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Atmosphere 2015, 6(7), 908-927; doi:10.3390/atmos6070908

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

1
College of Meteorological Observation, Chengdu University of Information Technology, Chengdu 610225, China
2
Key Laboratory of Atmosphere Sounding, China Meteorological Administration, Chengdu 610225, China
3
Key Laboratory of Meteorological Disasters, Ministry of Education, Nanjing University of Information Science and Technology, Nanjing 210044, China
4
Meteorological Service Center of Jiangsu Province, Jangsu Meteorological Bureau, Nanjing 210008, China
*
Author to whom correspondence should be addressed.
Academic Editor: Robert W. Talbot
Received: 17 March 2015 / Revised: 27 June 2015 / Accepted: 2 July 2015 / Published: 10 July 2015
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Abstract

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
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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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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