Publications

  • [DOI] Martineau, Patrick, Hisashi Nakamura, Yu Kosaka, and Ayako Yamamoto. 2020. Importance of a vertically tilting structure for energizing the North Atlantic Oscillation. Sci. rep. 10 (1):12671.
    [Bibtex]
    @article{Martineau,
    author = {Martineau, Patrick and Nakamura, Hisashi and Kosaka, Yu and Yamamoto, Ayako},
    doi = {10.1038/s41598-020-69551-5},
    file = {:C$\backslash$:/Users/patri/OneDrive/Documents/Mendeley{\_}PDFs/Martineau et al. - 2020 - Importance of a vertically tilting structure for energizing the North Atlantic Oscillation.pdf:pdf},
    issn = {2045-2322},
    journal = {Sci. Rep.},
    month = {dec},
    number = {1},
    pages = {12671},
    title = {{Importance of a vertically tilting structure for energizing the North Atlantic Oscillation}},
    volume = {10},
    year = {2020}
    }
  • [DOI] Hwang, Jaeyoung, Patrick Martineau, Seok-Woo Son, Takafumi Miyasaka, and Hisashi Nakamura. 2020. The Role of Transient Eddies in North Pacific Blocking Formation and Its Seasonality. J. atmos. sci. 77 (7):2453–2470.
    [Bibtex]
    @article{Hwang2020a,
    abstract = {The mechanism of North Pacific (NP) blocking formation is investigated by conducting a reanalysis-based budget analysis of the quasigeostrophic geopotential tendency equation. It is confirmed that the amplification of NP blocking anomalies primarily results from vorticity fluxes with a minor contribution of heat fluxes. In winter, the cross-frequency vorticity fluxes, resulting from interactions between high-frequency eddies and the slowly varying background flow, dominate the blocking formation. The cross-frequency vorticity fluxes, however, become substantially weaker and comparable to the low-frequency vorticity fluxes in summer. This seasonality indicates that the mechanism of NP blocking formation varies with seasons due to the different background flow. It is further found that NP blocking formation is not sensitive to the region of formation (i.e., western vs eastern NP) nor to the type of wave breaking (i.e., cyclonic vs anticyclonic wave breaking).},
    author = {Hwang, Jaeyoung and Martineau, Patrick and Son, Seok-Woo and Miyasaka, Takafumi and Nakamura, Hisashi},
    doi = {10.1175/JAS-D-20-0011.1},
    file = {:C$\backslash$:/Users/patri/OneDrive/Documents/Mendeley{\_}PDFs/Hwang et al. - 2020 - The Role of Transient Eddies in North Pacific Blocking Formation and Its Seasonality.pdf:pdf},
    issn = {0022-4928},
    journal = {J. Atmos. Sci.},
    month = {jul},
    number = {7},
    pages = {2453--2470},
    title = {{The Role of Transient Eddies in North Pacific Blocking Formation and Its Seasonality}},
    volume = {77},
    year = {2020}
    }
  • [DOI] Martineau, Patrick, Hisashi Nakamura, Yu Kosaka, Bunmei Taguchi, and Masato Mori. 2020. Modulations of North American and European Weather Variability and Extremes by Interdecadal Variability of the Atmospheric Circulation over the North Atlantic Sector. J. clim. 33 (18):8125–8146.
    [Bibtex]
    @article{Martineau2020,
    abstract = {The dominant mode of wintertime interdecadal covariability between subseasonal surface air temperature (SAT) variability and midtropospheric circulation over the North Atlantic sector is identified through maximum covariance analysis applied to century-long reanalysis data. This mode highlights a tendency for subseasonal temperature variability over Europe and eastern North America to be enhanced during decades when the negative phase of the North Atlantic Oscillation (NAO) prevails. This interdecadal NAO is characterized by a stationary Rossby wave train that originates from the subtropical Atlantic, propagates northward into the subpolar Atlantic, and finally refracts toward Europe and the Middle East. A decadal increase in precipitation in the subtropics under the enhanced supply of heat and moisture from the Gulf Stream and its surroundings appears to act as a source for this wave train. The influence of the interdecadal NAO on subseasonal SAT variability is explained primarily by the modulated efficiency of baroclinic conversion of available potential energy from the background atmospheric flow to subseasonal eddies. The combination of enhanced subseasonal variability and low winter-mean temperature anomalies associated with the negative phase of the interdecadal NAO increases the frequency of cold extremes affecting Europe and the eastern United States.},
    author = {Martineau, Patrick and Nakamura, Hisashi and Kosaka, Yu and Taguchi, Bunmei and Mori, Masato},
    doi = {10.1175/jcli-d-19-0977.1},
    file = {:C$\backslash$:/Users/patri/OneDrive/Documents/Mendeley{\_}PDFs/Martineau et al. - 2020 - Modulations of North American and European Weather Variability and Extremes by Interdecadal Variability of the.pdf:pdf},
    issn = {0894-8755},
    journal = {J. Clim.},
    number = {18},
    pages = {8125--8146},
    title = {{Modulations of North American and European Weather Variability and Extremes by Interdecadal Variability of the Atmospheric Circulation over the North Atlantic Sector}},
    volume = {33},
    year = {2020}
    }
  • [DOI] Martineau, Patrick, Hisashi Nakamura, and Yu Kosaka. 2020. Influence of ENSO on North American subseasonal surface air temperature variability. Weather clim. dyn. Discussion Paper (submitted).
