高原气象

高原气象 >

2014 , Vol. 33 >Issue 2: 452 - 459

DOI: https://doi.org/10.7522/j.issn.1000-0534.2013.00013

论文

唐古拉山区Geonor T—200B雨雪量计日降水观测误差修正

  • 赵求东 ,
  • 叶柏生 ,
  • 何晓波 ,
  • 张健 ,
  • 赵传成
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  • 中国科学院寒区旱区环境与工程研究所 寒旱区水文与水土资源研究室, 兰州 730000;2. 中国科学院寒区旱区环境与工程研究所 冰冻圈科学国家重点实验室, 兰州 730000

收稿日期: 2012-06-19

  网络出版日期: 2014-04-28

基金资助

国家重大科学研究计划项目（2013CBA01806）；国家自然科学基金项目（41201025，41030527，41130638，41130641）；中国科学院寒区旱区环境与工程研究所青年人才基金项目（51Y251A61）

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Bias Correction of Daily Precipitation Measured by Geonor T-200B Precipitation Gauge in Tanggula Mountain

  • ZHAO Qiudong ,
  • YE Baisheng ,
  • HE Xiaobo ,
  • ZHANG Jian ,
  • ZHAO Chuancheng
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  • Division of Hydrology and Water-Land Resource in Cold and Arid Regions, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;2. State Key Laboratory of Cryospheric Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China

Received date: 2012-06-19

  Online published: 2014-04-28

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摘要

降水观测资料的准确性对气候、气象及水文研究至关重要，因此20052011年在青藏高原唐古拉山中段开展了中国标准雨量计（CSPG）和Geonor T-200B自动雨雪量计（下称T-200B）的降水对比观测试验，以CSPG人工观测的日降水修正值作为真实的日降水量，通过数学统计分析，提出T-200B的固态、液态及混合态日降水修正公式，并对其进行验证。结果表明，T-200B日降水观测值经过修正后，与CSPG日降水修正值基本相符，试验时段三种降水类型的降水总量的T-200B修正值与CSPG修正之间的平均相对误差为2.3%，平均绝对误差为13.7 mm，该修正方案提高了T-200B降水观测效率，修正精度能够满足实际应用需求。

关键词： 唐古拉山区; T-200B; CSPG; 降水; 误差修正

本文引用格式

赵求东 , 叶柏生 , 何晓波 , 张健 , 赵传成 . 唐古拉山区Geonor T—200B雨雪量计日降水观测误差修正[J]. 高原气象, 2014 , 33(2) : 452 -459 . DOI: 10.7522/j.issn.1000-0534.2013.00013

Abstract

Accurate measurement of precipitation is crucial to meteorology, climate and hydrology research. A comparative precipitation observation of Chinese Standard Precipitation Gauge (CSPG) and the Geonor T-200B Gauge (T-200B) were conducted during 2005-2011 in the middle of Tanggula Mountain, Qinghai-Xizang Plateau. The CSPG was calibrated to the observed daily precipitation by the developed standard equations. A bias correction method of precipitation for three precipitation patterns was developed and validated for T-200B Gauge. The results show that the adjusted value of T-200B is in accord with that of CSPG, the mean relative error between the adjusted accumulative precipitation of Geonor T-200B and that of CSPG is 2.3%, and the mean absolute error is 13.7 mm during observed period. The bias correction method improves the observation efficiency of T-200B significantly, and the accuracy can be enough for the practical application.

Key words： Tanggula Mountain; T-200B; CSPG; Precipitation; Bias correction

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