Abstract
The Vegetation Science Team of the EarthEnvironment Observation Committee, which is organized by the National Space Development Agency, executed an airborne sensor study using a Multispectral Scan-ner (MSS) in the summer of 1993. The primary objective of the study was the evaluation of the effects by ground resolution, sun illumination conditions, and observation angle on forest biomass estimations using MSS data. The objective, its correlative background, and the study, including ground survey, are described in this report. Because reflectance factors are becoming more important as physical values, a method of making reflectance factor estimations using ground objects was examined. Reflectance factors of dense spruce (Picea sp.), larch (Larix sp.), and broadleaved forests were estimated using MSS data. The forest reflectance factors agreed well with other measurements obtained from helicopter flights as reported elsewhere, and thus the method to estimate forest reflectance using MSS data was verified.
