Advanced Remote Sensing, 2nd Edition

Chapter 6

Broadband albedo

Abstract

Albedo is a key parameter that is widely used in land surface energy balance studies, mid-to-long-term weather prediction, and global climate change investigation. Remote sensing is an effective way to map the land surface albedo on both the regional and global scales. This chapter first presents the consideration of light incidence and reflection angles to the calculation of surface albedo. Then, the retrieval method of spectral albedo based on bidirectional reflectance models inversion and narrowband-to-broadband albedo conversion is discussed. The next section describes the direct-estimation approaches that retrieve surface broadband albedo directly from single-angle surface reflectance or top-of-atmosphere ...