干旱气象 ›› 2022, Vol. 40 ›› Issue (6): 1092-1098.DOI: 10.11755/j.issn.1006-7639(2022)-06-1092

• 技术报告 • 上一篇    下一篇

风廓线雷达探测模式组合应用分析

毛文茜1,2(), 肖霞3(), 张文煜2,4, 冒立鑫5, 王开强5, 王琦6   

  1. 1.甘肃农业大学 资源与环境学院,甘肃 兰州 730070
    2.兰州大学 大气科学学院,半干旱气候变化教育部重点实验室,甘肃 兰州 730000
    3.中国科学院大气物理研究所,北京 100029
    4.郑州大学 地球科学与技术学院,河南 郑州 450001
    5.甘肃省民乐县气象局,甘肃 民乐 734500
    6.中国人民解放军91103部队,海南 三亚 572099
  • 收稿日期:2021-02-04 修回日期:2021-05-21 出版日期:2022-12-31 发布日期:2023-01-10
  • 通讯作者: 肖霞
  • 作者简介:毛文茜(1994—),女,博士,讲师,主要研究方向为大气探测和大气物理. E-mail:maowq16@lzu.edu.cn
  • 基金资助:
    国家重点研发计划项目(2018YFC1506600);国家自然科学基金项目(41875085);兰州大学中央高校基本科研业务费专项资金项目(lzujbky-2019-it05)

Application analysis of wind profile radar detection mode combination

MAO Wenqian1,2(), XIAO Xia3(), ZHANG Wenyu2,4, MAO Lixin5, WANG Kaiqiang5, WANG Qi6   

  1. 1. College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou 730070, China
    2. College of Atmospheric Sciences, Lanzhou University, Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, Lanzhou 730000, China
    3. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
    4. School of Geoscience and Technology, Zhengzhou University, Zhengzhou 450001, China
    5. Minle Meteorological Station of Gansu Province, Minle 734500, Gansu, China
    6. Unit No. 91103 of PLA, Sanya 572099, Hainan, China
  • Received:2021-02-04 Revised:2021-05-21 Online:2022-12-31 Published:2023-01-10
  • Contact: XIAO Xia

摘要:

为了更好地发挥风廓线雷达在高空探测中的优势,本文利用2014—2017年中国科学院大气物理研究所淮南气候环境综合观测试验站(Huainan Climate and Environment Observatory,HCEO)的ST风廓线雷达探测资料,评估在不同探测模式组合下雷达的探测性能,探讨探测气象环境对其影响,研判实际应用中探测模式组合的适用性。结果表明:ST风廓线雷达选用高、低模式与转换高度进行模式组合,可实现不同探测目的,但不同组合的探测性能存在差异,主要呈现两种变化规律:一种是模式转换前探测性能逐渐降低,而转换后迅速升高,进入高模式后随高度逐渐降低;另一种是转换过程中探测性能未发生明显改变,到高模式某一高度后逐渐降低。另外,秋冬季临近转换高度探测性能的降低程度逐渐加大;降水使对流层中低层探测性能降低。因此,可以依据雷达对大气边界层、对流层以及平流层的探测性能,选择合适的探测模式组合。

关键词: ST风廓线雷达, 探测模式, 探测环境, 探测性能, 评估

Abstract:

In order to better exploit the detection advantages of wind profile radar in upper layer, the detection data of ST wind profile radar during 2014-2017 from Huainan Climate and Environment Observatory (HCEO), Institute of Atmospheric Physics, Chinese Academy of Sciences, were used to evaluate the detection performance of ST wind profile radar under different detection mode combinations, and the influence of meteorological environment on detection performance was explored. On this basis, the applicability of detection mode combinations was discriminated in practical operations. The results show that ST wind profile radar can achieve different detection purposes by combining high or low modes with switching altitude. However, there are differences in detection performance under different combinations of mode. On the one hand, the detection performance of radar gradually decreases before the mode conversion and rapidly increases after the mode conversion, while it gradually decreases with height under the high mode. On the other hand, the detection performance of radar doesn’t change significantly in process of the conversion, while it gradually decreases after the high mode to a certain height. In addition, the reducing degree of detection performance gradually increases as the transition altitude approach in autumn and winter. The precipitation reduces the detection performance in lower and middle layers of troposphere. So, we select suitable mode combination based on the detection performance of radar to atmospheric boundary layer, troposphere and stratosphere.

Key words: ST wind profile radar, detection mode, detection environment, detection performance, evaluation

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