Search Results - "Wiedensohler, A."

Recommendations for reporting "black carbon" measurements by Petzold, A, Ogren, J. A, Fiebig, M, Laj, P, Li, S.-M, Baltensperger, U, Holzer-Popp, T, Kinne, S, Pappalardo, G, Sugimoto, N, Wehrli, C, Wiedensohler, A, Zhang, X.-Y

“…Although black carbon (BC) is one of the key atmospheric particulate components driving climate change and air quality, there is no agreement on the…”
Get full text

The "dual-spot" Aethalometer: an improved measurement of aerosol black carbon with real-time loading compensation by Drinovec, L, Močnik, G, Zotter, P, Prévôt, A. S. H, Ruckstuhl, C, Coz, E, Rupakheti, M, Sciare, J, Müller, T, Wiedensohler, A, Hansen, A. D. A

“…Aerosol black carbon is a unique primary tracer for combustion emissions. It affects the optical properties of the atmosphere and is recognized as the second…”
Get full text

Particle hygroscopicity and its link to chemical composition in the urban atmosphere of Beijing, China, during summertime by Wu, Z J, Zheng, J, Shang, D J, Du, Z F, Wu, Y S, Zeng, L M, Wiedensohler, A, M Hu

“…Simultaneous measurements of particle number size distribution, particle hygroscopic properties, and size-resolved chemical composition were made during the…”
Get full text

Mobility particle size spectrometers: Calibration procedures and measurement uncertainties by Wiedensohler, A., Wiesner, A., Weinhold, K., Birmili, W., Hermann, M., Merkel, M., Müller, T., Pfeifer, S., Schmidt, A., Tuch, T., Velarde, F., Quincey, P., Seeger, S., Nowak, A.

“…Mobility particle size spectrometers (MPSS) belong to the essential instruments in aerosol science that determine the particle number size distribution (PNSD)…”
Get full text

A European aerosol phenomenology-5: Climatology of black carbon optical properties at 9 regional background sites across Europe by Zanatta, M., Gysel, M., Bukowiecki, N., Müller, T., Weingartner, E., Areskoug, H., Fiebig, M., Yttri, K.E., Mihalopoulos, N., Kouvarakis, G., Beddows, D., Harrison, R.M., Cavalli, F., Putaud, J.P., Spindler, G., Wiedensohler, A., Alastuey, A., Pandolfi, M., Sellegri, K., Swietlicki, E., Jaffrezo, J.L., Baltensperger, U., Laj, P.

“…A reliable assessment of the optical properties of atmospheric black carbon is of crucial importance for an accurate estimation of radiative forcing. In this…”
Get full text

Design and performance of a three-wavelength LED-based total scatter and backscatter integrating nephelometer by Müller, T., Laborde, M., Kassell, G., Wiedensohler, A.

“…Integrating nephelometers are instruments that directly measure a value close to the light scattering coefficient of airborne particles. Different models of…”
Get full text

Aerosol hygroscopicity derived from size-segregated chemical composition and its parameterization in the North China Plain by Liu, H. J, Zhao, C. S, Nekat, B, Ma, N, Wiedensohler, A, van Pinxteren, D, Spindler, G, Müller, K, Herrmann, H

“…Hygroscopic growth of aerosol particles is of significant importance in quantifying the aerosol radiative effect in the atmosphere. In this study, hygroscopic…”
Get full text

Wintertime aerosol chemical composition and source apportionment of the organic fraction in the metropolitan area of Paris by Crippa, M, DeCarlo, P. F, Slowik, J. G, Mohr, C, Heringa, M. F, Chirico, R, Poulain, L, Freutel, F, Sciare, J, Cozic, J, Di Marco, C. F, Elsasser, M, Nicolas, J. B, Marchand, N, Abidi, E, Wiedensohler, A, Drewnick, F, Schneider, J, Borrmann, S, Nemitz, E, Zimmermann, R, Jaffrezo, J.-L, Prévôt, A. S. H, Baltensperger, U

“…The effect of a post-industrial megacity on local and regional air quality was assessed via a month-long field measurement campaign in the Paris metropolitan…”
Get full text

Cloud condensation nuclei in polluted air and biomass burning smoke near the mega-city Guangzhou, China – Part 1: Size-resolved measurements and implications for the modeling of aerosol particle hygroscopicity and CCN activity by Rose, D., Nowak, A., Achtert, P., Wiedensohler, A., Hu, M., Shao, M., Zhang, Y., Andreae, M. O., Pöschl, U.

“…Atmospheric aerosol particles serving as Cloud Condensation Nuclei (CCN) are key elements of the hydrological cycle and climate. We measured and characterized…”
Get full text

A European aerosol phenomenology – 3: Physical and chemical characteristics of particulate matter from 60 rural, urban, and kerbside sites across Europe by Putaud, J.-P., Van Dingenen, R., Alastuey, A., Bauer, H., Birmili, W., Cyrys, J., Flentje, H., Fuzzi, S., Gehrig, R., Hansson, H.C., Harrison, R.M., Herrmann, H., Hitzenberger, R., Hüglin, C., Jones, A.M., Kasper-Giebl, A., Kiss, G., Kousa, A., Kuhlbusch, T.A.J., Löschau, G., Maenhaut, W., Molnar, A., Moreno, T., Pekkanen, J., Perrino, C., Pitz, M., Puxbaum, H., Querol, X., Rodriguez, S., Salma, I., Schwarz, J., Smolik, J., Schneider, J., Spindler, G., ten Brink, H., Tursic, J., Viana, M., Wiedensohler, A., Raes, F.

