Comparative Performance Analysis of Three Kinds of Sunshine Observation Equipment and Their Influencing Factors
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Abstract:
In this paper, the measuring results of three kinds of equipment for sunshine are analyzed by using the data collected by the direct radiation sensors, FSRZ1 sunshine recorder, and DarkTube sunshine recorder from August to December in 2016The results show that: the absolute deviation and relative deviation are obviously higher on fog and haze days than those on nonfog and haze days between any two of three. The sunshine measurements from the automatic tracking direct radiation sensor are higher than those of the other two, and the measurements of the FSRZ1 sunshine recorder are lower than those of the DarkTube sunshine recorder. On nonfog and haze days, the measured values of the FSRZ1 sunshine recorder are lower than the other two, and the measurements of the DarkTube sunshine recorder are higher than those of the automatic tracking direct radiation sensor. The measurements of the Dark tube sunshine are higher or lower because of the sunshine paper problem in production. The FSRZ1 sunshine recorder is affected by cloudy weather and the measurements are lower. The measurement method of the automatic tracking direct radiation sensor is the closest to the WMO definition of sunshine duration, but in case of mechanical tracking deviation, the measurements are lower.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.