Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Iuri Mateshvili"'
Autor:
Nina Mateshvili, Iuri Mateshvili, Noel Baker, Antonin Berthelot, Christine Bingen, Emmanuel Dekemper, Philippe Demoulin, Ghislain Franssens, Didier Fussen, Erkki Kyrölä, Tamar Paatashvili, Didier Pieroux, Filip Vanhellemont
Narrow field-of view spectral measurements of twilight sky brightness as a function of solar zenith angle in the 89°-95° range allow to retrieve lower stratospheric and tropospheric aerosol extinction profiles. The measurements were carried out ove
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::524422e18fcaf90189018ea73b53feca
https://doi.org/10.5194/egusphere-egu23-13861
https://doi.org/10.5194/egusphere-egu23-13861
Autor:
Charles Robert, Didier Fussen, Erkki Kyrölä, Filip Vanhellemont, Tamar Paatashvili, Iuri Mateshvili, Nina Mateshvili, Emmanuel Dekemper, Christine Bingen
Twilight sky brightness spectral measurements are an inexpensive and effective way to observe enhancements of stratospheric aerosols. In this work, we present our observations of the volcanic cloud produced by the eruption of Raikoke volcano (Kuril I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29e01e740c369976062d8c0640758d84
https://doi.org/10.5194/egusphere-egu21-5223
https://doi.org/10.5194/egusphere-egu21-5223
Autor:
Emmanuel Dekemper, Iuri Mateshvili, Nina Mateshvili, Erkki Kyrölä, Tamar Paatashvili, Filip Vanhellemont, Charles Robert, Didier Fussen, Christine Bingen
Raikoke volcano (Kuril Islands, Russia) eruption on 21 June 2019 sent an ash plume at 10-13 km altitude, which is higher than the local tropopause. Volcanic aerosols were transported around the globe, causing spectacular purple twilights. We will pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e75d6b361db346ab90fcac85d4eb0ec8
https://doi.org/10.5194/egusphere-egu2020-7548
https://doi.org/10.5194/egusphere-egu2020-7548
Publikováno v:
Meteoritics & Planetary Science. 34:969-973
— Photometric observations of the twilight sky were carried out during Leonids 1998. The obtained vertical distributions of aerosol between 20 and 140 km demonstrate the processes of the intrusion of fine meteor dust and its subsequent intra-atmosp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee091b63fd22849e5b3a33b199bc125d
https://doi.org/10.1111/j.1945-5100.1999.tb01415.x
https://doi.org/10.1111/j.1945-5100.1999.tb01415.x
Publikováno v:
Journal of Aerosol Science. 29:1189-1198
Vertical variations of optical characteristics of atmospheric aerosol (air turbidities and logarithmic gradients of intensities) at altitudes between 20 and 150 km were obtained by twilight photometry carried out between 1942 and 1993 at the Abastuma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8776e5e3e645929b734c0f49cdac84ad
https://doi.org/10.1016/s0021-8502(98)00068-8
https://doi.org/10.1016/s0021-8502(98)00068-8
Autor:
Emmanuel Dekemper, Erkki Kyrölä, Simo Tukiainen, C. Tétard, Jukka Kujanpää, G. G. Mateshvili, Christine Bingen, Iuri Mateshvili, Didier Fussen, Filip Vanhellemont, Charles Robert, N. Mateshvili
Publikováno v:
Atmospheric Measurement Techniques, Vol 6, Iss 10, Pp 2563-2576 (2013)
Ground-based spectral measurements of twilight sky brightness were carried out between October 2009 and August 2011 in Georgia, South Caucasus. The algorithm which allowed to retrieve the lower stratospheric and upper tropospheric aerosol extinction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2049db9c38d35aa6a04e257ca0459cc
https://doi.org/10.5194/amtd-6-4401-2013
https://doi.org/10.5194/amtd-6-4401-2013
Autor:
Erkki Kyrölä, Filip Vanhellemont, Didier Fussen, G. G. Mateshvili, Iuri Mateshvili, Nina Mateshvili, Christine Bingen
Publikováno v:
Journal of Geophysical Research. 110
[1] In this paper we demonstrate how twilight sky brightness measurements can be used to obtain information about stratospheric aerosols. Beside this, the measurements of the distribution and the variability of the twilight sky brightness may help to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eec81dddcbc5dead6bcb8eca0328adc3
https://doi.org/10.1029/2004jd005512
https://doi.org/10.1029/2004jd005512
Publikováno v:
Leonid Storm Research ISBN: 9789048156245
November twilight sounding experiments carried out in the Abastumani Astrophysical Observatory including the Leonid showers of 1998 and 1999 provided an opportunity to obtain height distributions of dust of meteoric origin between 20 km to 140 km alt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fa844bc36c4b9c00824c892646d4a81
https://doi.org/10.1007/978-94-017-2071-7_35
https://doi.org/10.1007/978-94-017-2071-7_35
Publikováno v:
Geophysical Research Abstracts; 2011, Vol. 13, p1-13047, 13047p
Publikováno v:
Meteoritics & Planetary Science; Nov1999, Vol. 34 Issue 6, p969-973, 5p