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Airborne Precipitation and Cloud Sampling Techniques (Abstract)

Published online by Cambridge University Press:  20 January 2017

P.I. Joe ,
R.S. Schemenauer ,
J.W. Strapp  and
P. Daum
P.I. Joe
Affiliation:
Cloud Physics Research Division, Atmospheric Environment Service, 4905 Dufferin St., Downsview, Ontario M3H 5T4, Canada
R.S. Schemenauer
Affiliation:
Cloud Physics Research Division, Atmospheric Environment Service, 4905 Dufferin St., Downsview, Ontario M3H 5T4, Canada
J.W. Strapp
Affiliation:
Cloud Physics Research Division, Atmospheric Environment Service, 4905 Dufferin St., Downsview, Ontario M3H 5T4, Canada
P. Daum
Affiliation:
Environmental Chemistry Division, Brookhaven National Laboratory, Building 426, Upton, Long Island, New York 11973, U.S.A.
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Abstract

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Techniques have been developed for the airborne bulk sampling of cloud and precipitation, including snow, for later chemical analysis. The techniques include the use of cyclones, meshes, riming rods, scoops and slotted collectors. The role of sampling location on the aircraft, flying attitude, collection efficiency, and sampling procedures for clean samples and mixed clouds with respect to the design and performance of the collectors will be discussed. The polyethylene meshes, with thread diameters of 545 and 345 microns, and the riming rods, with diameter of 1.0 cm, collect supercooled droplets with different efficiencies and can be used to examine the dependence of chemistry on the droplet size. Airborne snow samples were collected for the first time, with the cyclone being the most effective collector.

Type
Abstract
Information
Annals of Glaciology , Volume 7 , 1985 , pp. 130
Copyright
Copyright © International Glaciological Society 1985