Particle Formation by Ion Nucleation in the Upper Troposphere and Lower Stratosphere

Autor:	J. M. Reeves, Shan-Hu Lee, Thomas M. Miller, Leslie R. Lait, John O. Ballenthin, Donald E. Hunton, Albert A. Viggiano, James C. Wilson
Rok vydání:	2003
Předmět:	Troposphere Multidisciplinary Particle number Chemistry Ultrafine particle Nucleation Radiative transfer Particle Atmospheric sciences Stratosphere Physics::Atmospheric and Oceanic Physics Aerosol
Zdroj:	Science. 301:1886-1889
ISSN:	1095-9203 0036-8075
Popis:	Unexpectedly high concentrations of ultrafine particles were observed over a wide range of latitudes in the upper troposphere and lower stratosphere. Particle number concentrations and size distributions simulated by a numerical model of ion-induced nucleation, constrained by measured thermodynamic data and observed atmospheric key species, were consistent with the observations. These findings indicate that, at typical upper troposphere and lower stratosphere conditions, particles are formed by this nucleation process and grow to measurable sizes with sufficient sun exposure and low preexisting aerosol surface area. Ion-induced nucleation is thus a globally important source of aerosol particles, potentially affecting cloud formation and radiative transfer.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::480c32f53f7a84a48b774ff3c7926bcc https://doi.org/10.1126/science.1087236 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.