Change search
ReferencesLink to record
Permanent link

Direct link
In-situ measurement of smoke particles in the wintertime polar mesosphere between 80 and 85 km altitude
Show others and affiliations
2008 (English)In: Journal of Atmospheric and Solar-Terrestrial Physics, Vol. 70, 61-70 p.Article in journal (Refereed) Published
Abstract [en]

The MAGIC sounding rocket, launched in January 2005 into the polar mesosphere, carried two detectors for charged aerosol particles. The detectors are graphite patch collectors mounted flush with the skin of the payload and are connected to sensitive electrometers. The measured signal is the net current deposited on the detectors by heavy aerosol particles. The collection of electrons and ions is prevented by magnetic shielding and a small positive bias, respectively. Both instruments detected a layer of heavy aerosol particles between 80 and 85 km with a number density approximately 103 cm−3. Aerodynamic flow simulations imply that the collected particles are larger than 1 nm in radius. The particles are detected as a net positive charge deposited on the graphite collectors. It is suggested that the measured positive polarity is due to the electrification of the smoke particles upon impact on the graphite collectors.

Place, publisher, year, edition, pages
2008. Vol. 70, 61-70 p.
URN: urn:nbn:se:su:diva-11385DOI: doi:10.1016/j.jastp.2007.09.013ISI: 000253068000005OAI: diva2:177904
Available from: 2009-01-13 Created: 2009-01-13 Last updated: 2011-01-10Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Gumbel, Jörg
By organisation
Department of Meteorology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 42 hits
ReferencesLink to record
Permanent link

Direct link