ALBEDO ESTIMATION FROM AERIAL IMAGES TAKEN BY A MULTISPECTRAL CAMERA AND ITS VERIFICATION

Abstract

 Roof albedo data of individual buildings are necessary to improve the accuracy of weather simulations. In this study, a multispectral camera capable of 5-band measurements was mounted on a helicopter, and albedo was estimated from the obtained aerial images. For comparison, albedo estimation was also applied for 16-band WorldView-3 images. As a result, detailed roof albedo data was successfully obtained from the aerial images, but had a tendency to be lower than albedo data from WorldView-3. This is probably attributed to the smaller number of observation bands of the camera and the influence of shadows from the taller buildings as the images were taken in winter.