Zobrazeno 1 - 10
of 69
pro vyhledávání: '"K. Drdla"'
Publikováno v:
Annales Geophysicae, Vol 30, Pp 1055-1073 (2012)
Low stratospheric temperatures are known to be responsible for heterogeneous chlorine activation that leads to polar ozone depletion. Here, we discuss the temperature threshold below which substantial chlorine activation occurs. We suggest that
Externí odkaz:
https://doaj.org/article/e2d563c5f93046c1be4840642a2b3f75
Publikováno v:
Atmospheric Chemistry and Physics, Vol 3, Iss 4, Pp 987-997 (2003)
The mechanism of ice nucleation to form Type 2 PSCs is important for controlling the ice particle size and hence the possible dehydration in the polar winter stratosphere. This paper probes heterogeneous ice nucleation on sulfuric acid tetrahydrate (
Externí odkaz:
https://doaj.org/article/0045e493e2164561a45e010658a077cb
Autor:
K. Drdla, Rolf Müller
Publikováno v:
Annales Geophysicae, Vol 30, Pp 1055-1073 (2012)
Annales geophysicae 30, 1055-1073 (2012). doi:10.5194/angeo-30-1055-2012
Annales geophysicae 30, 1055-1073 (2012). doi:10.5194/angeo-30-1055-2012
Low stratospheric temperatures are known to be responsible for heterogeneous chlorine activation that leads to polar ozone depletion. Here, we discuss the temperature threshold below which substantial chlorine activation occurs. We suggest that the o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00a5efbaefb898ee74ccebde4c1b826f
https://www.ann-geophys.net/30/1055/2012/
https://www.ann-geophys.net/30/1055/2012/
Publikováno v:
Atmospheric Chemistry and Physics. 3:987-997
The mechanism of ice nucleation to form Type 2 PSCs is important for controlling the ice particle size and hence the possible dehydration in the polar winter stratosphere. This paper probes heterogeneous ice nucleation on sulfuric acid tetrahydrate (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e175f206f756b3199a1f3b5d5c83896
https://doi.org/10.5194/acp-3-987-2003
https://doi.org/10.5194/acp-3-987-2003
Publikováno v:
Proceedings of the National Academy of Sciences. 99:2609-2612
Optical depth records indicate that volcanic aerosols from major eruptions often produce clouds that have greater surface area than typical Arctic polar stratospheric clouds (PSCs). A trajectory cloud–chemistry model is used to study how volcanic a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::567e289a0dcfeb1a2711ec83581d3768
https://doi.org/10.1073/pnas.052518199
https://doi.org/10.1073/pnas.052518199
Publikováno v:
Science. 291:2591-2594
Homogeneous freezing of nitric acid hydrate particles can produce a polar freezing belt in either hemisphere that can cause denitrification. Computed denitrification profiles for one Antarctic and two Arctic cold winters are presented. The vertical r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5000c259e5942d60db733e847de11e48
https://doi.org/10.1126/science.1057228
https://doi.org/10.1126/science.1057228
Publikováno v:
Journal of Geophysical Research: Atmospheres. 104:26737-26751
Observations of high NO x /NO y ratios (overall 40% larger than modelled values) during the Polar Ozone Loss in the Arctic Region in Summer campaign have led us to re-examine the heterogeneous chemistry of stratospheric aerosol particles during the p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::432246e05833173ca73c3f204637fdbd
https://doi.org/10.1029/1999jd900406
https://doi.org/10.1029/1999jd900406
Autor:
K. Drdla, Max Loewenstein, P. T. Bui, Anthony W. Strawa, Ru-Shan Gao, M. Yasuda, Ronald C. Cohen, Rudolf F. Pueschel, Ross J. Salawitch, S. D. Howard, Katherine K. Perkins, James W. Elkins, Sunita Verma, Guy V. Ferry
Publikováno v:
Journal of Geophysical Research: Atmospheres. 104:26753-26766
This paper describes recent measurements of carbonaceous aerosol made by wire impactors during the Photochemistry Ozone Loss in the Arctic Region in Summer (POLARIS) campaign and assesses their role in stratospheric photochemistry. Ninety-five percen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffc95f6acef935bc334406f2df6b7037
https://doi.org/10.1029/1999jd900453
https://doi.org/10.1029/1999jd900453
Publikováno v:
Geophysical Research Letters. 26:287-290
The formation and development of polar stratospheric clouds are examined using a comprehensive microphysical model applied along air parcel trajectories. During Antarctic winter specific parcels are sampled over a time span of several days using exti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84f5d3e0dabb45dc2e85e7b72b2fd7f3
https://doi.org/10.1029/1998gl900324
https://doi.org/10.1029/1998gl900324
Autor:
L. A. Delnegro, James R. Podolske, James E. Dye, B. W. Gandrud, Azadeh Tabazadeh, K. S. Barr, Darrel Baumgardner, Haflidi Jonsson, David W. Fahey, K. R. Chan, Max Loewenstein, K. Drdla, James C. Wilson
Publikováno v:
Geophysical Research Letters. 23:1913-1916
Measured particle volumes in a type I polar stratospheric cloud near the Antarctic polar vortex during ASHOE/MAESA show that the onset of the cloud occurred near 193 K, 3 degrees colder than nitric acid trihydrate (NAT) saturation. The onset temperat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9b3ba1a3154784cb50644a3341c1384
https://doi.org/10.1029/96gl01812
https://doi.org/10.1029/96gl01812