Eddy correlation measurements of aerosol deposition to grass

Richard J. Vong; Dean Vickers; David S. Covert

doi:10.3402/tellusb.v56i2.16414

Eddy correlation measurements of aerosol deposition to grass

Tellus B: Chemical and Physical Meteorology

Volume 56 (2004): Issue 2

By: Richard J. Vong, Dean Vickers and David S. Covert

Open Access

|Jan 2004

Abstract

An experiment was conducted to measure aerosol turbulent fluxes to a grass field. A new high-flow-rate aerosol sensor was deployed from a tower to make eddy correlation (EC) measurements of aerosol turbulent flux and deposition velocity. The EC data were screened and analysed for uncertainties associated with advection, boundary layer growth, instrument separation and counting particles. An apparent bias in the aerosol flux due to particle hygroscopic growth was evaluated from chemical and microphysical measurements and removed from the results based on derived corrections. The resulting aerosol deposition velocity for 0.52 μm diameter particles depended on atmospheric stability with values of 0.3 cm s⁻¹ during near-neutral stability, 0.44 cm s⁻¹ during unstable periods and 0.16 cm s⁻¹ during stable periods with an estimated uncertainty of ±0.07 cm s⁻¹ due to chemical composition and particle counting.

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Articles in this issue

DOI: https://doi.org/10.3402/tellusb.v56i2.16414 | Journal eISSN: 1600-0889

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Language: English

Page range: 105 - 117

Submitted on: Jan 2, 2003

Accepted on: Dec 4, 2003

Published on: Jan 1, 2004

Published by: Stockholm University Press

In partnership with: Paradigm Publishing Services

© 2004 Richard J. Vong, Dean Vickers, David S. Covert, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 56 (2004): Issue 2