several hundred seals have been equipped with conductivity-temperature-depth (CTD) 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.

Original language	English
Pages (from-to)	1-5
Journal	Geophysical Research Letters
Volume	40
Early online date	3 Dec 2013
DOIs	https://doi.org/10.1002/2013GL058304
Publication status	Published - Dec 2013

Keywords

Southern Ocean
Animal-borne instruments
State estimation
Hydrography

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/2013GL058304

Roquet-grl51147SouthernOcean
© 2013 The Authors. Geophysical Research Letters published by Wiley on behalf of the American Geophysical Union. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
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Cite this

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. (2013). Estimates of the Southern Ocean general circulation improved by animal-borne instruments. Geophysical Research Letters, 40, 1-5. https://doi.org/10.1002/2013GL058304

@article{aad7ec568e494378b7cb5556a20817ee,

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 (CTD) 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.",

keywords = "Southern Ocean, Animal-borne instruments, State estimation, Hydrography",

author = "F Roquet and C Wunsch and G Forget and P Heimbach and C Guinet and G Reverdin and J-B Charrassin and F Bailleul and Costa, {D P} and Huckstadt, {L A} and Goetz, {K T} and Kovacs, {K M} and C Lydersen and M Biuw and N{\o}st, {O A} and H Bornemann and J Ploetz and Bester, {M N} and T McIntyre and Muelbert, {M C} and M Hindell and McMahon, {C R} and G Williams and R Harcourt and I Field and L Chafik and Nicholls, {K W} and Lars Boehme and Mike Fedak",

year = "2013",

month = dec,

doi = "10.1002/2013GL058304",

language = "English",

volume = "40",

pages = "1--5",

journal = "Geophysical Research Letters",

issn = "0094-8276",

publisher = "John Wiley & Sons, Ltd",

}

Roquet, F, Wunsch, C, Forget, G, Heimbach, P, Guinet, C, Reverdin, G, Charrassin, J-B, 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, M, McMahon, CR, Williams, G, Harcourt, R, Field, I, Chafik, L, Nicholls, KW, Boehme, L & Fedak, M 2013, 'Estimates of the Southern Ocean general circulation improved by animal-borne instruments', Geophysical Research Letters, vol. 40, pp. 1-5. https://doi.org/10.1002/2013GL058304

TY - JOUR

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

AU - Roquet, F

AU - Wunsch, C

AU - Forget, G

AU - Heimbach, P

AU - Guinet, C

AU - Reverdin, G

AU - Charrassin, J-B

AU - Bailleul, F

AU - Costa, D P

AU - Huckstadt, L A

AU - Goetz, K T

AU - Kovacs, K M

AU - Lydersen, C

AU - Biuw, M

AU - Nøst, O A

AU - Bornemann, H

AU - Ploetz, J

AU - Bester, M N

AU - McIntyre, T

AU - Muelbert, M C

AU - Hindell, M

AU - McMahon, C R

AU - Williams, G

AU - Harcourt, R

AU - Field, I

AU - Chafik, L

AU - Nicholls, K W

AU - Boehme, Lars

AU - Fedak, Mike

PY - 2013/12

Y1 - 2013/12

N2 - Over the last decade, several hundred seals have been equipped with conductivity-temperature-depth (CTD) 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.

AB - Over the last decade, several hundred seals have been equipped with conductivity-temperature-depth (CTD) 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.

KW - Southern Ocean

KW - Animal-borne instruments

KW - State estimation

KW - Hydrography

UR - http://onlinelibrary.wiley.com/doi/10.1002/2013GL058304/abstract

U2 - 10.1002/2013GL058304

DO - 10.1002/2013GL058304

M3 - Article

SN - 0094-8276

VL - 40

SP - 1

EP - 5

JO - Geophysical Research Letters

JF - Geophysical Research Letters

ER -

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

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Ocean2ice: Ocean2ice

Seals AFI: Ocean processes over the weddell sea shelf using seal tags

SAVEX South Atlantic Variability Experim: SAVEX - South Atlantic Variability Experiment

Cite this

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

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Projects

Ocean2ice: Ocean2ice

Seals AFI: Ocean processes over the weddell sea shelf using seal tags

SAVEX South Atlantic Variability Experim: SAVEX - South Atlantic Variability Experiment

Cite this