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Journal : Faktor Exacta

Evaluasi Keakuratan Produk Satelit (CHRIPS, GPM-IMERG, PERSIANN-CCS, dan GSMaP) Dalam Mengidentifikasi Curah Hujan di Sumatera Barat ZIKRI, MUHAMMAD AULIA; DISERA, TIARA EMANUELLA; SARAGIH, RIO HANSYEN; NUGRAHENI, IMMA REDHA
Faktor Exacta Vol 18, No 4 (2025)
Publisher : LPPM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/faktorexacta.v18i4.27697

Abstract

This study evaluates the accuracy of satellite rainfall products against observational data from three stations in West Sumatra, averaged to represent the region's general conditions. The analysis uses eyeball and statistical methods on daily, ten-day, monthly, and seasonal scales. The satellite products assessed include GPM-IMERG, CHIRPS, GSMaP, and PERSIANN-CCS. On the daily scale, CHIRPS shows the best accuracy with a correlation coefficient of 0.17, RMSE of 27.97 mm, NRMSE of 0.097, and MAE of 14.19 mm. On the ten-day, monthly, and seasonal scales, GPM-IMERG outperforms the other products, achieving the highest correlation coefficient of 0.84. Additional analysis using contingency table metrics (POD, FAR, CSI, FOH, HSS) confirms GPM-IMERG as the most accurate product. These findings indicate that GPM-IMERG is the most reliable satellite product for rainfall estimation in West Sumatra, especially for longer temporal analyses.
Co-Authors Adzan, Muhizzadin Abdul Agung Hari Saputra Agustina Dwi Putri Ariyanto Al Farrosi, Ahmad Ijmal Ambinari Rachmi Putri An-Nizami, Muhammad Subhan Andreas Kurniawan Silitonga Anggi M. Hanif Aofany, Diar Aprizal Verdyansyah Arfianti, Dinda R Aries Kristianto Arif Setiawan Arifah Dwi Yuliani Arzhida, Bima Avrionesti, Avrionesti Azka, Mukhamad Adib Azka, Mukhamad Adib Carundyatama, Daniar Ihza Deni Septiadi Deranadyan, Gumilang Disera, Tiara Emanuella DISERA, TIARA EMANUELLA Ekky Amiral Faqi Ekky Amiral Faqi Eko Wardoyo Faza, Muhammad Zakky Gumilang Deranadyan Hanif Kurniadi Hapsoro Agung Nugroho Hidayat, Anistia M Hilmi Hasani Samsuri Islamiardi, Rossian Nursiddiq Ismah Atikah Khairunnisa Kholis Nur Cahyo Krisna Dwi Oktabrian Lestari, Tri Anggun Lilik Ardiyanto Lu'lu Nuthmainati Fu'adah Maulana, Rezky Fajar Maulidyah, Meldisa Putri Merdeka, Juang Muhammad Alfaridzi Muhammad Jouhar Syah Muhammad Zakky Faza Mukhamad Adib Azka Nayla Alvina Rahma Nesty Youwe, Angelina Serena Gracella Novitarini, Putu Widya Pangalo, Gracia Nadya Angelina Prabu Aditya Sugianto QULUB, ALFI RIFQI Raden Mohamad Herdian Bhakti Radjab, Fachri Rahma, Nayla Alvina Rahmadani, Nur Fitri Rejeki, Hasti Amrih Reksadiwirya, Putu Rendy Syahril Amanu Rista Hernandi Virgianto Rizka Erwin Lestari SARAGIH, RIO HANSYEN Sari, Nining Baidila Setyowati, Pertiwi Risky Silitonga, Andreas Kurniawan Silitonga, Andreas Kurniawan Soegiarto, Ita Sony Ariwibowo Sugianto, Prabu Aditya Sugianto, Prabu Aditya Syadza Siskayani Putri Syahrin, Khairummin Alfi Tamba, Kristian Adi Putra TUNA, MIRANDA SAHFIRA Verdyansyah, Aprizal Wardoyo, Eko Yosik Norman Yusuf Jati Wijaya Zikri, Muhammad Aulia