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計測機器 Apogee Instruments SP-214のPDF オーナーズマニュアルをオンラインで閲覧またはダウンロードできます。Apogee Instruments SP-214 19 ページ。 Pyranometer
Spectral Errors for Shortwave Radiation Measurements with Apogee SP Series Pyranometers
Radiation Source (Error Calculated Relative to Sun, Clear Sky)
Sun (Clear Sky)
Sun (Cloudy Sky)
Reflected from Grass Canopy
Reflected from Deciduous Canopy
Reflected from Conifer Canopy
Reflected from Agricultural Soil
Reflected from Forest Soil
Reflected from Desert Soil
Reflected from Water
Reflected from Ice
Reflected from Snow
Spectral error for Apogee SP series
pyranometers as a function of solar
zenith angle, assuming calibration at
a zenith angle of 45°.
Spectral error for Apogee SP series
pyranometers as a function of
atmospheric air mass, assuming
calibration at an air mass of 1.5.
Error [%]
0.0
9.6
14.6
16.0
19.2
-12.1
-4.1
3.0
6.6
0.3
13.7