Long-term analysis of climatological data related to global warming and climate change issues in Subak Jatiluwih, Bali

• Main Authors: Suparwata, I. Wayan Eka, Yastika, Putu Edi, Partama, I. GD Yudha, Vipriyanti, Nyoman Utari
• Format: Conference Proceeding
• Language: English
• Subjects: Climate change; Crop production; Data analysis; Extreme values; Global warming; Rainfall; Temperature; Trend analysis
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0192976

Climate change and Global Warming (GWCC) are hot issues for decades. There is much evidence showing the impacts of GWCC on a global scale. The GWCC has the potential to bring bad impacts to the production of the crops in the local area such as at Subak JatiLuwih, Bali. However, the quantitative analysis of long-term climate data in Subak Jatiluwih is not available. In this study, a 30 years analysis of climate data in Subak Jatiluwih has been conducted. The daily temperature and rainfall data from 1991 to 2020 are provided by the Indonesian Meteorology Agency (BMKG). From the trend analysis of temperature data, it is found the annual average temperature increased from 18.2 °C in 1991 become 20°C in 2020. The frequency analysis of monthly average temperatures also found the number of events with temperatures in the range of 19.1°C - 20.5°C becomes more frequent. The monthly average of the maximum temperature also has an increase of 0.9°C. These events correlate with the number of extreme rainfalls which also increased in the last 3 decades. Therefore, this study confirms that the GWCC phenomenon impacted Subak Jatiluwih. However, it needs further study to know the effects and adaptation/mitigation of GWCC in Subak Jatiluwih.