An assessment of ten ocean reanalyses in the polar regions

Petteri Uotila, Hugues Goosse, Keith Haines, Matthieu Chevallier, Antoine Barthelemy, Clement Bricaud, Jim Carton, Neven Fuckar, Gilles Garric, Doroteaciro Iovino, Frank Kauker, Meri Korhonen, Vidar S. Lien, Marika Marnela, Francois Massonnet, Davi Mignac, K. Andrew Peterson, Remon Sadikni, Li Shi, Steffen TietscheTakahiro Toyoda, Jiping Xie, Zhaoru Zhang

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Global and regional ocean and sea ice reanalysis products (ORAs) are increasingly used in polar research, but their quality remains to be systematically assessed. To address this, the Polar ORA Intercomparison Project (Polar ORA-IP) has been established following on from the ORA-IP project. Several aspects of ten selected ORAs in the Arctic and Antarctic were addressed by concentrating on comparing their mean states in terms of snow, sea ice, ocean transports and hydrography. Most polar diagnostics were carried out for the first time in such an extensive set of ORAs. For the multi-ORA mean state, we found that deviations from observations were typically smaller than individual ORA anomalies, often attributed to offsetting biases of individual ORAs. The ORA ensemble mean therefore appears to be a useful product and while knowing its main deficiencies and recognising its restrictions, it can be used to gain useful information on the physical state of the polar marine environment.
Original languageEnglish
JournalClimate Dynamics
Volume52
Issue number3-4
Pages (from-to)1613–1650
Number of pages38
ISSN1432-0894
DOIs
Publication statusPublished - Feb 2019
MoE publication typeA1 Journal article-refereed

Fields of Science

  • 1171 Geosciences

Cite this

Uotila, P., Goosse, H., Haines, K., Chevallier, M., Barthelemy, A., Bricaud, C., ... Zhang, Z. (2019). An assessment of ten ocean reanalyses in the polar regions. Climate Dynamics, 52(3-4), 1613–1650. https://doi.org/10.1007/s00382-018-4242-z
Uotila, Petteri ; Goosse, Hugues ; Haines, Keith ; Chevallier, Matthieu ; Barthelemy, Antoine ; Bricaud, Clement ; Carton, Jim ; Fuckar, Neven ; Garric, Gilles ; Iovino, Doroteaciro ; Kauker, Frank ; Korhonen, Meri ; Lien, Vidar S. ; Marnela, Marika ; Massonnet, Francois ; Mignac, Davi ; Peterson, K. Andrew ; Sadikni, Remon ; Shi, Li ; Tietsche, Steffen ; Toyoda, Takahiro ; Xie, Jiping ; Zhang, Zhaoru. / An assessment of ten ocean reanalyses in the polar regions. In: Climate Dynamics. 2019 ; Vol. 52, No. 3-4. pp. 1613–1650.
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title = "An assessment of ten ocean reanalyses in the polar regions",
abstract = "Global and regional ocean and sea ice reanalysis products (ORAs) are increasingly used in polar research, but their quality remains to be systematically assessed. To address this, the Polar ORA Intercomparison Project (Polar ORA-IP) has been established following on from the ORA-IP project. Several aspects of ten selected ORAs in the Arctic and Antarctic were addressed by concentrating on comparing their mean states in terms of snow, sea ice, ocean transports and hydrography. Most polar diagnostics were carried out for the first time in such an extensive set of ORAs. For the multi-ORA mean state, we found that deviations from observations were typically smaller than individual ORA anomalies, often attributed to offsetting biases of individual ORAs. The ORA ensemble mean therefore appears to be a useful product and while knowing its main deficiencies and recognising its restrictions, it can be used to gain useful information on the physical state of the polar marine environment.",
keywords = "1171 Geosciences",
author = "Petteri Uotila and Hugues Goosse and Keith Haines and Matthieu Chevallier and Antoine Barthelemy and Clement Bricaud and Jim Carton and Neven Fuckar and Gilles Garric and Doroteaciro Iovino and Frank Kauker and Meri Korhonen and Lien, {Vidar S.} and Marika Marnela and Francois Massonnet and Davi Mignac and Peterson, {K. Andrew} and Remon Sadikni and Li Shi and Steffen Tietsche and Takahiro Toyoda and Jiping Xie and Zhaoru Zhang",
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Uotila, P, Goosse, H, Haines, K, Chevallier, M, Barthelemy, A, Bricaud, C, Carton, J, Fuckar, N, Garric, G, Iovino, D, Kauker, F, Korhonen, M, Lien, VS, Marnela, M, Massonnet, F, Mignac, D, Peterson, KA, Sadikni, R, Shi, L, Tietsche, S, Toyoda, T, Xie, J & Zhang, Z 2019, 'An assessment of ten ocean reanalyses in the polar regions', Climate Dynamics, vol. 52, no. 3-4, pp. 1613–1650. https://doi.org/10.1007/s00382-018-4242-z

