Rainfall Variability in East Kalimantan from Impact of El Nino and La Nina for Effort Disaster Prevention to Support National Security

Abstract

Rainfall has an important influence on human life. One of the global influences that have an impact on rainfall conditions in Indonesia is the El Nino and La Nina phenomena which can result in disasters. Efforts to reduce disaster risk require good disaster management to protect the entire nation from all threats, especially non-military threats in the disaster aspect in East Kalimantan. One effort is to recognize East Kalimantan's rainfall variability in La Nina and El Nino conditions. This study uses rainfall data for 1991 – 2020 at three locations at the Sepinggan Meteorological Station, Balikpapan, Samarinda and Kalimarau Berau, East Kalimantan. El Nino conditions in East Kalimantan show the influence of rainfall during the dry season, rainfall is less than normal conditions. Reduced rainfall from normal conditions can result in drought. La Nina conditions in East Kalimantan show the influence of the dry season, there is an increase in rainfall compared to normal conditions. Increased rainfall from normal conditions can cause flooding. La Nina and El Nino  conditions affect rainfall in East Kalimantan which can have an impact on disasters. This condition must be anticipated in order to  reduce the risk of an impending disaster. Anticipation efforts can guarantee the safety and welfare of citizens, communities, La Nina and El Nino conditions affect rainfall in East Kalimantan which can have an impact on disasters. This condition must be anticipated in order to reduce the risk of an impending disaster. Anticipation efforts can guarantee the safety and welfare of citizens, communities, La Nina and El Nino conditions affect rainfall in East Kalimantan which can have an impact on disasters. This condition must be anticipated in order to reduce the risk of an impending disaster. Anticipation efforts can guarantee the safety and welfare of citizens.