jgg     2013 33 (2):  87-90    ISSN: 0412-1961  CN: 21-1139/TG IMPACT ANALYSIS OF PRESSURE PARAMETER ON INVERSION OF GPS PRECIPITABLE WATER VAPOR Hubei Key Laboratory for Heavy Rain Monitoring and Warning Research, Institute of Heavy Rain, CMA, Wuhan430074 Received: 2013-01-11  Revised: null  Online: 2013-04-18 Supporting info