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Polar Stratospheric Clouds Satellite Observations, Processes, and Role in Ozone Depletion

Tritscher, I.; Pitts, M. C.; Poole, L. R.; Alexander, S. P.; Cairo, F.; Chipperfield, M. P.; Grooß, J.-U.; Höpfner, M. ORCID iD icon 1; Lambert, A.; Luo, B. P.; Molleker, S.; Orr, A.; Salawitch, R.; Snels, M.; Spang, R.; Woiwode, W. 1; Peter, T.
1 Institut für Meteorologie und Klimaforschung (IMK), Karlsruher Institut für Technologie (KIT)

Abstract:

Polar stratospheric clouds (PSCs) play important roles in stratospheric ozone depletion during winter and spring at high latitudes (e.g., the Antarctic ozone hole). PSC particles provide sites for heterogeneous reactions that convert stable chlorine reservoir species to radicals that destroy ozone catalytically. PSCs also prolong ozone depletion by delaying chlorine deactivation through the removal of gas-phase HNO$_{3}$ and H$_{2}$O by sedimentation of large nitric acid trihydrate (NAT) and ice particles. Contemporary observations by the spaceborne instruments Michelson Interferometer for Passive Atmospheric Sounding (MIPAS), Microwave Limb Sounder (MLS), and Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) have provided an unprecedented polar vortex-wide climatological view of PSC occurrence and composition in both hemispheres. These data have spurred advances in our understanding of PSC formation and related dynamical processes, especially the firm evidence of widespread heterogeneous nucleation of both NAT and ice PSC particles, perhaps on nuclei of meteoritic origin. Heterogeneous chlorine activation appears to be well understood. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000133401
Veröffentlicht am 10.09.2021
Originalveröffentlichung
DOI: 10.1029/2020RG000702
Scopus
Zitationen: 46
Web of Science
Zitationen: 38
Dimensions
Zitationen: 72
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 06.2021
Sprache Englisch
Identifikator ISSN: 8755-1209, 1944-9208
KITopen-ID: 1000133401
HGF-Programm 12.11.25 (POF IV, LK 01) Atmospheric composition and circulation changes
Erschienen in Reviews of geophysics
Verlag John Wiley and Sons
Band 59
Heft 2
Seiten e2020RG000702
Vorab online veröffentlicht am 04.04.2021
Nachgewiesen in Web of Science
Dimensions
Scopus
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