Zobrazeno 1 - 10
of 65
pro vyhledávání: '"H. Volten"'
Autor:
A. J. C. Berkhout, D. P. J. Swart, H. Volten, L. F. L. Gast, M. Haaima, H. Verboom, G. Stefess, T. Hafkenscheid, R. Hoogerbrugge
Publikováno v:
Atmospheric Measurement Techniques, Vol 10, Pp 4099-4120 (2017)
In this paper we present the continued development of the miniDOAS, an active differential optical absorption spectroscopy (DOAS) instrument used to measure ammonia concentrations in ambient air. The miniDOAS has been adapted for use in the Dutch
Externí odkaz:
https://doaj.org/article/9783e5907a45474c9015dfdf28f5f464
Autor:
A. Di Noia, O. P. Hasekamp, G. van Harten, J. H. H. Rietjens, J. M. Smit, F. Snik, J. S. Henzing, J. de Boer, C. U. Keller, H. Volten
Publikováno v:
Atmospheric Measurement Techniques, Vol 8, Iss 1, Pp 281-299 (2015)
In this paper, the use of a neural network algorithm for the retrieval of the aerosol properties from ground-based spectropolarimetric measurements is discussed. The neural network is able to retrieve the aerosol properties with an accuracy that is a
Externí odkaz:
https://doaj.org/article/283b4597d1bb45b5885e55c304503db0
Autor:
G. van Harten, J. de Boer, J. H. H. Rietjens, A. Di Noia, F. Snik, H. Volten, J. M. Smit, O. P. Hasekamp, J. S. Henzing, C. U. Keller
Publikováno v:
Atmospheric Measurement Techniques, Vol 7, Iss 12, Pp 4341-4351 (2014)
Characterization of atmospheric aerosols is important for understanding their impact on health and climate. A wealth of aerosol parameters can be retrieved from multi-angle, multi-wavelength radiance and polarization measurements of the clear sky. We
Externí odkaz:
https://doaj.org/article/0856ec8d19ac40cba9ddfe29fd905747
Autor:
H. Volten, J. B. Bergwerff, M. Haaima, D. E. Lolkema, A. J. C. Berkhout, G. R. van der Hoff, C. J. M. Potma, R. J. Wichink Kruit, W. A. J. van Pul, D. P. J. Swart
Publikováno v:
Atmospheric Measurement Techniques, Vol 5, Iss 2, Pp 413-427 (2012)
We present two Differential Optical Absorption Spectroscopy (DOAS) instruments built at RIVM: the RIVM DOAS and the miniDOAS. Both instruments provide virtually interference-free measurements of NH3 concentrations in the atmosphere, since they measur
Externí odkaz:
https://doaj.org/article/c9601380e9da476e899653507f2d3f1b
Publikováno v:
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, Vol 89, Iss S1, Pp C1V89S1P067-1 (2011)
We present experimental scattering matrix elements as functions of the scattering angle of two sets of three samples of clays (yellow, green, and white). The measurements were performed in Amsterdam at a wavelength of 633 nm, and at the IAA cosmic du
Externí odkaz:
https://doaj.org/article/390a610941de4c778374c7fb588af9ec
Autor:
A. J. C. Berkhout, D. P. J. Swart, H. Volten, L. F. L. Gast, M. Haaima, H. Verboom, G. Stefess, T. Hafkenscheid, R. Hoogerbrugge
Publikováno v:
Atmospheric Measurement Techniques, Vol 10, Pp 4099-4120 (2017)
In this paper we present the continued development of the miniDOAS, an active differential optical absorption spectroscopy (DOAS) instrument used to measure ammonia concentrations in ambient air. The miniDOAS has been adapted for use in the Dutch Nat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c40251cc5deddefb3db64964f844f928
https://www.atmos-meas-tech.net/10/4099/2017/
https://www.atmos-meas-tech.net/10/4099/2017/
Autor:
G. van Harten, J. de Boer, Christoph U. Keller, Frans Snik, J. S. Henzing, H. Volten, J. M. Smit, Jeroen Rietjens, Otto Hasekamp, A. Di Noia
Publikováno v:
Atmospheric Measurement Techniques, Vol 8, Iss 1, Pp 281-299 (2015)
Atmospheric Measurement Techniques, 1, 8, 281-299
Atmospheric Measurement Techniques, 1, 8, 281-299
In this paper, the use of a neural network algorithm for the retrieval of the aerosol properties from ground-based spectropolarimetric measurements is discussed. The neural network is able to retrieve the aerosol properties with an accuracy that is a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::744baba0b234ba03415ac16059c7c698
https://www.atmos-meas-tech.net/8/281/2015/
https://www.atmos-meas-tech.net/8/281/2015/
Autor:
Jeroen Rietjens, Christoph U. Keller, J. M. Smit, Otto Hasekamp, G. van Harten, Frans Snik, A. Di Noia, J. S. Henzing, J. de Boer, H. Volten
Publikováno v:
Atmospheric Measurement Techniques, Vol 7, Iss 12, Pp 4341-4351 (2014)
Atmospheric Measurement Techniques, 7(12), 4341-4351
Atmospheric Measurement Techniques, 7(12), 4341-4351
Characterization of atmospheric aerosols is important for understanding their impact on health and climate. A wealth of aerosol parameters can be retrieved from multi-angle, multi-wavelength radiance and polarization measurements of the clear sky. We
Autor:
Antonio Di Noia, H. Volten, Gerard van Harten, Arnoud Apituley, Bas Mijling, Jeroen Rietjens, Daphne Stam, Jozua de Boer, Ritse C. Heinsbroek, Frans Snik, J. Martijn Smit, S. Heikamp, Christoph U. Keller, Otto Hasekamp, Jan Vonk
Publikováno v:
Geophysical Research Letters. 41:7351-7358
To assess the impact of atmospheric aerosols on health, climate, and air traffic, aerosol properties must be measured with fine spatial and temporal sampling. This can be achieved by actively involving citizens and the technology they own to form an
Autor:
Jan Vonk, Derko Drukker, Sjoerd W. van Ratingen, H. Volten, Henri de Ruiter, Peter Y.J. Zandveld, L.F.L. Gast, Ernie Weijers, Joost Wesseling, Christa Blokhuis, Marita Voogt, Erik Tielemans
Publikováno v:
Atmosphere
Volume 10
Issue 8
Atmosphere, Vol 10, Iss 8, p 445 (2019)
Volume 10
Issue 8
Atmosphere, Vol 10, Iss 8, p 445 (2019)
The use of low-cost sensors for air quality measurements is expanding rapidly, with an associated rise in the number of citizens measuring air quality themselves. This has major implications for traditional air quality monitoring as performed by Envi