摘要
利用四川135个站自动与人工第2年平行观测气温资料,就自动与人工观测的气温的差异、引起差异的原因进行了分析。结果表明:气温各项目的自动观测比人工观测平均偏高,平均差值基本在0.2℃以内;气温、日最高、日最低的自动与人工观测比较,差值在±0.2℃之间的分别占58.71%、51.58%、62.68%,自动与人工观测值一致的分别占15.07%、12.16%、14.78%;自动与人工观测气温之间的对比差值存在明显的日变化,无明显的季节性和地域性差异;两种观测体制在观测时间上、观测方式上、测温传感器安装位置上,以及感应元件和测温原理的不同、仪器误差、热滞效应,都会造成观测结果出现差异。
Apply-ing the second year of Siehuan 135 stations＇ temperature information, which obsen,ed by automatic and manual in parallel, to analyze the temperature information differences, and the reasons for the differences. The parallel comparison observation resuhs indicated that the temperature observed by automatic was higher than that by manual way, and the variety of difterence was less than 0.2℃ o Comparing the daily average, daily maximum and minimum temperature observed by automatic way and by manual way,the differenee within ±0.2℃ respectively was 58.71% , 51.58% , 62.68% , and these concordanee rate respectively was 15.07% ,12. 16% ,14.78%. There was significant daily variation difference between manual and automated observation, while there was no considerable geographical and seasonal variation. The difference on obsmwation time, means of observation, air temperature probe install position, temperature measurement principle, give rise to the difference of observation.
出处
《高原山地气象研究》
2010年第1期45-49,共5页
Plateau and Mountain Meteorology Research
关键词
自动观测
人工观测
气温
差异分析
automatic, manual, temperature, difference analysis
