R
Richard Ménard
Researcher at Environment Canada
Publications - 58
Citations - 1927
Richard Ménard is an academic researcher from Environment Canada. The author has contributed to research in topics: Data assimilation & Kalman filter. The author has an hindex of 18, co-authored 54 publications receiving 1500 citations. Previous affiliations of Richard Ménard include Meteorological Service of Canada & University of Maryland, Baltimore County.
Papers
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Journal ArticleDOI
Ambient PM2.5, O3, and NO2 Exposures and Associations with Mortality over 16 Years of Follow-Up in the Canadian Census Health and Environment Cohort (CanCHEC)
Dan L. Crouse,Paul A. Peters,Perry Hystad,Jeffrey R. Brook,Jeffrey R. Brook,Aaron van Donkelaar,Randall V. Martin,Paul J. Villeneuve,Michael Jerrett,Mark S. Goldberg,C. Arden Pope,Michael Brauer,Robert D. Brook,Alain Robichaud,Richard Ménard,Richard T. Burnett +15 more
TL;DR: This large, national-level cohort found positive associations between several common causes of death and exposure to PM2.5, O3, and NO2 in the Canadian Census Health and Environment Cohort (CanCHEC).
Journal ArticleDOI
Urban greenness and mortality in Canada's largest cities: a national cohort study
Dan L. Crouse,Lauren Pinault,Adele Balram,Perry Hystad,Paul A. Peters,Hong Chen,Aaron van Donkelaar,Randall V. Martin,Randall V. Martin,Richard Ménard,Alain Robichaud,Paul J. Villeneuve +11 more
TL;DR: Increased amounts of residential greenness were associated with reduced risks of dying from several common causes of death among urban Canadians, and evidence of inequalities was identified in terms of exposures to greenness and mortality risks.
Journal ArticleDOI
Assimilation of Stratospheric Chemical Tracer Observations Using a Kalman Filter. Part I: Formulation
TL;DR: The formulation of a Kalman filter system for assimilating limb-sounding observations of stratospheric chemical constituents into a tracer transport model is described, based on a two-dimensional isentropic approximation.
Journal ArticleDOI
Assimilation of satellite observations of long-lived chemical species in global chemistry transport models
Boris Khattatov,Jean-Francois Lamarque,Lawrence V. Lyjak,Richard Ménard,Pieternel F. Levelt,Xuexi Tie,Guy Brasseur,John C. Gille +7 more
TL;DR: Collins et al. as discussed by the authors proposed a data assimilation approach based on a variant of the sub-optimal Kaiman filter for global chemistry transport models (CTM), which allows fast assimilation and mapping of satellite observations and provides estimates of analysis errors.
Journal ArticleDOI
Multi-year objective analyses of warm season ground-level ozone and PM 2.5 over North America using real-time observations and Canadian operational air quality models
Alain Robichaud,Richard Ménard +1 more
TL;DR: In this paper, a multi-year objective analysis (OA) for the warm season period (1 May to 31 October) for ground-level ozone and for fine particulate matter (diameter less than 2.5 microns (PM2.5)) is presented.