| 长三角地区多种大气可降水量获取方法研究 |
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| 引用本文： | 李黎,高颖,陈国栋,赵伟.长三角地区多种大气可降水量获取方法研究[J].大地测量与地球动力学,2022,42(4):384-388. |
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| 作者姓名： | 李黎 高颖 陈国栋 赵伟 |
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| 作者单位： | 苏州科技大学地理科学与测绘工程学院,苏州市学府路 99 号,215009;苏州科技大学北斗导航与环境感知研究中心,苏州市学府路 99 号,215009 |
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| 基金项目： | 国家自然科学基金;江苏省自然科学基金;湖南省自然科学基金 |
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| 摘 要： | 利用长三角地区多个探空站气象资料、GNSS观测数据和GPT3模型,以探空资料的大气可降水量(PWV)为参考值,评估GPT3模型、两种地面气象资料法和GNSS等4种方法计算的PWV精度、可靠性和时效性.结果表明,GPT3模型可实时获取PWV,但精度较低;GNSS-PWV精度最高,但需要实测气象参数,会限制其应用范围;两种...
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| 关 键 词： | GPT3模型 PWV GNSS 露点温度 探空资料 |
Research on the Methods of Obtaining Precipitable Water Vapor in Yangtze River Delta |
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| LI Li,GAO Yin,CHEN Guodong,ZHAO Wei.Research on the Methods of Obtaining Precipitable Water Vapor in Yangtze River Delta[J].Journal of Geodesy and Geodynamics,2022,42(4):384-388. |
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| Authors: | LI Li GAO Yin CHEN Guodong ZHAO Wei |
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| Abstract: | Based on the GPT3 model, GNSS observation data and meteorological data of multiple radiosonde stations in Yangtze River Delta, we evaluate the precision, reliability and real-time performance of PWV calculated by GPT3 model, 2 surface meteorological data methods and GNSS, compared with the radiosonde PWV as the true value. The results show that the GPT3 model can be used to obtain real-time PWV with low precision. GNSS-PWV has the highest precision, but it needs measured meteorological parameters, which limits its widespread application. The 2 surface meteorological data methods have the higher precision, but they need surface dew point temperature data. |
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| Keywords: | GPT3 model PWV GNSS dew point temperature radiosonde data |
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