2000 年 20 巻 3 号 p. 271-284
Measurement of atmosphere and surface optical properties were undertaken using photo-polarimeter and sun-photometer. The atmospheric observations were performed over Railroad valley (38°32'N, 115°44'W), Nevada (USA), where the altitude is 1432 m and Ivanpah playa, California (35°32'N, 115°24'W), where the altitude is 794 m, in wavelengths from 400 nm to 1000 nm. Sun-photometer indicated atmospheric aerosols of small size. The skylight polarization decreases with increasing the elevation of the sun, whereas the surface reflectance parameter increases. A change of skylight polarization with solar elevation is smaller than that of simulated results. A combined use of these radiometers would provide a useful information on atmospheric aerosol characteristics.