    [Bibtex]
    @article{Martineau2020a,
    author = {Martineau, Patrick and Nakamura, Hisashi and Kosaka, Yu},
    doi = {10.5194/wcd-2020-22},
    journal = {Weather Clim. Dyn.},
    pages = {Discussion Paper (submitted)},
    title = {{Influence of ENSO on North American subseasonal surface air temperature variability}},
    year = {2020}
    }
  • [DOI] Yamamoto, Ayako, Masami Nonaka, Patrick Martineau, Akira Yamazaki, Young-Oh Kwon, Hisashi Nakamura, and Bunmei Taguchi. 2020. Oceanic origins for wintertime Euro-Atlantic blocking. Weather clim. dyn. Discussion paper (submitted).
    [Bibtex]
    @article{Yamamoto2020,
    author = {Yamamoto, Ayako and Nonaka, Masami and Martineau, Patrick and Yamazaki, Akira and Kwon, Young-Oh and Nakamura, Hisashi and Taguchi, Bunmei},
    doi = {10.5194/wcd-2020-39},
    journal = {Weather Clim. Dyn.},
    pages = {Discussion paper (submitted)},
    title = {{Oceanic origins for wintertime Euro-Atlantic blocking}},
    url = {https://doi.org/10.5194/wcd-2020-39},
    year = {2020}
    }
  • [DOI] Gerber, Edwin P. and Patrick Martineau. 2018. Quantifying the variability of the annular modes: reanalysis uncertainty vs. sampling uncertainty. Atmos. chem. phys. 18 (23):17099–17117.
    [Bibtex]
    @article{Gerber2018,
    author = {Gerber, Edwin P. and Martineau, Patrick},
    doi = {10.5194/acp-18-17099-2018},
    file = {:C$\backslash$:/Users/patri/OneDrive/Documents/Mendeley{\_}PDFs/Gerber, Martineau - 2018 - Quantifying the variability of the annular modes reanalysis uncertainty vs. sampling uncertainty.pdf:pdf},
    issn = {1680-7324},
    journal = {Atmos. Chem. Phys.},
    month = {dec},
    number = {23},
    pages = {17099--17117},
    title = {{Quantifying the variability of the annular modes: reanalysis uncertainty vs. sampling uncertainty}},
    volume = {18},
    year = {2018}
    }
  • [DOI] Martineau, Patrick, Jonathon S. Wright, Nuanliang Zhu, and Masatomo Fujiwara. 2018. Zonal-mean data set of global atmospheric reanalyses on pressure levels. Earth syst. sci. data 10 (4):1925–1941.
