Browsing by Author "Le Sager, P"

Now showing items 1-5 of 5

    • Chemistry of Hydrogen Oxide Radicals \((HO_x)\) in the Arctic Troposphere in Spring 

      Mao, Jialin; Jacob, Daniel J.; Evans, M. J.; Olson, J. R.; Ren, X.; Brune, W. H.; St. Clair, J. M.; Crounse, J. D.; Spencer, K. M.; Beaver, M. R.; Wennberg, P. O.; Cubison, M. J.; Jimenez, J. L.; Fried, A.; Weibring, P.; Walega, J. G.; Hall, S. R.; Weinheimer, A. J.; Cohen, R. C.; Chen, G.; Crawford, J. H.; McNaughton, C.; Clarke, A. D.; Jaeglé, L.; Fisher, J. A.; Yantosca, R. M.; Le Sager, P; Carouge, C. (European Geosciences Union, 2010)
      We use observations from the April 2008 NASA ARCTAS aircraft campaign to the North American Arctic, interpreted with a global 3-D chemical transport model (GEOS-Chem), to better understand the sources and cycling of hydrogen ...

    • Regional CO pollution and export in China simulated by the high-resolution nested-grid GEOS-Chem model 

      Chen, D.; Wang, Yichao; McElroy, Michael Brendon; He, K.; Yantosca, Robert M.; Le Sager, P (Copernicus GmbH, 2009)
      An updated version of the nested-grid GEOS-Chem model is developed allowing for higher horizontal (0.5°×0.667°) resolution as compared to global models. CO transport over a heavily polluted region, the Beijing-Tianjin-Hebei ...

    • Regional CO Pollution in China Simulated by the High-Resolution Nested-Grid GEOS-Chem Model 

      Chen, Dan; Yuxuan, Wang; McElroy, Michael Brendon; He, Kebin; Yantosca, Robert M.; Le Sager, Philippe (Copernicus Publications, 2009)
      An updated version of the nested-grid GEOS-Chem model is developed allowing for higher horizontal (0.5°×0.667°) and vertical resolution as compared to global models. CO transport over a heavily polluted region, the ...

    • Source Attribution and Interannual Variability of Arctic Pollution in Spring Constrained by Aircraft (ARCTAS, ARCPAC) and Satellite (AIRS) Observations of Carbon Monoxide 

      Fisher, J. A.; Jacob, Daniel J.; Purdy, M. T.; Kopacz, M.; Le Sager, P; Carouge, C.; Holmes, C. D.; Yantosca, Robert M.; Batchelor, R. L.; Strong, K.; Diskin, G. S.; Fuelberg, H. E.; Holloway, J. S.; Hyer, E. J.; McMillan, W. W.; Warner, J.; Streets, D. G.; Zhang, Q.; Wang, Y.; Wu, S. (European Geosciences Union, 2010)
      We use aircraft observations of carbon monoxide (CO) from the NASA ARCTAS and NOAA ARCPAC campaigns in April 2008 together with multiyear (2003–2008) CO satellite data from the AIRS instrument and a global chemical transport ...

    • Sources of carbonaceous aerosols and deposited black carbon in the Arctic in winter-spring: implications for radiative forcing 

      Wang, Qiaoqiao; Jacob, Daniel James; Fisher, Jenny Allison; Mao, Jialin; Leibensperger, E; Carouge, C. C.; Le Sager, P; Kondo, Y.; Jimenez, J. L.; Cubison, M. J.; Doherty, S. J. (European Geosciences Union, 2011)
      We use a global chemical transport model (GEOS-Chem CTM) to interpret observations of black carbon (BC) and organic aerosol (OA) from the NASA ARCTAS aircraft campaign over the North American Arctic in April 2008, as well ...