MODELLING THE RELATIONSHIP BETWEEN LIQUID WATER CONTENT AND CLOUD DROPLET NUMBER CONCENTRATION OBSERVED IN SOME LOW CLOUDS IN THE SUMMER ARCTIC AND ITS RADIATIVE EFFECTS

We investigated the microphysical properties of some low Arctic clouds and attempted to simulate the observed linear relationship between liquid water content and cloud droplet number concentration. The low clouds were observed by an aircraft campaign based out of Resolute Bay conducted as a part of...

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Bibliographic Details
Main Author: Dionne, Joelle
Other Authors: Department of Physics & Atmospheric Science, Master of Science, n/a, Theodore L. Monchesky, Glen Lesins, Randall Martin, Rachel Chang, Ian Folkins, Not Applicable
Language:English
Published: 2019
Subjects:
Atmospheric Science
Arctic
Cloud
Liquid Water Content
Cloud Droplet Number Concentration
Resolute Bay
Online Access:http://hdl.handle.net/10222/76693
Description
Summary:We investigated the microphysical properties of some low Arctic clouds and attempted to simulate the observed linear relationship between liquid water content and cloud droplet number concentration. The low clouds were observed by an aircraft campaign based out of Resolute Bay conducted as a part of NETCARE in July 2014. We attempted to simulate this relationship using the Single Column Model for Arctic Boundary Layer Clouds (SCM-ABLC), and compared the radiative effect of the modelled and observed clouds using a single-column version of the radiative transfer model used in version 18 of the Canadian Atmospheric Model (CanAM4.3). The relationship was reasonably represented by the SCM-ABLC, and all three autoconversion parameterizations tested agreed with the radiative transfer calculated from observations.

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