Spatiotemporal High-Resolution Cloud Mapping with a Ground-Based IR Scanner

Figure 5

(a) Evaluation for 5 July 2011, 09:50 UTC. Ellipse colours represent height, ETM+ true-colour composite as background image. The position of the NubiScope is marked with a green cross. Only ellipses which passed the cloud test are presented; cloudless sky ellipses are not shown. (b) Evaluation of classifications with Fmask as reference. For the purpose of visualization, the cloud ellipses detected by the NubiScope overlay the Landsat images.