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Open AccessArticle

Synthesis Analysis of One Severe Convection Precipitation Event in Jiangsu Using Ground-Based GPS Technology

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College of Meteorological Observation, Chengdu University of Information Technology, Chengdu 610225, China
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Key Laboratory of Atmosphere Sounding, China Meteorological Administration, Chengdu 610225, China
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Key Laboratory of Meteorological Disasters, Ministry of Education, Nanjing University of Information Science and Technology, Nanjing 210044, China
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Meteorological Service Center of Jiangsu Province, Jangsu Meteorological Bureau, Nanjing 210008, China
*
Author to whom correspondence should be addressed.
Academic Editor: Robert W. Talbot
Atmosphere 2015, 6(7), 908-927; https://doi.org/10.3390/atmos6070908
Received: 17 March 2015 / Revised: 27 June 2015 / Accepted: 2 July 2015 / Published: 10 July 2015
Global positioning system (GPS) detection technology has several advantageous characteristics (i.e., all-weather applications, high accuracy, high spatial and temporal resolution, and low cost), and GPS tracking and monitoring techniques for water vapor have developed rapidly in recent years. The GPS-precipitable water vapor (GPS-PWV), obtained through inversion using this technology can reflect the water vapor inflow and outflow in a vertical air column above a certain area in nearly real-time, which is especially important for areas of severe water vapor variation. In this paper, we studied the relationship between GPS-PWV variation and actual precipitation. The specific aim was to identify the underlying physical mechanisms driving the variation and to further strengthen the utility of GPS-PWV in forecasts and warnings of severe convection weather. We concluded that (1) rapid rise in the GPS-PWV in the long-term low-level data predicted the arrival of precipitation and was therefore useful in weather forecasts; (2) the GPS-PWV variation was closely related with the movement of the water vapor transfer belt; (3) the atmosphere showed an unstable energy structure before the GPS-PWV increase; and (4) local motion was strongly related with the development and maintenance of precipitation. View Full-Text
Keywords: convection precipitation; GPS-PWV; physical mechanism; synthesis analysis convection precipitation; GPS-PWV; physical mechanism; synthesis analysis
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MDPI and ACS Style

Wang, H.; He, J.; Wei, M.; Zhang, Z. Synthesis Analysis of One Severe Convection Precipitation Event in Jiangsu Using Ground-Based GPS Technology. Atmosphere 2015, 6, 908-927.

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