Abstract
The objective of the study is to analyse the rainfall variability and temperature over Greater Aceh and its correlation to ENSO event. Long-term rainfall observation data spanning from 1982-2018 was retrieved from meteorological station of Blang Bintang, Greater Aceh. The Pearson correlation was employed to find the relationship between rainfall and El Niño and Southern Oscillation (ENSO) occurrence. It is shown from frequency analysis that rainfall decreased in the 90s. After the tsunami as climate change become unequivocal the rainfall trend increase as a result of land use change and much worst as severe ENSO 2015 arrived over the region which statistically significant was found between those two corresponding events. During El Niño, rainfall is less while La Niña more rainfall than normal drop over the region. To cope with climate change issues where ENSO is very likely to occur in future time, an appropriate mitigation is required to conduct for instance: managing forest resources and land use by reducing deforestation and land conversion, the control of fossil fuel burning, and the most important thing is to establish a renewable energy as an effort to implement sustainable green energy in the future as well as climate risk reduction.
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