Zobrazeno 1 - 10
of 13
pro vyhledávání: '"K. Chiloane"'
Autor:
E. Giannakaki, A. Pfüller, K. Korhonen, T. Mielonen, L. Laakso, V. Vakkari, H. Baars, R. Engelmann, J. P. Beukes, P. G. Van Zyl, M. Josipovic, P. Tiitta, K. Chiloane, S. Piketh, H. Lihavainen, K. E. J. Lehtinen, M. Komppula
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 10, Pp 5429-5442 (2015)
Raman lidar data obtained over a 1 year period has been analysed in relation to aerosol layers in the free troposphere over the Highveld in South Africa. In total, 375 layers were observed above the boundary layer during the period 30 January 2010 to
Externí odkaz:
https://doaj.org/article/0ed345620fcc4f4da8b741ec3afe7a27
Autor:
J. Backman, A. Virkkula, V. Vakkari, J. P. Beukes, P. G. Van Zyl, M. Josipovic, S. Piketh, P. Tiitta, K. Chiloane, T. Petäjä, M. Kulmala, L. Laakso
Publikováno v:
Atmospheric Measurement Techniques, Vol 7, Iss 12, Pp 4285-4298 (2014)
Absorption Ångström exponents (AAEs) calculated from filter-based absorption measurements are often used to give information on the origin of the ambient aerosol, for example, to distinguish between urban pollution and biomass burning aerosol. Filt
Externí odkaz:
https://doaj.org/article/05b415ae986f4702ad0404809f6e3ff2
Autor:
K. Korhonen, E. Giannakaki, T. Mielonen, A. Pfüller, L. Laakso, V. Vakkari, H. Baars, R. Engelmann, J. P. Beukes, P. G. Van Zyl, A. Ramandh, L. Ntsangwane, M. Josipovic, P. Tiitta, G. Fourie, I. Ngwana, K. Chiloane, M. Komppula
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 8, Pp 4263-4278 (2014)
Atmospheric lidar measurements were carried out at Elandsfontein measurement station, on the eastern Highveld approximately 150 km east of Johannesburg in South Africa throughout 2010. The height of the planetary boundary layer (PBL) top was continuo
Externí odkaz:
https://doaj.org/article/2c15d4209b3e4bfe9fbca03fc52fac9b
South African EUCAARI measurements: seasonal variation of trace gases and aerosol optical properties
Autor:
L. Laakso, V. Vakkari, A. Virkkula, H. Laakso, J. Backman, M. Kulmala, J. P. Beukes, P. G. van Zyl, P. Tiitta, M. Josipovic, J. J. Pienaar, K. Chiloane, S. Gilardoni, E. Vignati, A. Wiedensohler, T. Tuch, W. Birmili, S. Piketh, K. Collett, G. D. Fourie, M. Komppula, H. Lihavainen, G. de Leeuw, V.-M. Kerminen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 12, Iss 4, Pp 1847-1864 (2012)
In this paper we introduce new in situ observations of atmospheric aerosols, especially chemical composition, physical and optical properties, on the eastern brink of the heavily polluted Highveld area in South Africa. During the observation period b
Externí odkaz:
https://doaj.org/article/b9604a4e716444568cffb78e11e6e064
Autor:
Holger Baars, Johan P. Beukes, Tero Mielonen, Stuart Piketh, Kimmo Korhonen, Heikki Lihavainen, Kari E. J. Lehtinen, Mika Komppula, E. Giannakaki, Ville Vakkari, Lauri Laakso, Ronny Engelmann, P. G. van Zyl, Petri Tiitta, Miroslav Josipovic, A. Pfüller, K. Chiloane
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 10, Pp 5429-5442 (2015)
Article
Raman lidar data obtained over a 1 year period has been analysed in relation to aerosol layers in the free troposphere over the Highveld in South Africa. In total, 375 layers were observed above the boundary layer during the period 30 Ja
Raman lidar data obtained over a 1 year period has been analysed in relation to aerosol layers in the free troposphere over the Highveld in South Africa. In total, 375 layers were observed above the boundary layer during the period 30 Ja
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1fcba93810e34f8baa589547973ef7b