    [Bibtex]
    @article{Martineau2018c,
    abstract = {Abstract. This data set, which is prepared for the Stratosphere–troposphere Processes And their Role in Climate (SPARC) Reanalysis Intercomparison Project (S-RIP), provides several zonal-mean diagnostics computed from reanalysis data on pressure levels. Diagnostics are currently provided for a variety of reanalyses, including ERA-40, ERA-Interim, ERA-20C, NCEP–NCAR, NCEP–DOE, CFSR, 20CR v2 and v2c, JRA-25, JRA-55, JRA-55C, JRA-55AMIP, MERRA, and MERRA-2. The data set will be expanded to include additional reanalyses as they become available. Basic dynamical variables (such as temperature, geopotential height, and three-dimensional winds) are provided in addition to a complete set of terms from the Eulerian-mean and transformed-Eulerian-mean momentum equations. Total diabatic heating and its long-wave and shortwave components are included as availability permits, along with heating rates diagnosed from the basic dynamical variables using the zonal-mean thermodynamic equation. Two versions of the data set are provided, one that uses horizontal and vertical grids provided by the various reanalysis centers and another that uses a common grid (CG) to facilitate comparison among data sets. For the common grid, all diagnostics are interpolated horizontally onto a regular 2.5° × 2.5° grid for a subset of pressure levels that are common among all included reanalyses. The dynamical (Martineau, 2017, 10.5285/b241a7f536a244749662360bd7839312) and diabatic (Wright, 2017, 10.5285/70146c789eda4296a3c3ab6706931d56) variables are archived and maintained by the Centre for Environmental Data Analysis (CEDA).},
    author = {Martineau, Patrick and Wright, Jonathon S. and Zhu, Nuanliang and Fujiwara, Masatomo},
    doi = {10.5194/essd-10-1925-2018},
    file = {:C$\backslash$:/Users/patri/OneDrive/Documents/Mendeley{\_}PDFs/Martineau et al. - 2018 - Zonal-mean data set of global atmospheric reanalyses on pressure levels.pdf:pdf},
    issn = {1866-3516},
    journal = {Earth Syst. Sci. Data},
    month = {oct},
    number = {4},
    pages = {1925--1941},
    title = {{Zonal-mean data set of global atmospheric reanalyses on pressure levels}},
    volume = {10},
    year = {2018}
    }
  • [DOI] Martineau, Patrick, Seok-Woo Son, Masakazu Taguchi, and Amy H. Butler. 2018. A comparison of the momentum budget in reanalysis datasets during sudden stratospheric warming events. Atmos. chem. phys. 18 (10):7169–7187.
    [Bibtex]
    @article{Martineau2018b,
    abstract = {The agreement between reanalysis datasets, in terms of the zonal-mean momentum budget, is evaluated during sudden stratospheric warming (SSW) events. It is revealed that there is a good agreement among datasets in the lower stratosphere and troposphere concerning zonal-mean zonal wind, but less so in the upper stratosphere. Forcing terms of the momentum equation are also relatively similar in the lower atmosphere, but their uncertainties are typically larger than uncertainties of the zonal-wind tendency. Similar to zonal-wind tendency, the agreement among forcing terms is degraded in the upper stratosphere. Discrepancies among reanalyses increase during the onset of SSW events, a period characterized by unusually large fluxes of planetary-scale waves from the troposphere to the stratosphere, and decrease substantially after the onset. While the largest uncertainties in the resolved terms of the momentum budget are found in the Coriolis torque, momentum flux convergence also presents a non-negligible spread among the reanalyses. Such a spread is reduced in the latest reanalysis products, decreasing the uncertainty of the momentum budget. It is also found that the uncertainties in the Coriolis torque depend on the strength of SSW events: the SSW events that exhibit the most intense deceleration of zonal-mean zonal wind are subject to larger discrepancies among reanalyses. These uncertainties in stratospheric circulation, however, are not communicated to the troposphere.},
    author = {Martineau, Patrick and Son, Seok-Woo and Taguchi, Masakazu and Butler, Amy H.},
    doi = {10.5194/acp-18-7169-2018},
    file = {:C$\backslash$:/Users/patri/OneDrive/Documents/Mendeley{\_}PDFs/Martineau et al. - 2018 - A comparison of the momentum budget in reanalysis datasets during sudden stratospheric warming events.pdf:pdf},
    issn = {1680-7324},
    journal = {Atmos. Chem. Phys.},
    month = {may},
    number = {10},
    pages = {7169--7187},
    title = {{A comparison of the momentum budget in reanalysis datasets during sudden stratospheric warming events}},
    volume = {18},
    year = {2018}
    }
  • [DOI] Martineau, Patrick, Gang Chen, Seok-Woo Son, and Joowan Kim. 2018. Lower-Stratospheric Control of the Frequency of Sudden Stratospheric Warming Events. J. geophys. res. atmos. 123 (6):3051–3070.
    [Bibtex]
    @article{Martineau2018a,
    author = {Martineau, Patrick and Chen, Gang and Son, Seok-Woo and Kim, Joowan},
    doi = {10.1002/2017JD027648},
    file = {:C$\backslash$:/Users/patri/OneDrive/Documents/Mendeley{\_}PDFs/Martineau et al. - 2018 - Lower-Stratospheric Control of the Frequency of Sudden Stratospheric Warming Events.pdf:pdf},
    issn = {2169897X},
    journal = {J. Geophys. Res. Atmos.},
    month = {mar},
    number = {6},
    pages = {3051--3070},
    title = {{Lower-Stratospheric Control of the Frequency of Sudden Stratospheric Warming Events}},
    volume = {123},
    year = {2018}
    }
  • [DOI] Martineau, Patrick, Gang Chen, and Alex D. Burrows. 2017. Wave Events: Climatology, Trends, and Relationship to Northern Hemisphere Winter Blocking and Weather Extremes. J. clim. 30 (15):5675–5697.