An assessment of ten ocean reanalyses in the polar regions. / Uotila, Petteri; Goosse, Hugues; Haines, Keith; Chevallier, Matthieu; Barthelemy, Antoine; Bricaud, Clement; Carton, Jim; Fuckar, Neven; Garric, Gilles; Iovino, Doroteaciro; Kauker, Frank; Korhonen, Meri; Lien, Vidar S.; Marnela, Marika; Massonnet, Francois; Mignac, Davi; Peterson, K. Andrew; Sadikni, Remon; Shi, Li; Tietsche, Steffen; Toyoda, Takahiro; Xie, Jiping; Zhang, Zhaoru.

In: Climate Dynamics, Vol. 52, No. 3-4, 02.2019, p. 1613–1650.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - An assessment of ten ocean reanalyses in the polar regions

AU - Uotila, Petteri

AU - Goosse, Hugues

AU - Haines, Keith

AU - Chevallier, Matthieu

AU - Barthelemy, Antoine

AU - Bricaud, Clement

AU - Carton, Jim

AU - Fuckar, Neven

AU - Garric, Gilles

AU - Iovino, Doroteaciro

AU - Kauker, Frank

AU - Korhonen, Meri

AU - Lien, Vidar S.

AU - Marnela, Marika

AU - Massonnet, Francois

AU - Mignac, Davi

AU - Peterson, K. Andrew

AU - Sadikni, Remon

AU - Shi, Li

AU - Tietsche, Steffen

AU - Toyoda, Takahiro

AU - Xie, Jiping

AU - Zhang, Zhaoru

PY - 2019/2

Y1 - 2019/2

N2 - Global and regional ocean and sea ice reanalysis products (ORAs) are increasingly used in polar research, but their quality remains to be systematically assessed. To address this, the Polar ORA Intercomparison Project (Polar ORA-IP) has been established following on from the ORA-IP project. Several aspects of ten selected ORAs in the Arctic and Antarctic were addressed by concentrating on comparing their mean states in terms of snow, sea ice, ocean transports and hydrography. Most polar diagnostics were carried out for the first time in such an extensive set of ORAs. For the multi-ORA mean state, we found that deviations from observations were typically smaller than individual ORA anomalies, often attributed to offsetting biases of individual ORAs. The ORA ensemble mean therefore appears to be a useful product and while knowing its main deficiencies and recognising its restrictions, it can be used to gain useful information on the physical state of the polar marine environment.

AB - Global and regional ocean and sea ice reanalysis products (ORAs) are increasingly used in polar research, but their quality remains to be systematically assessed. To address this, the Polar ORA Intercomparison Project (Polar ORA-IP) has been established following on from the ORA-IP project. Several aspects of ten selected ORAs in the Arctic and Antarctic were addressed by concentrating on comparing their mean states in terms of snow, sea ice, ocean transports and hydrography. Most polar diagnostics were carried out for the first time in such an extensive set of ORAs. For the multi-ORA mean state, we found that deviations from observations were typically smaller than individual ORA anomalies, often attributed to offsetting biases of individual ORAs. The ORA ensemble mean therefore appears to be a useful product and while knowing its main deficiencies and recognising its restrictions, it can be used to gain useful information on the physical state of the polar marine environment.

KW - 1171 Geosciences

U2 - 10.1007/s00382-018-4242-z

DO - 10.1007/s00382-018-4242-z

M3 - Article

VL - 52

SP - 1613

EP - 1650

JO - Climate Dynamics

JF - Climate Dynamics

SN - 1432-0894

IS - 3-4

ER -

Uotila P, Goosse H, Haines K, Chevallier M, Barthelemy A, Bricaud C et al. An assessment of ten ocean reanalyses in the polar regions. Climate Dynamics. 2019 Feb;52(3-4):1613–1650. https://doi.org/10.1007/s00382-018-4242-z