| 摘要: |
| 该文利用石阡国家气象站2019年1—12月DFC1型光电式数字日照计（简称自动观测）和暗筒式日照计观测（简称人工观测）的日照资料，对比分析时、日、月、年日照时数的差异，结果表明：自动观测与人工观测的日、月日照时数相关系数均在0.98以上，有非常好的相关性；自动观测年日照时数低于人工观测值，自动观测有日照天数和早、晚日照时数明显多于人工观测值，自动观测比人工观测分辨率更高和灵敏度更好，更客观反映日照变化情况。 |
| 关键词: 日照；自动观测；人工观测 |
| DOI： |
| 投稿时间：2020-08-06 |
| 基金项目: |
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| Comparison and Analysis of Sunshine Duration between DFC1 Photoelectric Digital Sunshine Recorder and Dark-tube Sunshine Recorder |
| LANG Guiying,AN Chengde,YUAN Qing |
| (Sinan County Meteorological Bureau,Sinan 565100 ,China;Shiqian County Meteorological Bureau,Shiqian 555100 ,China) |
| Abstract: |
| This research made use of the data of sunshine duration by DFC1 photoelectric digital sunshine recorder in Shiqian national meteorological station from January to December, 2019（automatic observation for short）and dark-tube sunshine recorder（manual observation for short）to compare and analyze the difference of yearly,monthly,daily annual and hours’s data of sunshine duration. The results show that the correlation coefficients of daily, monthly of sunshine duration are all above 0.98, they are very highly correlated. The observed value about annual sunshine duration of automatic observation was lower than that of manual observation, the number of sunshine duration’s days and sunshine duration in morning and night of automatic observation were significantly higher than that of Manual Observation. Compared with manual observation, automatic observation has higher resolution and better sensitivity, and the automatic observation reflects the sunshine variation more objectively. |
| Key words: sunshine variation；automatic observation；manual observation |
