A method for cloud detection and opacity classification based on ground based sky imagery

Digital images of the sky obtained using a total sky imager (TSI) are classified pixel by pixel into clear sky, optically thin and optically thick clouds. A new classification algorithm was developed that compares the pixel red-blue ratio (RBR) to the RBR of a clear sky library (CSL) generated from...

Full description

Bibliographic Details
Main Authors: M. S. Ghonima, B. Urquhart, C. W. Chow, J. E. Shields, A. Cazorla, J. Kleissl
Format: Article
Language:English
Published: Copernicus Publications 2012-11-01
Series:Atmospheric Measurement Techniques
Online Access:http://www.atmos-meas-tech.net/5/2881/2012/amt-5-2881-2012.pdf