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Journal : Jurnal Geocelebes

Analysis of Pollutant Distribution Due to Forest Fires in Ketapang Regency in 2015 Using The WRF-Chem Model Yani, Elyda; Ihwan, Andi; Ardianto, Randy; Adriat, Riza; Jumarang, Muhammad Ishak
JURNAL GEOCELEBES Vol. 9 No. 2: October 2025
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70561/geocelebes.v9i2.42903

Abstract

A forest fire occurred on September 9, 2015, resulting in 616 hotspots distributed across several regencies in West Kalimantan, 442 of which were in Ketapang Regency. This study aims to analyze the spatial and temporal distribution of pollutants caused by forest fires in Ketapang Regency in 2015 using the Weather Research and Forecasting with Chemistry (WRF-Chem) model. The data used to run the model includes the Final Global Data Assimilation System (FNL) dataset, the Emission Database for Global Atmospheric Research (EDGAR), and The Fire Inventory from NCAR (FINN), which serve as input and emission source data. The highest concentrations of pollutants, which are PM2.5 and PM10 at 30 µg/m³ each and CO at 342.9 µg/m³, were observed in the southern part of Kalimantan, which is the main source of the forest fires. These pollutants subsequently dispersed toward the northern part of Kalimantan. During the fire events, pollutants were transported to the upper atmosphere from morning to noon but accumulated near the surface at night. This pattern was influenced by meteorological conditions, including wind speed and direction, surface pressure, and air temperature. During forest fires, pollutants are emitted into the atmosphere from morning to afternoon, and accumulate near the surface during the night. This pattern was influenced by meteorological factors, including wind speed and direction, surface pressure, and air temperature.
Drought Analysis in Ketapang District using the Keetch-Byram Drought Index Method Massuro, Lusyndatul; Adriat, Riza; Muliadi, Muliadi; Ihwan, Andi; Sutanto, Yuris
JURNAL GEOCELEBES Vol. 8 No. 2: October 2024
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70561/geocelebes.v8i2.36474

Abstract

Ketapang Regency is one of the areas in West Kalimantan that is prone to drought. Drought can trigger forest and land fires. In this research, the Keetch-Byram Drought Index (KBDI) method was used to determine the level of drought in Ketapang Regency. The KBDI method relies on annual rainfall accumulation, daily rainfall, and maximum air temperature. The KBDI values obtained were correlated with the number of hotspots using Pearson correlation. This research was conducted throughout 2018-2022. Based on the monthly average KBDI value, the highest drought in Ketapang Regency occurred in August and September, while the lowest drought occurred in December and January. In terms of the annual average, the highest drought occurred in 2019. During the ENSO phenomenon in 2019, the El Niño phase experienced higher drought than the La Niña phase and normal years. In the El Niño phase, drought levels reach high to extreme categories. The correlation value between annual KBDI and the number of hotspots is 0.88, indicating a solid relationship. An increase in the KBDI value will be followed by an increasing number of hotspots.
Co-Authors . Apriansyah A.A. Ketut Agung Cahyawan W Abdul Muid Abdul Muid Agus Prasetiono Aliftha, Tita Anastasia Anastasia Andi Ihwan andriani, riski Angga Irfandi Yudistira Anggreni, Reni Annisa, Citra Agita Anugerah, Anugerah Aprilina, Aprilina Ardianto, Randy Ariyani, Riri Nur Arsyad, Ya' Muhammad Asih Astarini Azrul Azwar Bintoro Siswo Nugroho Delfi Warsita Masdat Dewanti, Yanuarti Pasta Dwiria Wahyuni Elfrida Ratnawati Erna Wati Eva, Theresia Faras, Angelia Millenis Febriana Diah Permata Fernanda, Anastasia Gracia Fitriani Fitriani Fransiska, Butet Galuh Utamia Dillayati Hajrul, Siti Hasanuddin Hasanuddin Heni Susiati Hidayat, Fitri Dayanti Indrawati, Ajeng Candra Irfana Diah Faryuni Jannati Jannati Jesiani, Eka Mey Joko Sampurno Joko Sampurno Jumarang, Muh Ishak Mahavira Zen Massuro, Lusyndatul Mega Sari Juane Sofiana Merlyn Elsyani Monica Monica Muh. Ishak Jumarang Muhammad Sholeh Muhardi Muhardi Muhardi Muliadi Muliadi Muliadi Muliadi Muliadi Muliadi Muliadi Muliadi Nanda Darmawan Natasha, Ingga Niyati, Nurasniyati Noang, Aurel Vivaldi Novi, Maria Brigita Nugraha, Alfa Nur Fitri Nurhasanah Nurhasanah Nurhasanah Nurhasanah Nurhasanah Nurhasanah Nurhasanah Nurhasanah Okto Ivansyah Perawiska, Erni Perdana, Radhitya Perdhana, Radhitya Prabowo, Ridho Puteri, Martsa Farindi Dwi Putri, Evi Pania Putri, Tiara Nusa Rahwanda Rahwanda Ramat, Muhammad Farhan Riri Nur Ariyani Risko, Risko Rista, Lorensiana Safitri, Andriani Salawati Salawati Salawati, Salawati Sariana Sariana, Sariana Satria Putra, Yoga Satyawardhana, Haries Siti Helmyati Suhardi Irawan Tantri, Oktaviana Toersilowati, RR. Laras Tri, Mario Andika Tyas Khansa Tsabita Wahyu Tri Hidayat Wahyuni, Ade Tri Wilnaldo, Andre Ya' Muhammad Arsyad Yani, Elyda Yoga Satria Putra Yoga Satria Putra Yudha Arman Yulia Agustin Yuris Sutanto Yusuf Arief Nurrahman Zibar, Zan Zulfian Zulfian