摘要
经过国内学者和WMO的评估,GTS1-2型探空仪需要进行技术改进以适应高空气象观测业务的发展需求。2012年,GTS1-2型探空仪在原体制基础上进行了技术改进(暂命名为GTS1-2A型)。2012年8月在阳江探空站开展比对试验,试验结果表明:GTS1-2A型探空仪夜间温度测量性能良好,系统误差在-0.3℃以内,标准偏差总体上在0.2℃左右;日间温度除探测中高层和出入云时外,系统误差整体上在-0.3℃,标准偏差整体上在0.4℃以内;气压除近地层有约-1.5hPa的系统误差外,整体上系统误差和标准偏差小于GTS1-2型探空仪,尤其标准偏差在全量程范围内在0.7hPa以内;GTS1-2A型探空仪湿度测量结果与RS92型探空仪一致性较好,灵敏度明显优于GTS1-2型探空仪,系统误差和标准偏差整体上均在10%RH以内。
The assessment of domestic scholars and WMO suggests that the GTS1-2 radiosonde needs technological improvement to meet the needs of operational upper-air observation, which was conducted on the basis of original technical structure in 2012 and the improved radiosonde was temporarily named GTS1- 2A. In August 2012, its test was carried out in the Yangjiang radiosonde station. The results show that it performed well in temperature measurement at night with system error less than-0.3 ℃ and overall standard deviation within 0. 2℃; but in the daytime, except at upper levels and when in/out of clouds, overall its system error is--0.3 ℃and its standard deviation is less than 0.4℃. As for pressure measurements, in the near-surface layer, the system error is about-1.5 hPa, and its accuracy and stability are better than GTS1-2. Especially its standard deviation is less than 0.7 hPa within full range. Its humidity has good consistency with RS92 with sensitivity better than GTS1-2 and overall system error and standard deviation within 10%RH.
出处
《气象科技》
2013年第3期453-458,505,共7页
Meteorological Science and Technology
基金
气象关键技术集成与应用项目(CMAGJ2011Z19)
气象行业专项(GYHY201106054-01)资助
