Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Elaine G. Chapman"'
Autor:
Alexander Laskin, Richard C. Easter, ManishKumar Shrivastava, Carl M. Berkowitz, Larry K. Berg, Jerome D. Fast, William I. Gustafson, Ying Liu, Elaine G. Chapman
Publikováno v:
Journal of Geophysical Research: Atmospheres. 118:1343-1360
[1] The Weather Research and Forecasting model coupled with chemistry, using 2 km horizontal grid spacing, is used to simulate two important relationships between aerosols and clouds in the vicinity of Oklahoma City during the June 2007 Cumulus Humil
Autor:
Elaine G. Chapman, Mary C. Barth, Jerome D. Fast, Jeremy P. Rishel, Rahul A. Zaveri, Georg Grell, Richard C. Easter, William I. Gustafson
Publikováno v:
Bulletin of the American Meteorological Society. 92:343-360
The current paradigm of developing and testing new aerosol process modules is haphazard and slow. Aerosol modules are often tested for short simulation periods using limited data so that their overall performance over a wide range of meteorological c
Autor:
Jerome D. Fast, William I. Gustafson, Elaine G. Chapman, Leo J. Donner, Witold F. Krajewski, Alexandros A. Ntelekos, James S. Smith
Publikováno v:
Quarterly Journal of the Royal Meteorological Society. 135:1367-1391
A fully coupled meteorology-chemistry-aerosol mesoscale model (WRF-Chem) is used to assess the effects of aerosols on intense convective precipitation over the northeastern United States. Numerical experiments are performed for three intense convecti
Autor:
Richard C. Easter, James C. Barnard, Mikhail Pekour, Elaine G. Chapman, William I. Gustafson, Steven J. Ghan, Jerome D. Fast
Publikováno v:
Atmospheric Chemistry and Physics. 9:945-964
The local and regional influence of elevated point sources on summertime aerosol forcing and cloud-aerosol interactions in northeastern North America was investigated using the WRF-Chem community model. The direct effects of aerosols on incoming sola
Autor:
Frederick C. Rutz, Bradley G. Fritz, William J. Shaw, Jeremy P. Rishel, Elaine G. Chapman, K Jerry Allwine
Publikováno v:
Atmospheric Environment. 42:1907-1921
Pacific Northwest National Laboratory (PNNL) has developed a dust transport model (DUSTRAN), which calculates atmospheric dust concentrations that result from both natural and human activity. DUSTRAN is a comprehensive dispersion modeling system, con
Autor:
Jerome D. Fast, Richard E. Shetter, John R. Schmelzer, James C. Barnard, James R. Slusser, Elaine G. Chapman
Publikováno v:
Atmospheric Environment. 38:3393-3403
The FAST-J algorithm was developed to quickly and accurately calculate photolysis rates under both clear and cloudy sky conditions. In this paper, photolysis rates of nitrogen dioxide were calculated using FAST-J and compared with measurements taken
Autor:
Nels S. Laulainen, Elaine G. Chapman, Carl M. Berkowitz, Shiyuan Zhong, Xindi Bian, Robert S. Disselkamp, Rahul A. Zaveri
Publikováno v:
Atmospheric Environment. 35:2395-2404
Nighttime measurements of aerosol surface area, O 3 , NO y and moisture were made downwind of Portland, Oregon, as part of a study to characterize the chemistry in a nocturnal urban plume. Air parcels sampled within the urban plume soon after sunset
Autor:
L. Ruby Leung, Nels S. Laulainen, Elaine G. Chapman, Rahul A. Zaveri, Rick D. Saylor, Yang Zhang, Steven J. Ghan, Hayder Abdul-Razzak, Richard C. Easter
Publikováno v:
Journal of Geophysical Research: Atmospheres. 106:5279-5293
Estimates of direct and indirect radiative forcing by anthropogenic sulfate aerosols from an integrated global aerosol and climate modeling system are presented. A detailed global tropospheric chemistry and aerosol model that predicts concentrations
Autor:
James P. Cowin, Rahul A. Zaveri, Elaine G. Chapman, Nels S. Laulainen, Robert S. Disselkamp, Michael A. Carpenter, Carl M. Berkowitz
Publikováno v:
Journal of Geophysical Research: Atmospheres. 105:9767-9771
The fractal-like structure of atmospheric soot (e.g., elemental carbon) provides a large surface area available for heterogeneous chemistry in the upper troposphere and lower stratosphere [Blake and Kato, 1995]. One potentially important reaction is