Universität zu Köln

Zhang, J., Shao, Y. and Huang, N. (2014). Measurements of dust deposition velocity in a wind-tunnel experiment. Atmos. Chem. Phys., 14 (17). S. 8869 - 8883. GOTTINGEN: COPERNICUS GESELLSCHAFT MBH. ISSN 1680-7324

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Abstract

In this study, we present the results of a wind-tunnel experiment on dust deposition. A new method is proposed to derive dust deposition velocity from PDA (particle dynamics analysis) particle-velocity and particle-size measurements. This method has the advantage that the motions of individual dust particles are directly observed and all relevant data for computing dust deposition velocity is collected using a single instrument, and thus the measurement uncertainties are reduced. The method is used in the wind-tunnel experiment to measure dust deposition velocities for different particle sizes, wind speeds and surface conditions. For sticky-smooth wood and water surfaces, the observed dust deposition velocities are compared with the predictions using a dust deposition scheme, and the entire data set is compared with the data found in the literature. From the wind-tunnel experiments, a relatively reliable data set of dust deposition velocities is obtained, which is valuable for the development and validation of dust deposition schemes.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Zhang, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Shao, Y. UNSPECIFIED UNSPECIFIED UNSPECIFIED Huang, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-449624
DOI:	10.5194/acp-14-8869-2014
Journal or Publication Title:	Atmos. Chem. Phys.
Volume:	14
Number:	17
Page Range:	S. 8869 - 8883
Date:	2014
Publisher:	COPERNICUS GESELLSCHAFT MBH
Place of Publication:	GOTTINGEN
ISSN:	1680-7324
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PARTICLE DEPOSITION; DRY DEPOSITION; DECIDUOUS FOREST; EMISSION SCHEME; FLUXES; EROSION; MODEL; DISTRIBUTIONS; PREDICTIONS; CALIBRATION Multiple languages Environmental Sciences; Meteorology & Atmospheric Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/44962