    [Bibtex]
    @article{Martineau2017,
    author = {Martineau, Patrick and Chen, Gang and Burrows, Alex D.},
    doi = {10.1175/JCLI-D-16-0692.1},
    file = {:C$\backslash$:/Users/patri/OneDrive/Documents/Mendeley{\_}PDFs/Martineau, Chen, Burrows - 2017 - Wave Events Climatology, Trends, and Relationship to Northern Hemisphere Winter Blocking and Weather E.pdf:pdf},
    issn = {0894-8755},
    journal = {J. Clim.},
    month = {aug},
    number = {15},
    pages = {5675--5697},
    title = {{Wave Events: Climatology, Trends, and Relationship to Northern Hemisphere Winter Blocking and Weather Extremes}},
    volume = {30},
    year = {2017}
    }
  • [DOI] Fujiwara, Masatomo, Jonathon S. Wright, Gloria L. Manney, Lesley J. Gray, James Anstey, Thomas Birner, Sean Davis, Edwin P. Gerber, Lynn V. Harvey, Michaela I. Hegglin, Cameron R. Homeyer, John A. Knox, Kirstin Krüger, Alyn Lambert, Craig S. Long, Patrick Martineau, Andrea Molod, Beatriz M. Monge-Sanz, Michelle L. Santee, Susann Tegtmeier, Simon Chabrillat, David G. H. Tan, David R. Jackson, Saroja Polavarapu, Gilbert P. Compo, Rossana Dragani, Wesley Ebisuzaki, Yayoi Harada, Chiaki Kobayashi, Will McCarty, Kazutoshi Onogi, Steven Pawson, Adrian Simmons, Krzysztof Wargan, Jeffrey S. Whitaker, and Cheng-Zhi Zou. 2017. Introduction to the SPARC Reanalysis Intercomparison Project (S-RIP) and overview of the reanalysis systems. Atmos. chem. phys. 17 (2):1417–1452.
    [Bibtex]
    @article{Fujiwara2017,
    abstract = {The climate research community uses atmospheric reanalysis data sets to understand a wide range of processes and variability in the atmosphere, yet different reanalyses may give very different results for the same diagnostics. The Stratosphere{\&}ndash;troposphere Processes And their Role in Climate (SPARC) Reanalysis Intercomparison Project (S-RIP) is a coordinated activity to compare reanalysis data sets using a variety of key diagnostics. The objectives of this project are to identify differences among reanalyses and understand their underlying causes, to provide guidance on appropriate usage of various reanalysis products in scientific studies, particularly those of relevance to SPARC, and to contribute to future improvements in the reanalysis products by establishing collaborative links between reanalysis centres and data users. The project focuses predominantly on differences among reanalyses, although studies that include operational analyses and studies comparing reanalyses with observations are also included when appropriate. The emphasis is on diagnostics of the upper troposphere, stratosphere, and lower mesosphere. This paper summarizes the motivation and goals of the S-RIP activity and extensively reviews key technical aspects of the reanalysis data sets that are the focus of this activity. The special issue The SPARC Reanalysis Intercomparison Project (S-RIP) in this journal serves to collect research with relevance to the S-RIP in preparation for the publication of the planned two (interim and full) S-RIP reports.},
    author = {Fujiwara, Masatomo and Wright, Jonathon S. and Manney, Gloria L. and Gray, Lesley J. and Anstey, James and Birner, Thomas and Davis, Sean and Gerber, Edwin P. and Harvey, V. Lynn and Hegglin, Michaela I. and Homeyer, Cameron R. and Knox, John A. and Kr{\"{u}}ger, Kirstin and Lambert, Alyn and Long, Craig S. and Martineau, Patrick and Molod, Andrea and Monge-Sanz, Beatriz M. and Santee, Michelle L. and Tegtmeier, Susann and Chabrillat, Simon and Tan, David G. H. and Jackson, David R. and Polavarapu, Saroja and Compo, Gilbert P. and Dragani, Rossana and Ebisuzaki, Wesley and Harada, Yayoi and Kobayashi, Chiaki and McCarty, Will and Onogi, Kazutoshi and Pawson, Steven and Simmons, Adrian and Wargan, Krzysztof and Whitaker, Jeffrey S. and Zou, Cheng-Zhi},
    doi = {10.5194/acp-17-1417-2017},
    file = {:C$\backslash$:/Users/patri/OneDrive/Documents/Mendeley{\_}PDFs/Fujiwara et al. - 2017 - Introduction to the SPARC Reanalysis Intercomparison Project (S-RIP) and overview of the reanalysis systems.pdf:pdf},
    issn = {1680-7324},
    journal = {Atmos. Chem. Phys.},
    month = {jan},
    number = {2},
    pages = {1417--1452},
    title = {{Introduction to the SPARC Reanalysis Intercomparison Project (S-RIP) and overview of the reanalysis systems}},
    volume = {17},
    year = {2017}
    }
  • [DOI] Martineau, Patrick, Seok-Woo Son, and Masakazu Taguchi. 2016. Dynamical Consistency of Reanalysis Datasets in the Extratropical Stratosphere. J. clim. 29 (8):3057–3074.
