Imputation of Missing Weather Data in Automatic Weather Station Using the GRU Algorithm
DOI:
https://doi.org/10.30871/jaic.v10i2.12301Keywords:
AWS, Imputation, Machine Learning, GRU, WeatherAbstract
Missing data in Automatic Weather Stations (AWS) due to sensor failure or communication errors poses a significant challenge to the accuracy of weather and climate modeling. Traditional imputation methods often struggle with the complex temporal patterns of meteorological data. This study evaluates the performance of the Gate Recurrent Unit (GRU) algorithm for imputing missing air temperature and humidity data. The research utilized meteorological data from three AWS locations in Banten Province (AWS Staklim Banten, Golf Modern, and BSD Serpong) collected between January 2022 and January 2024. The model was tested using simulated missing data scenarios ranging from 5% to 50% and evaluated using R2, RMSE, and MAPE metrics. The results demonstrate that the GRU model achieves high accuracy, maintaining a strong correlation (R2 > 0.9) with actual sensor data even at high missing rates. The average MAPE was recorded at 1.79% for air temperature and 3.92% for humidity. Furthermore, the RMSE values met the precision criteria and measurement uncertainty limits set by the World Meteorological Organization (WMO). The study concludes that the GRU algorithm is a computationally efficient and highly accurate method for handling missing time-series weather data.
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Copyright (c) 2026 Kustita Rhamadania, Makhsun Makhsun, Choirul Basir, Naufal Ananda

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