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 ›› 2013, Vol. 29 ›› Issue (4): 31-36.doi:

• 论文 • 上一篇    下一篇

GPS遥感大气可降水量在降水天气过程分析中的应用

黄振1,2 李万彪1 梁军2   

  1. 1.北京大学物理学院大气科学系，北京 100871；2.大连市气象局，辽宁 大连 116001
  • 出版日期:2013-08-31 发布日期:2013-08-31

Application of precipitable water vapor from ground based GPS data to analysis of precipitation weather process

HUANG Zhen1,2 LI Wan-biao  1   LIANG Jun 2   

  1. 1. Department of Atmospheric Sciences, School of Physics, Peking University, Beijing 100871, China; 2. Dalian Meteorological Bureau, Dalian 116001, China
  • Online:2013-08-31 Published:2013-08-31

PDF (PC)

20452

被引次数

5

摘要： 应用GPS探测的大气可降水量(PWV)对2010年大连地区降水过程中水汽变化特征进行了分析。结果表明：GPS/PWV资料能反映大气中水汽的时间和空间变化，其变化特征与降水有较好的对应关系；不同性质的降水过程PWV变化特征明显不同，稳定性降水过程中PWV变化较为平缓，呈明显的单峰结构，对流性降水过程水汽变化程度剧烈，呈震荡趋势，而混合型降水具有两种性质降水的共同特征；降水过程中GPS/PWV阈值表明，GPS/PWV资料在降水天气预报方面有一定的应用价值。

关键词: 大气可降水量, 稳定性降水, 对流性降水, 混合型降水

Abstract: Based on the perceptible water vapor (PWV) data from the ground based GPS, the water vapor characteristics of precipitation weather processes in Dalian in 2010 were analyzed. The results show that the PWV data could reflect the temporal and spatial variation of water vapor and its variation characteristics has a significant corresponding relationship with precipitation. If the precipitation process differs, the PWV characteristics are also distinctly different. The PWV variation is gentle for a stable precipitation type and it has a single peak value; water vapor changes violently for a convective precipitation type and it is in a fluctuating trend; it is of the common characteristics of the above two precipitation types for a mixed precipitation type. The thresholds of the PWV related to rain are also given in the text, which indicates that the PWV data are useful to forecast precipitation to some extent.

Key words: Precipitable water vapor (PWV), Stable precipitation, Convective precipitation, Mixed precipitation