Apogee Instruments SP-110 소유자 매뉴얼 - 페이지 15
{카테고리_이름} Apogee Instruments SP-110에 대한 소유자 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Apogee Instruments SP-110 20 페이지. Pyranometer
Apogee Instruments SP-110에 대해서도 마찬가지입니다: 소유자 매뉴얼 (18 페이지)
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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
Operation of Heater (SP-230)
Apogee model SP-230 pyranometers have an internal heater to allow for sensor heating during precipitation
events or under conditions of dew, frost, and snow deposition. The heater is designed to keep the water (liquid
and frozen) off the diffuser, though it does not need to be used in order to make measurements of shortwave
radiation. However, if the diffuser has water on the surface, errors can result. Continuously powering the heater
under conditions that do not require heating will not damage the sensor or influence measurements.
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