Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Johan F. de Haan"'
DISAMAR (determining instrument specifications and analysing methods for atmospheric retrieval) is a computer model developed to simulate retrievals of properties of atmospheric trace gases, aerosols, clouds, and the ground surface from passive remot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d731d9f7fe20d2c8b3eee943f4cb514a
https://gmd.copernicus.org/preprints/gmd-2021-439/
https://gmd.copernicus.org/preprints/gmd-2021-439/
Global mapping of satellite tropospheric NO2 vertical column density (VCD), a key gas in air quality monitoring, requires accurate retrievals over complex urban and industrialized areas. The high abundance of aerosol particles in regions dominated by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2565c90328621ee6bb1fcd815bdcd65
https://doi.org/10.5194/amt-2018-247
https://doi.org/10.5194/amt-2018-247
The OMI (Ozone Monitoring Instrument) OMCLDO2 cloud product supports trace gas retrievals of for example ozone and nitrogen dioxide. The OMCLDO2 algorithm derives the effective cloud fraction and effective cloud pressure using a DOAS fit of the O2-O2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13b568e5683e593c147eec8262c1ec28
https://doi.org/10.5194/amt-2016-48
https://doi.org/10.5194/amt-2016-48
Autor:
Johan F. de Haan, Piet Stammes, Daphne Stam, Joop W. Hovenier, Robert B. A. Koelemeijer, W. J. J. Knibbe
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer, 64, 173-199. Elsevier Limited
Knibbe, W J J, de Haan, J F, Hovenier, J W, Stam, D M, Koelemeijer, R B A & Stammes, P 2000, ' Deriving terrestrial cloud top pressure from photopolarimetry of reflected light ', Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 64, pp. 173-199 . https://doi.org/10.1016/S0022-4073(98)00135-6
Knibbe, W J J, de Haan, J F, Hovenier, J W, Stam, D M, Koelemeijer, R B A & Stammes, P 2000, ' Deriving terrestrial cloud top pressure from photopolarimetry of reflected light ', Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 64, pp. 173-199 . https://doi.org/10.1016/S0022-4073(98)00135-6
The linear polarization of sunlight reflected by cloudy areas on Earth is sensitive to the cloud top pressure as a result of molecular scattering above the clouds. We consider the derivation of cloud top pressures using polarimetric data from satelli
Publikováno v:
Knibbe, W J J, de Haan, J F, Hovenier, J W & Travis, L D 1998, ' Analysis of temporal variations of the polarization of Venus observed by Pioneer Venus orbiter. ', Journal of Geophysical Research, vol. 103, no. E4, pp. 8557-8574 . https://doi.org/10.1029/97JE03558
Journal of Geophysical Research, 103(E4), 8557-8574. American Geophysical Union
Journal of Geophysical Research, 103(E4), 8557-8574. American Geophysical Union
Time variations of the disk-averaged polarization of Venus at wave- lengths of 270, 365, 550, and 935 nm have been analyzed in terms of average haze optical thickness, cloud-top pressure, and cloud absorption optical thickness at 270 nm (presumably d
Publikováno v:
Journal of Geophysical Research. Planets, 102, 10945-10957. American Geophysical Union
Knibbe, W J J, de Haan, J F, Hovenier, J W & Travis, L D 1997, ' A biwavelength analysis of Pioneer Venus Polarization Observations. ', Journal of Geophysical Research. Planets, vol. 102, pp. 10945-10957 . https://doi.org/10.1029/97JE00312
Knibbe, W J J, de Haan, J F, Hovenier, J W & Travis, L D 1997, ' A biwavelength analysis of Pioneer Venus Polarization Observations. ', Journal of Geophysical Research. Planets, vol. 102, pp. 10945-10957 . https://doi.org/10.1029/97JE00312
A new method for analyzing Pioneer Venus polarimetry data on a pixel-wise basis is presented. Quasi-simultaneous observations at two wavelengths (550 and 935 nm) are combined and compared with results of multiple scattering calculations. In this mann
Publikováno v:
Applied optics. 33(21)
We consider two topics pertaining to light scattering by circular cylinders. (A) Scattering properties of cylinders with increasing aspect ratio are studied. It is shown that the solution for finite cylinders does not converge to the solution for inf
Autor:
Johan F. de Haan, Kari Lumme, Wim Vassen, Juho-Pertti Jalava, Joop W. Hovenier, Hester Volten
Publikováno v:
Volten, H, Jalava, J-P, Lumme, K, de Haan, J F, Vassen, W & Hovenier, J W 1999, ' Laboratory measurements and T-matrix calculations of the scattering matrix of rutile particles in water ', Applied Optics, vol. 38, no. 24, pp. 5232-5240 . https://doi.org/10.1364/AO.38.005232
Applied Optics, 38, 5232-5240. The Optical Society
Applied Optics, 38(24), 5232-5240. The Optical Society
Applied Optics, 38, 5232-5240. The Optical Society
Applied Optics, 38(24), 5232-5240. The Optical Society
We present experimentally determined scattering matrix elements of birefringent rutile particles in water as a function of the scattering angle for a wavelength of 633 nm (in air). These elements are compared with the results of T-matrix calculations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d096fe053650d666bead85b33931840
https://research.vu.nl/ws/files/1563862/123097.pdf
https://research.vu.nl/ws/files/1563862/123097.pdf
Angular scattering functions of algae and silt: an analysis of backscattering to scattering fraction
Publikováno v:
SPIE Proceedings.
In order to obtain more information on the angular scattering behavior of algae and silt research was initiated to determine whether or not the volume scattering functions by Petzold of the San Diego Harbor are appropriate for use in other types of t
Publikováno v:
Atmospheric Sensing and Modeling II.
The influence of the top altitude of terrestrial liquid water clouds on the polarization of sunlight reflected by a cloudy atmosphere is theoretically investigated. It is compared to the influences of other cloud properties and of stratospheric aeros