主办单位：中国气象局沈阳大气环境研究所
国际刊号：ISSN 1673-503X
国内刊号：CN 21-1531/P
气象与环境学报

气象与环境学报 ›› 2019, Vol. 35 ›› Issue (5): 27-36.doi: 10.3969/j.issn.1673-503X.2019.05.004

• 论文 • 上一篇    下一篇

2017—2018年辽宁地区三次降雪天气的GPS水汽变化特征

徐爽1, 胡鹏宇2, 梁红1, 吴宇童1, 李典1,3, 张帅1   

  1. 1. 沈阳市气象局, 辽宁 沈阳 110168;
    2. 辽宁省气象灾害监测预警中心, 辽宁 沈阳 110166;
    3. 中国气象局沈阳大气环境研究所, 辽宁 沈阳 110166
  • 收稿日期:2018-05-30 修回日期:2018-09-20 出版日期:2019-10-30 发布日期:2019-10-08
  • 通讯作者: 梁红,女,高级工程师,E-mail:syzmj@sina.com。 E-mail:syzmj@sina.com
  • 作者简介:梁红,女,高级工程师,E-mail:syzmj@sina.com。
  • 基金资助:
    辽宁省气象局科学技术项目（BA201809）和中国气象局沈阳大气环境研究所开放基金（2018SYIAE04）共同资助。

Characteristics of GPS precipitable water vapor during three snowfall events from 2017 to 2018 in Liaoning province

XU Shuang1, HU Peng-yu2, LIANG Hong1, WU Yu-tong1, LI Dian1,3, ZHANG Shuai1   

  1. 1. Shenyang Meteorological Service, Shenyang 110168, China;
    2. Liaoning Meteorological Disaster Monitoring and Early Warning Center, Shenyang 110166, China;
    3. Institute of Atmospheric Environment, China Meteorological Administration, Shenyang 110166, China
  • Received:2018-05-30 Revised:2018-09-20 Online:2019-10-30 Published:2019-10-08

PDF (PC)

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摘要： 利用欧洲中心（European Center for Medium-Range Weather Forecasts，ECMWF） ERA-interim再分析资料、常规气象观测资料及GPS （Global Position System）系统探测的大气可降水量（Precipitable Water Vapor，PWV）资料，对2017—2018年辽宁地区三次中雪及以上量级的降雪过程中大气可降水量的演变特征进行分析。结果表明：三次降雪过程中PWV均呈现单峰式结构，其与小时降雪量之间存在较好的时间对应关系，降雪时段对应PWV高值阶段；在降雪出现前6—15 h，PWV迅速增加，且PWV总增长量与降雪强度存在较好的正相关关系。

关键词: 降雪天气, 地基GPS, 大气可降水量

Abstract: Using the ECMWF (European Center for Medium-Range Weather Forecasts) ERA-interim reanalysis data,convention observation data and GPS (Global Position System) precipitable water vapor (PWV) observations,the variations of PWV during the three snow-falling processes occurring in Liaoning province were analyzed.The results indicate that the variations of PWV present a single-peak structure during the snowfalls.There is a good correlation between the variations of PWV and the hourly amounts of snowfall.The occurrence of snowfall corresponds to the high value of PWV.The PWV has increased rapidly since the snowfall occurred six to fifteen hours ago.The total increasing amount of PWV is positively correlated with the intensity of snowfall.

Key words: Snowfall weather, Ground-based GPS, Precipitable water vapor

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