Zobrazeno 1 - 10
of 30
pro vyhledávání: '"M. S. Bourqui"'
Publikováno v:
Atmospheric Chemistry and Physics, Vol 12, Iss 16, Pp 7707-7724 (2012)
The stratosphere is thought to play a central role in the atmospheric response to solar irradiance variability. Recent observations suggest that the spectral solar irradiance (SSI) variability involves significant time-dependent spectral variations,
Externí odkaz:
https://doaj.org/article/911d809b2494460996c10e571356ec65
Autor:
M. S. Bourqui, A. Yamamoto, D. Tarasick, M. D. Moran, L.-P. Beaudoin, I. Beres, J. Davies, A. Elford, W. Hocking, M. Osman, R. Wilkinson
Publikováno v:
Atmospheric Chemistry and Physics, Vol 12, Iss 5, Pp 2661-2679 (2012)
A new global real-time Lagrangian diagnostic system for stratosphere-troposphere exchange (STE) developed for Environment Canada (EC) has been delivering daily archived data since July 2010. The STE calculations are performed following the Lagrangian
Externí odkaz:
https://doaj.org/article/9bac29536f404c6b8c52cb5834185d5c
Autor:
H. He, D. W. Tarasick, W. K. Hocking, T. K. Carey-Smith, Y. Rochon, J. Zhang, P. A. Makar, M. Osman, J. Brook, M. D. Moran, D. B. A. Jones, C. Mihele, J. C. Wei, G. Osterman, P. S. Argall, J. McConnell, M. S. Bourqui
Publikováno v:
Atmospheric Chemistry and Physics, Vol 11, Iss 6, Pp 2569-2583 (2011)
Twice-daily ozonesondes were launched from Harrow, in southwestern Ontario, Canada, during the BAQS-Met (Border Air Quality and Meteorology Study) field campaign in June and July of 2007. A co-located radar windprofiler measured tropopause height con
Externí odkaz:
https://doaj.org/article/4c8462ed26524d6983cf2e4434de5b2f
Autor:
M. S. Bourqui
Publikováno v:
Atmospheric Chemistry and Physics, Vol 6, Iss 9, Pp 2651-2670 (2006)
An important part of extra-tropical stratosphere-to-troposphere transport occurs in association with baroclinic wave breaking and cut-off decay at the tropopause. In the last decade many studies have attempted to estimate stratosphere-troposphere exc
Externí odkaz:
https://doaj.org/article/b56c81e612a14d58a006092f1374b8e4
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 132:22-32
We present calculations of stratospheric chemical abundances variations between different levels of solar activity using a simple photochemistry model in transient chemistry mode. Different models for the reconstruction of the solar spectrum, as well
Publikováno v:
Climate Dynamics. 45:3593-3607
Using a novel Lagrangian approach, we assess the relative roles of the atmosphere and ocean in setting interannual variability in western European wintertime temperatures. We compute sensible and latent heat fluxes along atmospheric particle trajecto
Publikováno v:
Solar Physics. 289:2891-2906
We present a reconstruction of the solar spectrum in the near and mid-ultraviolet spectral range during the Maunder Minimum, a period of strongly suppressed magnetic activity spanning the second half of the 17th century. This spectral reconstruction
Autor:
Thomas Milewski, M. S. Bourqui
Publikováno v:
Tellus: Series A, Dynamic Meteorology and Oceanography, Vol 65, Iss 0, Pp 1-14 (2013)
Tellus A; Vol 65 (2013)
Tellus A; Vol 65 (2013)
A new stratospheric ensemble Kalman smoother (EnKS) system is introduced, and the potential of assimilating posterior stratospheric observations to better constrain the whole model state at analysis time is investigated. A set of idealised perfect-mo
Autor:
Simon Chabrillat, Stella M. L. Melo, Sébastien Viscardy, R. Muncaster, M. S. Bourqui, Paul Charbonneau
Publikováno v:
Atmospheric Chemistry and Physics, Vol 12, Iss 16, Pp 7707-7724 (2012)
The stratosphere is thought to play a central role in the atmospheric response to solar irradiance variability. Recent observations suggest that the spectral solar irradiance (SSI) variability involves significant time-dependent spectral variations,
Publikováno v:
Solar Physics. 279:383-409
We present a model for the reconstruction of spectral solar irradiance between 200 and 400 nm. This model is an extension of the total solar irradiance (TSI) model of Crouch et al. (Astrophys. J.677, 723, 2008) which is based on a data-driven Monte C