    [Bibtex]
    @article{Martineau2016,
    author = {Martineau, Patrick and Son, Seok-Woo and Taguchi, Masakazu},
    doi = {10.1175/JCLI-D-15-0469.1},
    file = {:C$\backslash$:/Users/patri/OneDrive/Documents/Mendeley{\_}PDFs//Martineau, Son, Taguchi - 2016 - Dynamical Consistency of Reanalysis Datasets in the Extratropical Stratosphere.pdf:pdf},
    issn = {0894-8755},
    journal = {J. Clim.},
    month = {apr},
    number = {8},
    pages = {3057--3074},
    title = {{Dynamical Consistency of Reanalysis Datasets in the Extratropical Stratosphere}},
    volume = {29},
    year = {2016}
    }
  • [DOI] Martineau, Patrick and Seok-Woo Son. 2015. Onset of Circulation Anomalies during Stratospheric Vortex Weakening Events: The Role of Planetary-Scale Waves. J. clim. 28 (18):7347–7370.
    [Bibtex]
    @article{Martineau2015a,
    author = {Martineau, Patrick and Son, Seok-Woo},
    doi = {10.1175/JCLI-D-14-00478.1},
    file = {:C$\backslash$:/Users/patri/OneDrive/Documents/Mendeley{\_}PDFs/Martineau, Son - 2015 - Onset of Circulation Anomalies during Stratospheric Vortex Weakening Events The Role of Planetary-Scale Waves.pdf:pdf},
    issn = {0894-8755},
    journal = {J. Clim.},
    month = {sep},
    number = {18},
    pages = {7347--7370},
    title = {{Onset of Circulation Anomalies during Stratospheric Vortex Weakening Events: The Role of Planetary-Scale Waves}},
    volume = {28},
    year = {2015}
    }
  • [DOI] Martineau, Patrick and Seok-Woo Son. 2013. Planetary-scale wave activity as a source of varying tropospheric response to stratospheric sudden warming events: A case study. J. geophys. res. atmos. 118 (19):1–13.
    [Bibtex]
    @article{Martineau2013,
    author = {Martineau, Patrick and Son, Seok-Woo},
    doi = {10.1002/jgrd.50871},
    file = {:C$\backslash$:/Users/patri/OneDrive/Documents/Mendeley{\_}PDFs//Martineau, Son - 2013 - Planetary-scale wave activity as a source of varying tropospheric response to stratospheric sudden warming event.pdf:pdf},
    issn = {2169897X},
    journal = {J. Geophys. Res. Atmos.},
    month = {oct},
    number = {19},
    pages = {1--13},
    title = {{Planetary-scale wave activity as a source of varying tropospheric response to stratospheric sudden warming events: A case study}},
    volume = {118},
    year = {2013}
    }
  • [DOI] Martineau, Patrick and Seok-Woo Son. 2010. Quality of reanalysis data during stratospheric vortex weakening and intensification events. Geophys. res. lett. 37 (L22801):.
    [Bibtex]
    @article{Martineau2010,
    author = {Martineau, Patrick and Son, Seok-Woo},
    doi = {10.1029/2010GL045237},
    file = {:C$\backslash$:/Users/patri/OneDrive/Documents/Mendeley{\_}PDFs//Martineau, Son - 2010 - Quality of reanalysis data during stratospheric vortex weakening and intensification events.pdf:pdf},
    journal = {Geophys. Res. Lett.},
    number = {L22801},
    title = {{Quality of reanalysis data during stratospheric vortex weakening and intensification events}},
    volume = {37},
    year = {2010}
    }