http://www.atmos-chem-phys.net/15/5429/2015/acp-15-5429-2015.pdf
http://www.atmos-chem-phys.net/15/5429/2015/acp-15-5429-2015.pdf
Autor:
Markku Kulmala, Lauri Laakso, Stuart Piketh, Johan P. Beukes, K. Atlaskina, Kerneels Jaars, A. Wiedensohler, Jacobus J. Pienaar, Anu-Maija Sundström, P. G. van Zyl, Tuomo Nieminen, A. D. Venter, G. de Leeuw, Anna Nikandrova, E. K. Chiloane, Antti Arola, Ville Vakkari, Miroslav Josipovic
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 9, Pp 4983-4996 (2015)
Proxies for estimating nucleation mode number concentrations and further simplification for their use with satellite data have been presented in Kulmala et al. (2011). In this paper we discuss the underlying assumptions for these simplifications and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef82d5c781e1d61a66461217c7155afb
http://www.atmos-chem-phys.net/15/4983/2015/acp-15-4983-2015.pdf
http://www.atmos-chem-phys.net/15/4983/2015/acp-15-4983-2015.pdf
Autor:
Aki Virkkula, John Backman, Johan P. Beukes, K. Chiloane, Stuart Piketh, Markku Kulmala, Lauri Laakso, Ville Vakkari, Petri Tiitta, Miroslav Josipovic, Tuukka Petäjä, P. G. van Zyl
Publikováno v:
Atmospheric Measurement Techniques, Vol 7, Iss 12, Pp 4285-4298 (2014)
Absorption Ångström exponents (AAEs) calculated from filter-based absorption measurements are often used to give information on the origin of the ambient aerosol, for example, to distinguish between urban pollution and biomass burning aerosol. Filt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0809918479e75bdfa577507e417bc162
https://doi.org/10.5194/amt-7-4285-2014
https://doi.org/10.5194/amt-7-4285-2014
Autor:
Kimmo Korhonen, Ville Vakkari, Ronny Engelmann, I. Ngwana, E. Giannakaki, Petri Tiitta, L. Ntsangwane, Avishkar Ramandh, Miroslav Josipovic, K. Chiloane, A. Pfüller, P. G. van Zyl, Tero Mielonen, Johan P. Beukes, Lauri Laakso, Holger Baars, Mika Komppula, Gerhardus D. Fourie
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 8, Pp 4263-4278 (2014)
Atmospheric lidar measurements were carried out at Elandsfontein measurement station, on the eastern Highveld approximately 150 km east of Johannesburg in South Africa (SA) throughout 2010. The height of the planetary boundary layer (PBL) top was con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::160d8391510fb416bec5cb8598e3a2d6
https://doi.org/10.5194/acp-14-4263-2014
https://doi.org/10.5194/acp-14-4263-2014
Autor:
A.-M. Sundström, A. Nikandrova, K. Atlaskina, T. Nieminen, V. Vakkari, L. Laakso, J. P. Beukes, A. Arola, P. G. van Zyl, M. Josipovic, A. D. Venter, K. Jaars, J. J. Pienaar, S. Piketh, A. Wiedensohler, E. K. Chiloane, G. de Leeuw, M. Kulmala
In this work satellite observations from the NASA's A-Train constellation were used to derive the values of primary emission and regional nucleation proxies over South Africa to estimate the potential for new particle formation. As derived in Kulmala
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e07a8856696285dea2e31bc0d456790
https://doi.org/10.5194/acpd-14-25825-2014
https://doi.org/10.5194/acpd-14-25825-2014
Autor:
J. Backman, A. Virkkula, V. Vakkari, J. P. Beukes, P. Van Zyl, M. Josipovic, S. Piketh, P. Tiitta, K. Chiloane, T. Petäjä, M. Kulmala, L. Laakso
Absorption Ångstrom exponents (AAE) calculated from filter-based absorption measurements are often used to give information on the origin of the ambient aerosol, for example to distinguish between urban pollution and biomass burning aerosol. Filter-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9c196c3bdb3384b24f8bf0dbe26489b
https://doi.org/10.5194/amtd-7-9733-2014
https://doi.org/10.5194/amtd-7-9733-2014