Research Article
Spectral Analysis of Rainfall Anomaly in Tanjung Priok
@INPROCEEDINGS{10.4108/eai.2-8-2019.2290527, author={Tyas T Pujiastuti and Nurjaman Nurjaman and Sugeng Indarto}, title={Spectral Analysis of Rainfall Anomaly in Tanjung Priok}, proceedings={Proceedings of the 1st International Conference on Statistics and Analytics, ICSA 2019, 2-3 August 2019, Bogor, Indonesia}, publisher={EAI}, proceedings_a={ICSA}, year={2020}, month={1}, keywords={rainfall spectral analysis tanjung priok}, doi={10.4108/eai.2-8-2019.2290527} }- Tyas T Pujiastuti
Nurjaman Nurjaman
Sugeng Indarto
Year: 2020
Spectral Analysis of Rainfall Anomaly in Tanjung Priok
ICSA
EAI
DOI: 10.4108/eai.2-8-2019.2290527
Abstract
Rainfall is the most important weather element that played critical role in human life. Located in tropical region, Indonesia has great variability of rainfall that influenced by various factors including global, regional, and local scale phenomena. To achieve better rainfall prediction accuracy, we have to understand factors that contribute to rainfall formation process. In this study, we conducted spectral analysis of rainfall in Tanjung Priok. As the busiest port in the country, there was a demand of high precision weather forecast in Tanjung Priok region. Spectral analysis was used to recognize rainfall pattern in the location. The result showed that rainfall in Tanjung Priok followed the annual cycle, while rainfall anomalies observed six periods of 19 dasarians, 31 dasarians, 3 dasarians, 42 dasarians, 114 dasarians, and 228 dasarians. These periods were indicated as the period of ITCZ, Madden-Jullian Oscillation, dipole mode, and El Nino / La Nina.