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An Improved Cloud Classification Algorithm for China's FY-2C Multi-Channel Images Using Artificial Neural Network

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Executive Summary

The crowning objective of this research was to identify a better cloud classification method to upgrade the current window-based clustering algorithm used operationally for China's first operational geostationary meteorological satellite FengYun-2C (FY-2C) data. First, the capabilities of six widely-used Artificial Neural Network (ANN) methods are analyzed, together with the comparison of two other methods: Principal Component Analysis (PCA) and a Support Vector Machine (SVM), using 2864 cloud samples manually collected by meteorologists in June, July, and August in 2007 from three FY-2C channel (IR1, 10.3-11.3 ?m; IR2, 11.5-12.5 ?m and WV 6.3-7.6 ?m) imagery.

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