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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >The Assessment of Ground-Based Weather Radar Data by Comparison With TRMM PR
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The Assessment of Ground-Based Weather Radar Data by Comparison With TRMM PR

机译：与TRMM PR比较评估地基天气雷达数据

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摘要

The Precipitation Radar (PR) on the Tropical Rainfall Measuring Mission satellite has already provided reliable observations for more than 15 years. There is a potential possibility to assess long-term data of ground-based radar (GR) in the China new generation weather radar network through comparison between PR and GR. In this letter, stratiform precipitation above and below bright bands is used to implement reflectivity comparison for PR and the ground-based weather radar in Nanjing from 2003 to 2014. The results show that the accuracy of GR reflectivity is well correlated with the distance from GR, and there are several unusual years in which GR did not work properly. The comparison also indicates that bias of reflectivity between PR and GR is negative above bright bands but positive below bright bands, and the bias has high correlation with GR reflectivity. The proposed scheme provides a practical method for a sanity check of GR data.
机译：15年来，热带雨量测量任务卫星上的降水雷达（PR）已经提供了可靠的观测结果。通过PR和GR之间的比较，有可能评估中国新一代气象雷达网络中的地面雷达（GR）的长期数据。在本文中，利用亮带上下的层状降水来进行南京市2003年至2014年PR和地面气象雷达的反射率比较。结果表明，GR反射率的精度与距GR的距离有很好的相关性，并且在某些不寻常的年份里，GR无法正常工作。比较还表明，PR和GR之间的反射率的偏差在亮带之上为负，而在亮带之下为正，并且该偏差与GR反射率具有高度相关性。所提出的方案为GR数据的完整性检查提供了一种实用的方法。

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  • 来源
    《IEEE Geoscience and Remote Sensing Letters》 |2017年第1期|72-76|共5页
  • 作者

    Nan Li; Zhenhui Wang; Fen Xu; Zhigang Chu; Yiqing Zhu; Jing Han;

  • 作者单位

    Key Laboratory for Aerosol-Cloud-Precipitation, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing, China;

    Key Laboratory for Aerosol-Cloud-Precipitation, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing, China;

    Jiangsu Institute of Meteorological Sciences, Nanjing, China;

    Key Laboratory for Aerosol-Cloud-Precipitation, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing, China;

    Key Laboratory for Aerosol-Cloud-Precipitation, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing, China;

    Key Laboratory for Aerosol-Cloud-Precipitation, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Spaceborne radar; Meteorological radar; Correlation; Rain; Standards;

    机译：星载雷达;气象雷达;相关性;雨量;标准;

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