Precipitable water vapor estimated using GPS precise point positioning

E. Y. Handoko*, A. Kurniawan, P. Maulida, Susilo, N. A. Cemara

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

Precipitation water vapor is an important indicator of climate change. It is related to the moisture in the atmosphere. Atmospheric water vapor is one of the primary greenhouse gases, and it plays a critical role in weather forecasting, micrometeorology, and global climate change. Due to their high operational costs, sparse station distribution, and lack of all-weather availability, certain conventional methods of measuring water vapor, such as microwave radiometers and radio-sounding balloons, are limited in their application to modern meteorology. The precipitation water vapor values are can be obtained using Global Positioning System signal delays. The objective of this study is to estimate the zenith wet delay using the Global Positioning System precise point positioning method. Water Vapor can be presented by zenith wet delay. To estimate the strength of the relationship between zenith wet delay from GPS data, the computation of correlation with in situ data from meteorology data has been performed. Using two pair stations (Global positioning system and meteorology station): CMLG-Malang and CPAS-Tretes, the correlation coefficients are strong 0.85 and 0.79, respectively. Finally, GPS data measurement can be a complement to obtain the zenith wet delay and water vapor.

Original languageEnglish
Article number012068
JournalIOP Conference Series: Earth and Environmental Science
Volume824
Issue number1
DOIs
Publication statusPublished - 29 Jul 2021
Event6th International Conference on Climate Change 2021, ICCC 2021 - Surakarta, Virtual, Indonesia
Duration: 25 May 2021 → …

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