摘要
文章从传感器设计原理及数据处理算法等方面介绍了一种利用光电管原理测量日照时数的数字日照计,并在辽宁喀左和云南丽江开展对比观测试验。通过对数字日照计、直接辐射表及暗筒式日照计进行平行比对分析,比较了几种测量方式之间观测结果的差异。试验结果表明:基于光电原理的数字日照计能够连续、自动、准确地获取日照时数,而业务上使用的暗筒式日照计的测量结果明显偏高。
A digital sunshine recorder based on the photoelectric principle is described from aspects of the sensor measurement principle and data processing algorithm,which participated in the sunshine duration contrast observational experiments between stations such as Kazuo(Liaoning Province)and Lijiang(Yunnan Province).Through parallel comparison and analysis of digital sunshine recorder,pyrheliometer and dark-tube sunshine recorder,the difference of observation results between several measurement modes was analyzed.The results show that digital sunshine recorder can continuously,automatically and accurately obtain sunshine duration,while dark-tube sunshine recorder has higher measurement results.
作者
胡树贞
莫月琴
丁蕾
王志成
Hu Shuzhen;Mo Yueqin;Ding Lei;Wang Zhicheng(Meteorological Observation Centre of CMA,Beijing 100081)
出处
《气象水文海洋仪器》
2019年第4期23-28,共6页
Meteorological,Hydrological and Marine Instruments
基金
公益性行业(气象)科研专项(GYHY200906033)资助
关键词
数字日照计
日照时数
准确性
比对分析
digital sunshine recorder
sunshine duration
accuracy
comparison analysis
