Shortwave Reflectance Properties of Arctic Tundra Landscapes
Studies of shortwave reflectance properties fall into two broad categories: (1) those dealing with the total broad band reflectance (albedo) and (2) those concerned with spectral reflectance characteristics of terrestrial surfaces. Despite the importance of shortwave radiation as the primary energy source for most physical and biological processes, information regarding the shortwave reflective properties of Arctic landscapes is scarce. Albedo is a key variable affecting the surface energy balance (Chap. 6, this Vol.), whereas spectral reflectance may be used to infer biophysical quantities such as biomass or vegetation composition (Chap. 18, this Vol.). Spectral radiances also constitute the basic data used in classical remote sensing studies (e.g., land cover classification) (Stow et al. 1989; Walsh and Davis 1994).
KeywordsBiomass Dust Acidity Photosynthesis Remote Sensor
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