| 甘肃临夏人工与自动气象站气温观测差异对比及均一性研究 |
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| 引用本文： | 石登科,崔学祯.甘肃临夏人工与自动气象站气温观测差异对比及均一性研究[J].甘肃气象,2008,26(4):71-74. |
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| 作者姓名： | 石登科 崔学祯 |
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| 作者单位： | 甘肃省临夏回族自治州气象局,甘肃临夏731100 |
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| 基金项目： | 甘肃省气象局2007-02课题"临夏自动与人工观测资料对比分析及均一性研究"资助
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| 摘 要： | 自动气象站因其监控、观测、采集、存储资料方面的诸多优势，已成为今后我国地面气象观测的发展主流，并将逐步取代人工观测。人工观测和自动站之间不可避免地存在着观测差异，这种差异对历史气象资料的延续性提出了挑战，并将深刻影响大气科学研究和业务应用。因此，对比分析2个观测系统之间的观测差异及均一性是非常必要的。结果表明，临夏气象站2种观测数据序列中，平均气温的平均差异为-0．35℃，差值变幅为0．22～-1．56℃；最高气温的差异变幅为0．01～0．31℃；最低气温的差异大，变幅不稳定，其中1～3月差异变幅为-2．12～-3．05℃，其余月份差异变幅为0．05～-0．57℃。自动站日平均气温和最低气温系统性偏低于人工观测值，最高气温反之。在分析2个数据序列差异的基础上，建立了各季的气温订正方程。订正后2个序列的差值减小，尤其最大偏差显著减小，效果良好。
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| 关 键 词： | 自动气象站 人工观测 气温 均一性 |
Study on Difference and Homogeneity of Temperature Between AWS and Manual Observation in Linxia of Gansu Province |
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| SHI Dengke,CUI Xuezhen.Study on Difference and Homogeneity of Temperature Between AWS and Manual Observation in Linxia of Gansu Province[J].Gansu Meteorology,2008,26(4):71-74. |
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| Authors: | SHI Dengke CUI Xuezhen |
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| Affiliation: | Linxia Meteorological Bureau of Gansu Province;Linxia 731100;China |
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| Abstract: | Because of its superior characteristic in monitoring,observation,data taking,and data storage etc,AWS became the developing trend of surface weather observation and it would take the place of traditional manual observation.There is difference between AWS and manual observations inevitably due to their observational ways.The difference has a significant effect on continuity of historical meteorological data,atmosphere sciences research and weather forecast service.Based on temperature data from AWS and manua... |
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| Keywords: | manual observation temperature homogeneity |
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