ANALISIS KORELASI KERAPATAN TITIK API DENGAN CURAH HUJAN DI PULAU SUMATERA DAN KALIMANTAN
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Abstract
Intisari
Kebakaran hutan dan lahan merupakan bencana yang rutin terjadi di Indonesia. Pulau Sumatera dan Kalimantan menjadi wilayah yang paling sering dilanda kebakaran hutan dan lahan. Munculnya titik api di wilayah Sumatera dan Kalimantan mempunyai pola tersendiri. Penelitian ini bertujuan untuk mengetahui secara spasial-temporal konsentrasi titik api di wilayah Sumatera dan Kalimantan serta korelasinya dengan curah hujan. Berdasarkan hasil pengolahan data titik api yang bersumber dari hasil perekaman citra MODIS (Satelit Terra & Aqua) tahun 2006-2015, didapatkan bahwa kerapatan titik api di Pulau Sumatera dan Kalimantan akan mencapai puncaknya pada bulan September. Wilayah yang memiliki konsentrasi titik api paling tinggi adalah Provinsi Riau dan Sumatera Selatan di Pulau Sumatera serta Provinsi Kalimantan Tengah dan Kalimantan Barat di Pulau Kalimantan. Hasil pengolahan data curah hujan bulanan juga menunjukkan bahwa pada bulan September curah hujan di Pulau Sumatera dan Kalimantan mencapai nilai terendah dalam satu tahun, yaitu 25-150 mm/bulan. Selain itu, korelasi antara jumlah titik api dan curah hujan menunjukkan nilai korelasi yang cukup (R = 0,307) dengan pola hubungan yang negatif. Hasil pengolahan terhadap data historis titik api ini bisa menjadi acuan dalam kesiapan penanggulangan bencana kebakaran hutan dan lahan yang sering terjadi di Pulau Sumatera dan Kalimantan.
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Abstract
Forest fire is one of disasters that occur regularly in Indonesia. Sumatera and Borneo are regions with the most frequently hit by forest fires disaster through years. The emergence of hotspots in Sumatera and Borneo have it own patterns. This study aimed to figure hotspot density in Sumatera and Borneo spatial-temporally and their correlation with rainfall. Based on the results of data processing hotspots sourced from recording of MODIS satellite (Terra and Aqua) 2006-2015, it was found that the density of hotspots in Sumatra and Kalimantan will reach its peak in September. Riau and South Sumatera Province are the regions that has highest concentration of hotspots in Sumatera island, meanwhile Central Borneo and West Borneo Province become the regions that has highest concentration of hotspots in Borneo island. The processing of monthly rainfall data also shown that in September rainfall in Sumatra and Kalimantan reach its lowest level in a year, which is 25-150 mm/month. In addition, hotspot density and rainfall are correlated enough (R = 0,307). The results of the processing of historical hotspots data in this paper could become a reference for forest fires disaster management that often happens in Sumatera and Borneo.
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