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Overview of aerosol microphysics at Arctic sunrise: measurements during the NICE renoxification study Cover

Overview of aerosol microphysics at Arctic sunrise: measurements during the NICE renoxification study

Open Access
|Jan 2005

Abstract

Extensive aerosol and trace gas measurements were conducted at Ny-Ålesund (Svalbard) before and after Arctic sunrise in 2001 (NICE Dark and Light intensive campaigns) in order to study the possible role of aerosols in the renoxification mechanism. This study reports aerosol physical measurements over a continuous 3-month period. Arctic and sub-Arctic air masses dominated the measurement period and were characterized by low number (N~ 275 and 590 cm−3 respectively) and surface area (S~ 39 and 28 µm2 cm−3) concentrations (measured range d= 14–740 nm) except for two Arctic haze events with high concentrations in springtime (N~ 1140 cm−3 and ~ 125 µm2 cm−3). Excluding these events, aerosol volatility measurements indicated no significant variation in the volatile (~0.40), semi-volatile (~0.32) or refractory (~0.28) volume fractions which are commonly attributed to H2SO4, (NH4)2SO4/NH4HSO4and soot/dust/sea-salt aerosol.

Language: English
Page range: 40 - 50
Submitted on: Feb 24, 2004
Accepted on: May 11, 2005
Published on: Jan 1, 2005
Published by: Stockholm University Press
In partnership with: Paradigm Publishing Services

© 2005 S. Nyeki, G. Coulson, I. Colbeck, K. Eleftheriadis, U. Baltensperger, H. J. Beine, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.