摘要
为进一步了解不同雨量观测方式对降水测量的影响,在中国气象局大气探测试验基地进行了几种雨量观测方式的比对试验。本文利用该试验的观测资料,分析了不同雨量计及其不同安装方式对降水测量的影响,并分别给出了各雨量计的测量值。结果表明:降水测量与雨量计的安装方式极其相关,坑式安装测量的雨量值最大,其余依次为双栅、防风圈和平地安装(呈水口高出地面70cm);当前业务观测方式测得的降雨量偏小;降雪测量受风场的影响比液态降水测量更显著。
In order to study the influence of observation methods on precipitation measurements,several gauges and installation modes were used for experimental contrast in the atmospheric sounding test-bed of CMAMOC.In this paper,we analyzed the different rain gauges and their influences of observation methods on rainfall measurements by using the experiment data,and gave the precipitation measurements of rain gauges.Result shows that the measuremens are highly relevant to gauge installation modes:the pit gauge recorded the maximum precipitation,followed by the records from the double-fence gauge,Tretyakov gauge,and normal-installation gauge(the receiver is 70 cm above the ground).Result also shows that the current operational records by the normal-installation gauge are slightly under the truth.Compared with rainfall measurements,snowfall measuremens are more susceptible to winds.
出处
《气象科技》
北大核心
2017年第2期228-233,共6页
Meteorological Science and Technology
基金
中国气象局大气探测重点开放实验室开放课题(KLAS201401)"自动气候站集成关键技术"资助
关键词
雨量计
安装方式
比对试验
rain gauge
installation method
comparative experiment
