Abstract We calculate the value of the effects of fog and hazy weather on GPS zenith tropospheric delay and precise point positioning. Our results show that there is a weak correlation between AQI index and the tropospheric delay when the air quality is continuously good without fog and haze. The most severe fog and haze will affect the zenith tropospheric delay, with effect values from about 40-60 mm. However, in precise point positioning, most of positioning inaccuracy affected by haze can be eliminated by the method of tropospheric delay parameter estimation, in which there is a weak correlation between AQI index and the accuracy of precise point positioning, whether or not there is heavy fog and haze.
WEI Erhu,YANG Zhixin,LIU Xuexi et al. Effects of Fog and Haze Weather on GPS Zenith Tropospheric Delay and Precise Point Positioning[J]. jgg, 2017, 37(11): 1146-1149.
WEI Erhu,YANG Zhixin,LIU Xuexi et al. Effects of Fog and Haze Weather on GPS Zenith Tropospheric Delay and Precise Point Positioning[J]. jgg, 2017, 37(11): 1146-1149.