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Journal : JGISE-Journal of Geospatial Information Science and Engineering

Low-cost alternative flood modeling using CHIRPS data in the Way Garuntang Catchment, Bandar Lampung, Indonesia Sahid, Sahid; Nana, Yanto Putri; Fahmi, Aziz; M Gilang, Mardika Indra; Ferial, Asferizal; Syukry, Zein Akbar; Wiedad, Diyaulhaq; Devi, Yunida
Jurnal Geospasial Indonesia Vol 7, No 2 (2024): December
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jgise.94307

Abstract

Floods are hydro-meteorological events that could impact economic losses and threaten human life. Floods are events where water overflows in potential areas due to exceeding the river's capacity. Flood modeling is the key in reducing the impact of losses resulting from flood disasters. Satellite-based rainfall data provides data with spatial and temporal distribution that has the potential to be an alternative as input in flood modeling. The availability of satellite rainfall data as input for flood modeling certainly requires an assessment of the modeling results' accuracy level. This research aims to investigate the performance of flood inundation modeling using CHIRPS data. The accuracy value of flood modeling results is calculated by comparing flood modeling results through Snyder-Alexejev synthetic unit hydrograph discharge calculations, which are then applied to 2D flood hydraulic modeling using HEC-RAS. The findings indicate that as an alternative to rainfall station data to model flood inundation, Chirps data have a level of accuracy that can be considered. Even though there are differences in the extent and depth of flood inundation between CHIRPS data and observation rainfall stations data, the results of modeling with CHIRPS data can contribute to mapping potential flood-prone areas.
Co-Authors Abdul Rahman Achmad Widodo Adiprimaswara, Michael Putra Narendra Afsari, Ayudya Ahmad Zaki Aldyfra Luhulima Lukman Alfauzi, Abdul Syukur Alfiatul Maulida, Alfiatul Alyasa, Moh. Fani Anandia, Faranita Putri Andi Wahyudi Anis Roihatin Arif Fauzi, Dhiyaulhaq Ariyanto, Wahyu Arrahman, Friendika Alif Asferizal, Ferial Atmojo, Slamet Priyo Atthariq, Luthfi Aryananda Aukad, Muhamad Aulia, Nur Fatowil Badaruddin, Sukri Barid, Muhammad Bernard Bernard, Bernard Bono Bono Chatarina Umbul Wahyuni Darlan, Armayanti Devi, Yunida Djam'an, Nurwati Dwiana Hendrawati F. Gatot Sumarno, F. Gatot Fahmi, Aziz Fauziah, Selma Nurul Ferial, Asferizal Gatot Yulianto Gutomo, Gutomo Hamda, Hamda Hassan, Muhammad Nasiru Hermawan, Baktiyar Mei Ihsan, Haikal Muhammad Indrarani, Indri Astrina Fitria Kusriyah, Ainun Jariyah Dewi Kuswari Hernawati M Gilang Indra Mardika Mar Athul Wazithah T. Maulani, Choirunnisa Prilya Maulidina, Fathiya Nur Mochammad Denny Surindra Muhammad Ammar Naufal Muhammad Rifki Mulyono Mulyono Munawwaroh, Dita Anies Musdalifah Musdalifah Mustofa, Rida Mutmainnah, Fakhirah Nadia, Aulia Nana Putri Yanto Nancy Y Nugroho Nasir, Nur Anisa Nur Sakinah Nuraliyah, Ahmida Nurdin Arsyad, Nurdin Nurfadilla, Nurfadilla Nurhaliza, Ratih Nurhidayah Nurhidayah Nurjannah Nurjannah Nursadi, Nursadi Pratiwi, Okta Ayu Priscila, Anastasia Julia Putri, Farika Tono Putri, Tania Prameswari Rahma Yanda Rahma, Nur Ratna Tri Hardaningtyas, Ratna Tri Risal Rinofah, Risal Rofik, Abdur Rosidah Rosidah Sa'diyyah, Fadhilah Nur Saefulloh, Muhammad Abia Safaruddin, Yanuar Mahfudz Safarudin, Yanuar Mahfud Safitri, Ayuun SALSABILA, ANNISA Saputra, Dwiki Mifta Saputri, Sukma Ajeng Damar Sari, Shaufa Salsabila Sofiani, Gizella Sri Andayani Sufia, Sufia Sugeng Widada Sulistyoningtyas, Dian Lestari Sumarni Sumarni Supriyo Supriyo Syahrullah Asyari, Syahrullah Syukry, Zein Akbar Tantri, Riris Annisa Tarra Totok Prasetyo Udi Harmoko Ulhaq, Wiedad Diya Usman Mulbar Utomo, Bagus Wahyu Wattimena, Christopher Johanes Edsel Wiedad, Diyaulhaq Wildana Wildana, Wildana Wulandari, Reski Yusuf Dewantoro Herlambang