Zobrazeno 1 - 10
of 20
pro vyhledávání: '"J. P. Barnard"'
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 4997-5013 (2024)
A novel ground-based radiometer, referred to as the Shortwave Array Spectroradiometer-Hemispheric (SAS-He), is introduced. This radiometer uses the shadow-band technique to report total irradiance and its direct and diffuse compo
Externí odkaz:
https://doaj.org/article/8e8459ecee1b4aff81337c3fb2d73b0f
Publikováno v:
South African Journal of Information Management, Vol 19, Iss 1, Pp e1-e10 (2017)
Background: Project success used to be measured solely in terms of efficiency metrics such as scope, cost and time; however, there are proposals that more attention should be paid to process-related performance factors such as communication. The adve
Externí odkaz:
https://doaj.org/article/abbdc420a5d043b591e9db8e54ca5219
Autor:
R. A. Zaveri, W. J. Shaw, D. J. Cziczo, B. Schmid, R. A. Ferrare, M. L. Alexander, M. Alexandrov, R. J. Alvarez, W. P. Arnott, D. B. Atkinson, S. Baidar, R. M. Banta, J. C. Barnard, J. Beranek, L. K. Berg, F. Brechtel, W. A. Brewer, J. F. Cahill, B. Cairns, C. D. Cappa, D. Chand, S. China, J. M. Comstock, M. K. Dubey, R. C. Easter, M. H. Erickson, J. D. Fast, C. Floerchinger, B. A. Flowers, E. Fortner, J. S. Gaffney, M. K. Gilles, K. Gorkowski, W. I. Gustafson, M. Gyawali, J. Hair, R. M. Hardesty, J. W. Harworth, S. Herndon, N. Hiranuma, C. Hostetler, J. M. Hubbe, J. T. Jayne, H. Jeong, B. T. Jobson, E. I. Kassianov, L. I. Kleinman, C. Kluzek, B. Knighton, K. R. Kolesar, C. Kuang, A. Kubátová, A. O. Langford, A. Laskin, N. Laulainen, R. D. Marchbanks, C. Mazzoleni, F. Mei, R. C. Moffet, D. Nelson, M. D. Obland, H. Oetjen, T. B. Onasch, I. Ortega, M. Ottaviani, M. Pekour, K. A. Prather, J. G. Radney, R. R. Rogers, S. P. Sandberg, A. Sedlacek, C. J. Senff, G. Senum, A. Setyan, J. E. Shilling, M. Shrivastava, C. Song, S. R. Springston, R. Subramanian, K. Suski, J. Tomlinson, R. Volkamer, H. W. Wallace, J. Wang, A. M. Weickmann, D. R. Worsnop, X.-Y. Yu, A. Zelenyuk, Q. Zhang
Publikováno v:
Atmospheric Chemistry and Physics, Vol 12, Iss 16, Pp 7647-7687 (2012)
Substantial uncertainties still exist in the scientific understanding of the possible interactions between urban and natural (biogenic) emissions in the production and transformation of atmospheric aerosol and the resulting impact on climate change.
Externí odkaz:
https://doaj.org/article/ca28072139e8430eae01b07ef8ee6645
Autor:
J. D. Fast, W. I. Gustafson Jr., L. K. Berg, W. J. Shaw, M. Pekour, M. Shrivastava, J. C. Barnard, R. A. Ferrare, C. A. Hostetler, J. A. Hair, M. Erickson, B. T. Jobson, B. Flowers, M. K. Dubey, S. Springston, R. B. Pierce, L. Dolislager, J. Pederson, R. A. Zaveri
Publikováno v:
Atmospheric Chemistry and Physics, Vol 12, Iss 4, Pp 1759-1783 (2012)
We describe the synoptic and regional-scale meteorological conditions that affected the transport and mixing of trace gases and aerosols in the vicinity of Sacramento, California during June 2010 when the Carbonaceous Aerosol and Radiative Effects St
Externí odkaz:
https://doaj.org/article/d2ce2da86731477da0419fc99b84dac9
Publikováno v:
Atmospheric Measurement Techniques, Vol 4, Iss 7, Pp 1463-1470 (2011)
The diffuse all-sky surface irradiances measured at two nearby wavelengths in the visible spectral range and their modeled clear-sky counterparts are the main components of a new method for estimating the fractional sky cover of different cloud types
Externí odkaz:
https://doaj.org/article/053f2d81b14e4f399a6d139092eefd34
Publikováno v:
Atmospheric Chemistry and Physics, Vol 10, Iss 15, Pp 7325-7340 (2010)
A comparison between observed aerosol optical properties from the MILAGRO field campaign, which took place in the Mexico City Metropolitan Area (MCMA) during March 2006, and values simulated by the Weather Research and Forecasting (WRF-Chem) model, r
Externí odkaz:
https://doaj.org/article/e4a99a01d29e46039dc2adaabfa0eabc
Autor:
E. G. Chapman, W. I. Gustafson Jr., R. C. Easter, J. C. Barnard, S. J. Ghan, M. S. Pekour, J. D. Fast
Publikováno v:
Atmospheric Chemistry and Physics, Vol 9, Iss 3, Pp 945-964 (2009)
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
Externí odkaz:
https://doaj.org/article/8bf6188cb6eb4f6984126416ea4d2b44
Publikováno v:
Atmospheric Chemistry and Physics, Vol 8, Iss 22, Pp 6665-6679 (2008)
Data taken from the MCMA-2003 and the 2006 MILAGRO field campaigns are used to examine the absorption of solar radiation by the organic component of aerosols. Using irradiance data from a Multi-Filter Rotating Shadowband Radiometer (MFRSR) and an act
Externí odkaz:
https://doaj.org/article/d5cc9f5c2a494987b684bdd719eaf8e0
Publikováno v:
Atmospheric Chemistry and Physics, Vol 8, Iss 5, Pp 1377-1389 (2008)
We use a Lagrangian dispersion model driven by a mesoscale model with four-dimensional data assimilation to simulate the dispersion of elemental carbon (EC) over a region encompassing Mexico City and its surroundings. The region was the study domain
Externí odkaz:
https://doaj.org/article/8746d39560c24c0793e49abbffda5a7c
Publikováno v:
Atmospheric Chemistry and Physics, Vol 7, Iss 12, Pp 3341-3351 (2007)
Multi-filter Rotating Shadowband Radiometers (MFRSRs) provide routine measurements of the aerosol optical depth (τ) at six wavelengths (0.415, 0.5, 0.615, 0.673, 0.870 and 0.94 μm). The single-scattering albedo (π0) is typically estimated from the
Externí odkaz:
https://doaj.org/article/0b6ada2e493843ab95e2c8e910348bd9