Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Anthony D. A. Hansen"'
Autor:
Lu Yang, Huikun Liu, Chongshu Zhu, Hong Huang, Qiyuan Wang, Junji Cao, Yao Qu, Yue Zhou, Anthony D. A. Hansen
Publikováno v:
Gondwana Research. 90:159-164
To investigate the seasonal variation of black carbon (BC) and brown carbon (BrC) light absorption at an urban site in Xi'an, China, an annual measurement was conducted by using a 7-wavelengths Aethalometer (model AE33). The results showed the aeroso
Autor:
Prakash Doraiswamy, Paul A. Solomon, Paige Presler-Jur, John G. Watson, Anna-Marie Hyatt, Nicole P. Hyslop, Anthony D. A. Hansen, James J. Schauer
Publikováno v:
Metrology; Volume 1; Issue 2; Pages: 142-165
A simple method that reproducibly creates validation/reference materials for comparison of methods that measure the carbonaceous content of atmospheric particulate matter deposited on filter media at concentrations relevant to atmospheric levels has
Autor:
Mei Zheng, Yue Liu, Baoxian Liu, Tianle Zhang, Yang Cao, Daren Lyu, Anthony D. A. Hansen, Yinan Wang, Mengxiao Luan, Xi Yang
Publikováno v:
Geophysical Research Letters
Under the influence of Coronavirus Disease 2019 (COVID‐19), China conducted a nationwide lockdown (LD) which significantly reduced anthropogenic emissions. To analyze the different impacts of COVID‐19 on black carbon (BC) in the two representativ
Autor:
Anthony D. A. Hansen, Irena Kranjc, Judita Burger, Athanasia Vlachou, Martin Rigler, Jean Sciare, Janja Turšič, Jean Luc Jaffrezo, Griša Močnik, André S. H. Prévôt, Luka Drinovec, Gašper Lavrič, Iasonas Stavroulas
We present the newly developed Total Carbon Analyzer (TCA08), and a new method for online speciation of carbonaceous aerosol with a high time resolution. The total carbon content is determined by flash heating of a sample collected on a quartz-fiber
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1c744495c27ae07c7418ddba72f682b
https://doi.org/10.5194/amt-2019-376
https://doi.org/10.5194/amt-2019-376
Autor:
Junji Cao, Zhenxing Shen, Tafeng Hu, Xuexi Tie, Hong Huang, Zhuzi Zhao, Griša Močnik, Qiyuan Wang, Ru-Jin Huang, Anthony D. A. Hansen, Chongshu Zhu
Publikováno v:
The Science of the total environment.
We present a study of aerosol light absorption by using a 7-wavelength Aethalometer model AE33 at an urban site (Lhasa) and a remote site (Lulang) in the Tibetan Plateau. Approximately 5 times greater aerosol absorption values were observed at Lhasa
Autor:
Ralf Zimmermann, Gülcin Abbaszade, Jürgen Schnelle-Kreis, Klaus Schäfer, Jürgen Orasche, David P. Harlos, Anthony D. A. Hansen
Publikováno v:
Analytical and Bioanalytical Chemistry. 401:3083-3094
Direct thermal desorption and in-situ derivatization thermal desorption methods in conjunction with gas chromatography time-of-flight mass spectrometry have been characterized and evaluated for analysis of trace components from filters loaded with am
Autor:
Peter Zotter, C. Ruckstuhl, Griša Močnik, A. Wiedensohler, Jean Sciare, Luka Drinovec, André S. H. Prévôt, Maheswar Rupakheti, Thomas Müller, Anthony D. A. Hansen, Esther Coz
Publikováno v:
Atmospheric Measurement Techniques
Atmospheric Measurement Techniques, 2015, 8 (5), pp.1965-1979. ⟨10.5194/amt-8-1965-2015⟩
Atmospheric Measurement Techniques, Vol 8, Iss 5, Pp 1965-1979 (2015)
Atmospheric Measurement Techniques, European Geosciences Union, 2015, 8 (5), pp.1965-1979. ⟨10.5194/amt-8-1965-2015⟩
Atmospheric Measurement Techniques, 2015, 8 (5), pp.1965-1979. ⟨10.5194/amt-8-1965-2015⟩
Atmospheric Measurement Techniques, Vol 8, Iss 5, Pp 1965-1979 (2015)
Atmospheric Measurement Techniques, European Geosciences Union, 2015, 8 (5), pp.1965-1979. ⟨10.5194/amt-8-1965-2015⟩
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 most important anthropogenic forcing agent for climate change. It is the primary tracer for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::282051308846dfc67887620270b9bd40
https://publications.rifs-potsdam.de/pubman/item/item_948896
https://publications.rifs-potsdam.de/pubman/item/item_948896
Autor:
Anthony D. A. Hansen, M. C. Freitas, Paulo Fialho, Richard E. Honrath, Filipe Barata, B. J. Vieira
Publikováno v:
Journal of Aerosol Science. 37:1497-1506
This paper shows the use of the instrumental neutron activation analysis (INAA) technique to calibrate Aethalometer instruments’ response to iron oxides present in Saharan dust aerosol. The five samples selected for this calibration were collected
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
instacron:RCAAP
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
instacron:RCAAP
Copyright © 2004 Elsevier Ltd. All rights reserved. We present a new approach to decouple aerosol absorption coefficients due to iron oxide in Sahara dust from those due to black carbon (BC) particles. Absorption coefficients, σaerosol(λ,t), were
Publikováno v:
Atmospheric Research. 44:153-165
In April 1992 we performed measurements of Arctic aerosol properties from an aircraft flying over the East Siberian Sea from Cherskiy (69°N, 161°E) to Bennett Island (76.5°N, 149°E). Eight round-trip flights were made over this 1000 kilometer pat