“…This paper synthesizes data on aerosol (particulate matter, PM) physical and chemical characteristics, which were obtained over the past decade in aerosol…”
Get full text

Hygroscopic properties of aerosol particles at high relative humidity and their diurnal variations in the North China Plain by Liu, P. F., Zhao, C. S., Göbel, T., Hallbauer, E., Nowak, A., Ran, L., Xu, W. Y., Deng, Z. Z., Ma, N., Mildenberger, K., Henning, S., Stratmann, F., Wiedensohler, A.

“…The hygroscopic properties of submicron aerosol particles were determined at a suburban site (Wuqing) in the North China Plain among a cluster of cities during…”
Get full text

Long term measurements of submicrometer urban aerosols: statistical analysis for correlations with meteorological conditions and trace gases by Wehner, B., Wiedensohler, A.

“…Long-term measurements (over 4 years) of particle number size distributions (submicrometer particles, 3-800 nm in diameter), trace gases (NO, NO2, and O3), and…”
Get full text

Exploring the atmospheric chemistry of nitrous acid (HONO) at a rural site in Southern China by Li, X, Brauers, T, Häseler, R, Bohn, B, Fuchs, H, Hofzumahaus, A, Holland, F, Lou, S, Lu, K. D, Rohrer, F, Hu, M, Zeng, L. M, Zhang, Y. H, Garland, R. M, Su, H, Nowak, A, Wiedensohler, A, Takegawa, N, Shao, M, Wahner, A

“…We performed measurements of nitrous acid (HONO) during the PRIDE-PRD2006 campaign in the Pearl River Delta region 60 km north of Guangzhou, China, for 4 weeks…”
Get full text

Relating particle hygroscopicity and CCN activity to chemical composition during the HCCT-2010 field campaign by Wu, Z. J, Poulain, L, Henning, S, Dieckmann, K, Birmili, W, Merkel, M, van Pinxteren, D, Spindler, G, Müller, K, Stratmann, F, Herrmann, H, Wiedensohler, A

“…Particle hygroscopic growth at 90% RH (relative humidity), cloud condensation nuclei (CCN) activity, and size-resolved chemical composition were concurrently…”
Get full text

The roles of sulfuric acid in new particle formation and growth in the mega-city of Beijing by Yue, D. L., Hu, M., Zhang, R. Y., Wang, Z. B., Zheng, J., Wu, Z. J., Wiedensohler, A., He, L. Y., Huang, X. F., Zhu, T.

“…Simultaneous measurements of gaseous sulfuric acid and particle number size distributions were performed to investigate aerosol nucleation and growth during…”
Get full text

Characteristics of regional new particle formation in urban and regional background environments in the North China Plain by Wang, Z. B, Hu, M, Sun, J. Y, Wu, Z. J, Yue, D. L, Shen, X. J, Zhang, Y. M, Pei, X. Y, Cheng, Y. F, Wiedensohler, A

“…Long-term measurements of particle number size distributions were carried out both at an urban background site (Peking University, PKU) and a regional Global…”
Get full text

Hygroscopic behavior of atmospherically relevant water-soluble carboxylic salts and their influence on the water uptake of ammonium sulfate by Wu, Z. J., Nowak, A., Poulain, L., Herrmann, H., Wiedensohler, A.

“…The hygroscopic behavior of atmospherically relevant water-soluble carboxylic salts and their effects on ammonium sulfate were investigated using a…”
Get full text

A parameterization of low visibilities for hazy days in the North China Plain by Chen, J, Zhao, C. S, Ma, N, Liu, P. F, Göbel, T, Hallbauer, E, Deng, Z. Z, Ran, L, Xu, W. Y, Liang, Z, Liu, H. J, Yan, P, Zhou, X. J, Wiedensohler, A

“…Visibility degradation is a pervasive and urgent environmental problem in China. The occurrence of low visibility events is frequent in the North China Plain,…”
Get full text

Cloud condensation nuclei (CCN) from fresh and aged air pollution in the megacity region of Beijing by Gunthe, S. S., Rose, D., Su, H., Garland, R. M., Achtert, P., Nowak, A., Wiedensohler, A., Kuwata, M., Takegawa, N., Kondo, Y., Hu, M., Shao, M., Zhu, T., Andreae, M. O., Pöschl, U.

“…Atmospheric aerosol particles serving as cloud condensation nuclei (CCN) are key elements of the hydrological cycle and climate. CCN properties were measured…”
Get full text

First long-term study of particle number size distributions and new particle formation events of regional aerosol in the North China Plain by Shen, X. J., Sun, J. Y., Zhang, Y. M., Wehner, B., Nowak, A., Tuch, T., Zhang, X. C., Wang, T. T., Zhou, H. G., Zhang, X. L., Dong, F., Birmili, W., Wiedensohler, A.

“…Atmospheric particle number size distributions (size range 0.003–10 μm) were measured between March 2008 and August 2009 at Shangdianzi (SDZ), a rural research…”
Get full text