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All Journal Geoid - Journal of Geodesy and Geomatics
Ira Mutiara Anjasmara, Ira Mutiara
Institut Teknologi Sepuluh Nopember
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Engineering Environmental Science

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Predictive Modeling of Terrestrial Water Storage Anomalies in Kalimantan Basins: Bridging the GRACE and GRACE-FO Data Gap with Extreme Gradient Boosting Safira, Rizka Amelia Dwi; Anjasmara, Ira Mutiara; Awange, Joseph L.
GEOID Vol. 19 No. 3 (2024)
Publisher : Departemen Teknik Geomatika ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/geoid.v19i3.2329

Abstract

Terrestrial water storage (TWS) anomaly has been a robust indicator in predicting and monitoring hydrometeorological hazards and sustainable water resources management to comprehend the water dynamics on Earth. The Gravity Recovery and Climate Experiment (GRACE) satellite identifies this change by heeding the Earth’s mass anomalies since 2002. However, due to an 11-month data gap before the operation of GRACE-FO, continuous investigation using GRACE has been challenging. This study employed an extreme gradient boosting (XGBoost) algorithm to reconstruct GRACE TWS anomaly by integrating the hydroclimatic variables from Noah surface models over a span of approximately 20 years, focusing on five Kalimantan basins. The testing set was evaluated using three statistical metrics, resulting in a correlation coefficient (CC) of 0.943, Nash–Sutcliffe efficiency (NSE) of 0.887, and scaled root-mean-square error (RMSE*) of 0.337. This approach effectively addresses the research gap in utilizing the GRACE product in an archipelago state such as Indonesia and offers an efficient method for reconstructing TWS anomalies for various hydrological systems at the local scale.
Co-Authors . , Khomsin ., Khomsin Adi, Fajar Setio Aisya, Nurnaning Akbar Kurniawan Amien Widodo Andi Rahmadiansah Aninda Nurry, Aninda Anita Thea Saraswati, Anita Thea Awange, Joseph L. Budi Joko Purnomo, Budi Joko Cahyadi , Mokhamad Nur Dedi Aji Kuncara, Dedi Aji Hartikasari, Risca Khomsin Khomsin, Khomsin Koeswoyo, Tio Lukman Hakim Meiriska Yusfania Mu'amalah, Arifatul Muhamadi , Mansur MUHAMMAD TAUFIK Muthmainnah, Nisaa Ul Pratomo, Danar Guruh Rahayu, Safri Yanti Riastama, Cindy Nandya Ristanto, Wahyu Romadhon, Rizky Safira, Rizka Amelia Dwi Sanjiwani, I Dewa Amertha Sidharta, Yan Adrian Silaban, Enjelius Sulaiman, Mukhammad Nur Syahputri, Bella Esti Ajeng Ulin, Rizki Fahrudin Widy Putra, Widy