Accessibility navigation


Observations of Saharan dust layer electrification

Downloads

Downloads per month over past year

Nicoll, K. A., Harrison, R. G. and Ulanowski, Z. (2011) Observations of Saharan dust layer electrification. Environmental Research Letters, 6 (1). 014001. ISSN 1748-9326

[img] Text - Published Version
· Please see our End User Agreement before downloading.

797Kb

To link to this article DOI: 10.1088/1748-9326/6/1/014001

Abstract/Summary

Electrification of atmospheric dust influences the coagulation, wet removal and fall speeds of dust particles. Alignment of dust particles can also occur in fair weather atmospheric electrical conditions if the particles are charged. However, very few electrical measurements made in elevated dust layers exist. Balloon-borne charge and particle instrumentation have been used to investigate the electrical properties of elevated Saharan dust layers. Soundings from the Cape Verde Islands, which experience frequent Saharan dust outbreaks, intercepted several dust layers. Two balloon soundings during summer 2009 detected dust particles in layers up to 4 km altitude. Simultaneous electrical measurements showed charge inside the dust layers, with a maximum measured charge density of 25 pC m − 3, sufficient to influence wet removal processes.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Science > School of Mathematical and Physical Sciences > Department of Meteorology
ID Code:18651
Publisher:Institute of Physics

Download Statistics for this item.

Centaur Editors: Update this record

Page navigation