Analysis of El Niño and IOD Phenomenon 2015/2016 and Their Impact on Rainfall Variability in Indonesia

Avia, Lely Qodrita; Sofiati, Iis

doi:10.1088/1755-1315/166/1/012034

Cited by 8 publications

(2 citation statements)

References 17 publications

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“…Otherwise, when negative IOD and La Niña occur, Indonesia's rainfall increases more significantly than a single negative IOD or La Niña event (Nur'utami and Hidayat, 2016). This phenomenon occurred in 1997, when a strong El Niño coincided a strong positive IOD had caused a severely declined rainfall in most Indonesia (Avia and Sofiati, 2018;Fanin and Werf, 2017). Similar events were recorded in 2006 and 2007. The El Niño event worsen impacts of dry season such as triggering huge fire in the 2015 (Stiegler et al, 2019).The total loss that resulting from fires in period 2015-2019 is the total burned land and forest of more than 5.3 million km 2 (KLHK, 2020).…”

Section: Introductionmentioning

confidence: 70%

Spatial and Temporal Analysis of El Niño Impact on Land and Forest Fire in Kalimantan and Sumatra

2021

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Land and forest fires in Kalimantan and Sumatra, Indonesia occurred annually at different magnitude and duration. Climate and sea interaction, like El Niño, influences the severity of dry seasons preceding the fires. However, research on the influence of El Niño intensity to fire regime in Kalimantan and Sumatra is limited. Therefore, this study aims to analyze the spatial and temporal patterns of the effects of El Niño intensity on land and forest fires in fire-prone provinces in Indonesia. Here, we applied the empirical orthogonal function analysis based on singular value decomposition to determine the dominant patterns of hotspots and rainfall data that evolve spatially and temporally. For analysis, the study required the following data: fire hotspots, dry-spell, and rainfall for period 2001-2019. This study revealed that El Niño intensity had a different impacts for each province. Generally, El Niño will influence the severity of forest fire events in Indonesia. However, we found that the impact of El Niño intensity varied for Kalimantan, South Sumatra, and Riau Province. Kalimantan was the most sensitive province to the El Niño event. The duration and number of hotspots in Kalimantan increased significantly even in moderate El Niño event. This was different for South Sumatra, where the duration and number of hotspots only increased significantly when a strong El Niño event occurred.

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Section: Introductionmentioning

confidence: 70%

Spatial and Temporal Analysis of El Niño Impact on Land and Forest Fire in Kalimantan and Sumatra

2021

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“…But even in this state, research on drought in the region is very limited (Ferijal et al, 2021) . Previous studies on drought in Indonesia have been performed more frequently in the central and eastern regions (Avia and Sofiati, 2018;Iskandar et al, 2017;Lestari et al, 2018;Pramudya and Onishi, 2018). In the western Indonesia region, a drought study was conducted in the western region of Sumatra (Daoed et al, 2018) , Riau Provinces, and the southern region of Sumatra (Nurdiati et al, 2021) .…”

Section: Introductionmentioning

confidence: 99%

Drought Assessment in Aceh and North Sumatra Using Effective Drought Index

Suhadi

Supari

Iskandar

et al. 2023

Sci. Technol. Indones

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Indonesia has two seasons and witnesses three rainfall patterns throughout the year. Although Aceh and North Sumatra experience low rainfall, the underlying causes of this condition are unknown. Unfortunately, studies on drought in these regions are very limited. This study uses the Effective Drought Index (EDI) to assess drought in these regions using daily rainfall data from 1985–2019 (35 years) from the meteorology, climatology, and geophysics agency stations. These stations are Sultan Iskandar Muda, Malikussaleh, Deli Serdang, and FL Tobing. In this study, the Ocean Niño Index (ONI) and the Dipole Mode Index (DMI) were used to identify El Niño years and positive and negative phases of the Indian Ocean Dipole (IOD). These indices were used to analyze drought-related climatic phenomena. The results obtained indicated that some drought events were not associated with a positive Indian Ocean Dipole or El Niño, as is typically the case. These include the extreme drought in 1989/90 and moderate drought in 1999 at Sultan Iskandar Muda, moderate drought at Malikussaleh (March to June 2008), moderate drought at Deli Serdang in 2010, as well as the drought from January to June 2006 at FL Tobing. Analysis of spatial patterns revealed that moderate droughts were more prevalent than severe and extreme droughts. These drought assessment results are essential for the mitigation of natural catastrophes.

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Multiyear La Niña Events and Poor Harvest of Sea Salt in Madura Island

Bramawanto

Suaydhi

2023

Springer Proceedings in Physics

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Analysis of El Niño and IOD Phenomenon 2015/2016 and Their Impact on Rainfall Variability in Indonesia

Cited by 8 publications

References 17 publications

Spatial and Temporal Analysis of El Niño Impact on Land and Forest Fire in Kalimantan and Sumatra

Spatial and Temporal Analysis of El Niño Impact on Land and Forest Fire in Kalimantan and Sumatra

Drought Assessment in Aceh and North Sumatra Using Effective Drought Index

Multiyear La Niña Events and Poor Harvest of Sea Salt in Madura Island

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