Comparison of PWV values derived by GNSS and by radiosonde at Tan Son Hoa station, Hochiminh City
To exchange views and concerns | No. 19 (2014)
To exchange views and concerns | No. 19 (2014)

Comparison of PWV values derived by GNSS and by radiosonde at Tan Son Hoa station, Hochiminh City

DOI: 10.54491/jgac.2014.19.97
10.54491/jgac.2014.19.97
Published 2014-03-01
Nguyen Dinh Quoc Huynh
Faculty of Geodesy – University of Natural Resources and Environment, Ho Chi Minh City
Ngoc Lau Nguyen
Department of Geoinformatics – Ho Chi Minh City University of Science and Technology
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Huynh, N. D. Q., & Nguyen, N. L. (2014). Comparison of PWV values derived by GNSS and by radiosonde at Tan Son Hoa station, Hochiminh City. Journal of Geodesy and Cartography, (19), 21–28. https://doi.org/10.54491/jgac.2014.19.97
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Abstract

Precipitable water vapor (PWV) in the atmosphere is essential for weather forecast. Currently, correct determination of PWV is a big concern to those talking interest in hydrometeorology. In this paper, we present the algorithms for determining PWV and then compare between PWV derived from radiosonde observation data and PWV derived from GPS data at Tan Son Hoa Station, Ho Chi Minh City. The deviations between the two PWV values in this study, are less than 1.2mm. In addition, PWV values changed in accordance with changes of weather on the surveying days.
https://doi.org/10.54491/jgac.2014.19.97
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