BNZ LTER: PYR measurements: hourly (1988 - Present)

The pyranometers measure the energy flux density of global sun plus sky radiation across a broad band from 280 to 2800 nm. The sensor consists of a silicon photodiode which does not have an equal spectral response across the band. However, this does not cause serious error for measurements of solar radiation, provided the spectral distribution is not altered, such as within plant canopies. Winter measurements may be inaccurate due to snow cover.

总辐射表（pyranometer）用于测量280至2800纳米宽波段范围内的全球太阳与天空辐射能流密度。该传感器由硅光电二极管（silicon photodiode）构成，其在该宽波段内的光谱响应并不均匀。不过，只要光谱分布未发生改变（例如在植物冠层内部场景下），该特性不会对太阳辐射的测量造成显著误差。冬季时，积雪覆盖会导致测量结果不准确。