Large nitric acid particles at the top of an Arctic stratospheric cloud

Autor: Joëlle Ovarlez, Francesco Cairo, K. H. Fricke, Andreas Dörnbrack, Alberto Adriani, Guido Di Donfrancesco, Christoph Weissner, Ulrich Blum, Henri Ovarlez, Jochen Schreiner, Konrad Mauersberger, Terry Deshler, Niels Larsen
Přispěvatelé: Laboratoire de Météorologie Dynamique (UMR 8539) (LMD), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)
Rok vydání: 2003
Předmět:
Atmospheric Composition and Structure: Middle atmosphere-composition and chemistry
Atmospheric Science
Soil Science
Aquatic Science
Oceanography
Atmospheric sciences
Atmosphere
in situ stratospheric clouds measurements
large polar stratospheric cloud particles
Geochemistry and Petrology
Earth and Planetary Sciences (miscellaneous)
Earth Science
Artic stratospheric clouds
Stratosphere
Astrophysics::Galaxy Astrophysics
Physics::Atmospheric and Oceanic Physics
Earth-Surface Processes
Water Science and Technology
balloon-borne aerosol measurements
Ecology
polar stratospheric clouds composition
Cloud top
Arctic stratospheric clouds
Astrophysics::Instrumentation and Methods for Astrophysics
Paleontology
Cloud physics
Forestry
polar stratospheric cloud composition
Atmospheric Composition and Structure: Cloud physics and chemistry
in situ stratospheric cloud measurements
Aerosol
polar stratospheric clouds
Geophysics
Lidar
Arctic
[SDU]Sciences of the Universe [physics]
Space and Planetary Science
Polar
Astrophysics::Earth and Planetary Astrophysics
Zdroj: Journal of Geophysical Research
Journal of Geophysical Research, 2003, 108, ⟨10.1029/2003JD003479⟩
Scopus-Elsevier
ISSN: 0148-0227
DOI: 10.1029/2003jd003479
Popis: International audience; In early December 2001, balloon-borne in situ measurements of particle composition, size, number, phase, and backscatter were completed in an Arctic stratospheric cloud composed of three distinct layers between 22 and 26 km. Below 24.5 km, liquid solution droplets of water, nitric acid, and sulfuric acid and a thin ice layer were observed. Above this layer the particles were primarily solid nitric acid trihydrate. Just above 26 km, at cloud top, where temperatures were near or above the equilibrium temperature for nitric acid trihydrate, there was a thin layer of solid particles narrowly distributed around a radius of 2.0 μm at concentrations of -3. Lidar backscatter and particle phase measurements approximately 200 km upwind of the in situ measurements indicate a similar vertical structure for the cloud. These in situ measurements represent, to our knowledge, the most comprehensive in situ observations of all phases of polar stratospheric cloud particles, while the large particles at cloud top have not been previously observed and may have implications for producing particles large enough to remove reactive nitrogen from the polar stratosphere.
Databáze: OpenAIRE
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