- ページ 16

計測機器 Apogee Instruments PYRANOMETER SP-421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 PYRANOMETER SP-421 18 ページ。

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