Investigating El Nino Southern Oscillation as the main driver of forest fire in Kalimantan

Strong El Nino events have been identified as major factors contributing to the forest fire in Indonesia. This is due to El Nino Southern Oscillation (ENSO) variability has a distinct connection with tropical precipitation, mainly in Indonesia. El Nino years are typically drier, while La Nina events...

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Main Authors: Brasika, Ida Bagus Mandhara, Antara, I Made Oka Guna, Karang, I Wayan Gede Astawa
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2021
Online Access:http://journalarticle.ukm.my/18212/1/49955-172592-1-PB.pdf
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author Brasika, Ida Bagus Mandhara
Antara, I Made Oka Guna
Karang, I Wayan Gede Astawa
author_facet Brasika, Ida Bagus Mandhara
Antara, I Made Oka Guna
Karang, I Wayan Gede Astawa
author_sort Brasika, Ida Bagus Mandhara
collection UKM
description Strong El Nino events have been identified as major factors contributing to the forest fire in Indonesia. This is due to El Nino Southern Oscillation (ENSO) variability has a distinct connection with tropical precipitation, mainly in Indonesia. El Nino years are typically drier, while La Nina events generally increase precipitation in Indonesia. Although very strong El Nino events have been connected with massive forest fires, fire continue to occur during the other phases of ENSO: La Nina and normal. Here, the research reports a time series of monthly counted fires in Kalimantan between the period 2001-2020 from MODIS fire hotspot and MODIS Burned Area products. The region is divided into three categories, Primary Intact Forest, Primary Degraded Forest and Outside Forest/ Deforested area. This categorization validates the location of the fire. Our results show that in general wildfires in Kalimantan follow a similar temporal pattern with Oceanic Nino Index (ONI), with several anomalies. If ONI is high, wildfires are more intense and vice versa. The wildfire appears almost every month and increases drastically in June-October of El Nino years. However, the proportion of wildfires in Primary Intact Forest are tiny and insignificant. The primary intact forest fire only appears in July-October and have a different pattern with wildfires in general. In conclusion, wildfires are highly correlated with El Nino but limited in primary intact forests. The fires dominantly appear in the deforested area, about 80%. The rest 20% are in degraded forest and only less than 1% in primary intact forest.
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spelling ukm.eprints-182122022-03-14T00:57:46Z http://journalarticle.ukm.my/18212/ Investigating El Nino Southern Oscillation as the main driver of forest fire in Kalimantan Brasika, Ida Bagus Mandhara Antara, I Made Oka Guna Karang, I Wayan Gede Astawa Strong El Nino events have been identified as major factors contributing to the forest fire in Indonesia. This is due to El Nino Southern Oscillation (ENSO) variability has a distinct connection with tropical precipitation, mainly in Indonesia. El Nino years are typically drier, while La Nina events generally increase precipitation in Indonesia. Although very strong El Nino events have been connected with massive forest fires, fire continue to occur during the other phases of ENSO: La Nina and normal. Here, the research reports a time series of monthly counted fires in Kalimantan between the period 2001-2020 from MODIS fire hotspot and MODIS Burned Area products. The region is divided into three categories, Primary Intact Forest, Primary Degraded Forest and Outside Forest/ Deforested area. This categorization validates the location of the fire. Our results show that in general wildfires in Kalimantan follow a similar temporal pattern with Oceanic Nino Index (ONI), with several anomalies. If ONI is high, wildfires are more intense and vice versa. The wildfire appears almost every month and increases drastically in June-October of El Nino years. However, the proportion of wildfires in Primary Intact Forest are tiny and insignificant. The primary intact forest fire only appears in July-October and have a different pattern with wildfires in general. In conclusion, wildfires are highly correlated with El Nino but limited in primary intact forests. The fires dominantly appear in the deforested area, about 80%. The rest 20% are in degraded forest and only less than 1% in primary intact forest. Penerbit Universiti Kebangsaan Malaysia 2021 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/18212/1/49955-172592-1-PB.pdf Brasika, Ida Bagus Mandhara and Antara, I Made Oka Guna and Karang, I Wayan Gede Astawa (2021) Investigating El Nino Southern Oscillation as the main driver of forest fire in Kalimantan. Geografia : Malaysian Journal of Society and Space, 17 (4). pp. 305-320. ISSN 2180-2491 https://ejournal.ukm.my/gmjss/issue/view/1443
spellingShingle Brasika, Ida Bagus Mandhara
Antara, I Made Oka Guna
Karang, I Wayan Gede Astawa
Investigating El Nino Southern Oscillation as the main driver of forest fire in Kalimantan
title Investigating El Nino Southern Oscillation as the main driver of forest fire in Kalimantan
title_full Investigating El Nino Southern Oscillation as the main driver of forest fire in Kalimantan
title_fullStr Investigating El Nino Southern Oscillation as the main driver of forest fire in Kalimantan
title_full_unstemmed Investigating El Nino Southern Oscillation as the main driver of forest fire in Kalimantan
title_short Investigating El Nino Southern Oscillation as the main driver of forest fire in Kalimantan
title_sort investigating el nino southern oscillation as the main driver of forest fire in kalimantan
url http://journalarticle.ukm.my/18212/1/49955-172592-1-PB.pdf
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