DAMPAK TERJADINYA EL NINO/LA NINA TERHADAP INTENSITAS, MASA HIDUP DAN FREKUENSI SIKLON
Cyclone is one of the most destructive hidrometeorological disaster on the Earth. Cyclone can happen in the area that is influenced by El Nino (La Nina) activity. Both cyclone and El Nino (La Nina) can cause extreme weather condition or extreme climate condition in the tropical area. This research is aimed to find the impact of El Nino (La Nina) phenomenon to intensity of the cyclone around Indonesia. The intensity of cyclone is classified by the Saffir-Simpson Hurricane Scale. Besides, relationship of El Nino (La Nina) with lifetime and frequency of cyclone around Indonesia is also studied. This research will compare between the cyclone data on the year with El Nino (La Nina) and the cyclone data on the normal year. This research is using the cyclone data in 10 years between 2007 until 2017 from the JAXA (Japan Aerospace Exploration Agency) website. Besides, the El Nino index on Nino 3.4 as the data of ENSO activity is also used. The method that is used by the research is the statistical method. From the analysis, generally found that El Nino (La Nina) has significant positive impact to the intensity and the lifetime of cyclones around Indonesia. Specifically, El Nino (La Nina) has significant positive impact to the intensity and the lifetime of cyclones in the northern part of equator. Meanwhile, it doesn’t show the significant correlation in the southern part of the equator. The impact of El Nino (La Nina) to the cyclone frequency can’t be conducted on this research so that it needs further research.
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