G
Guillaume Vernieres
Researcher at Goddard Space Flight Center
Publications - 19
Citations - 741
Guillaume Vernieres is an academic researcher from Goddard Space Flight Center. The author has contributed to research in topics: Data assimilation & Sea ice. The author has an hindex of 13, co-authored 18 publications receiving 625 citations. Previous affiliations of Guillaume Vernieres include Science Applications International Corporation.
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The Ocean Reanalyses Intercomparison Project (ORA-IP)
Magdalena Balmaseda,Fabrice Hernandez,Andrea Storto,Matthew D. Palmer,Oscar Alves,Li Shi,Gregory C. Smith,Takahiro Toyoda,Maria Valdivieso,Bernard Barnier,David Behringer,Timothy P. Boyer,You-Soon Chang,G. Chepurin,Nicolas Ferry,Gael Forget,Yosuke Fujii,Simon A. Good,Stephanie Guinehut,Keith Haines,Yoichi Ishikawa,Sarah Keeley,Armin Köhl,Tong Lee,Matthew Martin,Simona Masina,Shuhei Masuda,Benoit Meyssignac,Kristian Mogensen,Laurent Parent,K. A. Peterson,Yongming Tang,Yonghong Yin,Guillaume Vernieres,Xiaochun Wang,Jennifer Waters,Robin Wedd,Ou Wang,Yan Xue,Matthieu Chevallier,Jean-François Lemieux,Frédéric Dupont,Tsurane Kuragano,Masafumi Kamachi,Toshiyuki Awaji,A. Caltabiano,Kirsten Wilmer-Becker,Fabienne Gaillard +47 more
TL;DR: In this article, a multi-reanalysis ensemble is used to estimate the signal-to-noise ratio (SNR) of the ocean state and to estimate uncertainty levels.
Journal ArticleDOI
Intercomparison of the Arctic sea ice cover in global ocean–sea ice reanalyses from the ORA-IP project
Matthieu Chevallier,Gregory C. Smith,Frédéric Dupont,Jean-François Lemieux,Gael Forget,Yosuke Fujii,Fabrice Hernandez,Rym Msadek,K. Andrew Peterson,Andrea Storto,Takahiro Toyoda,Maria Valdivieso,Guillaume Vernieres,Hao Zuo,Magdalena Balmaseda,You-Soon Chang,Nicolas Ferry,Gilles Garric,Keith Haines,Sarah Keeley,Robin Kovach,Tsurane Kuragano,Simona Masina,Yongming Tang,Yongming Tang,Hiroyuki Tsujino,Xiaochun Wang +26 more
TL;DR: The results from the Ocean ReAnalyses Intercomparison Project (ORA-IP) are presented in this paper, with a focus on Arctic sea ice fields reconstructed by state-of-the-art global ocean reanalyses.
Journal ArticleDOI
Steric sea level variability (1993–2010) in an ensemble of ocean reanalyses and objective analyses
Andrea Storto,Simona Masina,Magdalena Balmaseda,Stephanie Guinehut,Yan Xue,Tanguy Szekely,Ichiro Fukumori,Gael Forget,You-Soon Chang,You-Soon Chang,Simon A. Good,Armin Köhl,Guillaume Vernieres,Nicolas Ferry,K. Andrew Peterson,David Behringer,Masayoshi Ishii,Shuhei Masuda,Yosuke Fujii,Takahiro Toyoda,Yonghong Yin,Maria Valdivieso,Bernard Barnier,Timothy P. Boyer,Tony E. Lee,Jérôme Gourrion,Ou Wang,Ou Wang,Patrick Heimback,Anthony Rosati,Robin Kovach,Fabrice Hernandez,Matthew Martin,Masafumi Kamachi,Tsurane Kuragano,Kristian Mogensen,Oscar Alves,Keith Haines,Xiaochun Wang +38 more
TL;DR: In this paper, the global and regional steric sea level changes are estimated and compared from an ensemble of 16 ocean reanalyses and 4 objective analyses, and the ensemble mean exhibits a significant high correlation at both a global and a regional scale.
Journal ArticleDOI
Intercomparison and validation of the mixed layer depth fields of global ocean syntheses
Takahiro Toyoda,Yosuke Fujii,Tsurane Kuragano,Masafumi Kamachi,Yoichi Ishikawa,Shuhei Masuda,Kanako Sato,Toshiyuki Awaji,Toshiyuki Awaji,Fabrice Hernandez,Nicolas Ferry,Stephanie Guinehut,Matthew Martin,K. Andrew Peterson,Simon A. Good,Maria Valdivieso,Keith Haines,Andrea Storto,Simona Masina,Simona Masina,Armin Köhl,Hao Zuo,Magdalena Balmaseda,Yonghong Yin,Li Shi,Oscar Alves,Gregory C. Smith,You-Soon Chang,You-Soon Chang,Guillaume Vernieres,Xiaochun Wang,Gael Forget,Patrick Heimbach,Ou Wang,Ichiro Fukumori,Tong Lee +35 more
TL;DR: In this paper, a comparison of the global ocean surface mixed layer depth (MLD) fields estimated from a suite of major ocean syntheses is conducted, and it is shown that the bias in the ensemble mean field of the reanalyses is smaller than in the observation-only analyses.
The GEOS-iODAS: Description and Evaluation
TL;DR: The GMAO's Goddard Earth Observing System sea ice and ocean data assimilation system (GEOS iODAS) as mentioned in this paper assimilates a wide range of observations into the ocean and sea ice components: in-situ temperature and salinity profiles, sea level anomalies from satellite altimetry, analyzed SST, and seaice concentration.