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Minimizing Systematic Errors in Cloud Fraction Estimates from Spaceborne Cloud Radars
Journal of Atmospheric and Oceanic Technology
In order to detect weakly reflecting clouds, radar pulse returns are often averaged over a considerable time to increase the probability of the sample volume being registered as cloudy. However, if the sample volume is registered as cloudy, it may not be completely cloud filled. Hence, equating the observed cloud fraction to the fraction of sample volumes that are registered as cloudy may underestimate or overestimate the actual cloud fraction. A published cloud detection criterion (␥ observeddoi:10.1175/1520-0426(2003)20<707:mseicf>2.0.co;2 fatcat:dxmsk7b7bjdjhfalmg5hv7q2nq