Shilpa Manandhar, Soumyabrata Dev, Y. Lee, Stefan Winkler
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Predicting GPS-based PWV Measurements Using Exponential Smoothing
Global Positioning System (GPS) derived precipitable water vapor (PWV) is extensively being used in atmospheric remote sensing for applications like rainfall prediction. Many applications require PWV values with good resolution and without any missing values. In this paper, we implement an exponential smoothing method to accurately predict the missing PWV values. The method shows good performance in terms of capturing the seasonal variability of PWV values. We report a root mean square error of 0.1 mm for a lead time of 15 minutes, using past data of 30 hours measured at 5-minute intervals.
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