Electronic Theses and Dissertation

Suhu permukaan laut (SPL) merupakan salah satu indikator penting dalam dinamika
oseanografi yang berperan dalam memengaruhi pola curah hujan, khususnya di
wilayah pesisir. Penelitian ini bertujuan untuk menganalisis hubungan antara suhu
permukaan laut dan curah hujan bulanan di wilayah Pantai Timur Aceh selama periode
2010 hingga 2023. Data SPL diperoleh dari Copernicus Marine Environment
Monitoring Service (CMEMS) dalam bentuk data NetCDF, sementara data curah
hujan diperoleh Climate Explore dalam bentuk NetCDF. Proses analisis korelasi
dilakukan secara spasial dan statistik menggunakan bahasa pemrograman Python
dalam Visual Studio Code. Hasil visualisasi spasial menunjukkan adanya variasi suhu
permukaan laut dengan kisaran 28,6°C hingga 30,9°C, dengan suhu tertinggi
umumnya terjadi pada pertengahan tahun. Uji korelasi Pearson antara SPL dan curah
hujan menunjukkan hubungan negatif dengan koefisien r = -0,15 dan koefisien
determinasi R² = 0,02, yang berarti hanya sekitar 2% variasi curah hujan dapat
dijelaskan oleh perubahan suhu permukaan laut. Meskipun nilai signifikansi p = 0,044
< 0,05 menunjukkan hubungan secara matematis signifikan, namun besarnya pengaruh
SPL terhadap curah hujan tergolong sangat lemah.
Kata kunci: suhu permukaan laut, curah hujan, Pantai Timur Aceh, analisis korelasi.

Sea Surface Temperature (SST) is an important indicator in oceanographic dynamics, playing a significant role in influencing rainfall patterns, particularly in coastal areas. This study aims to analyze the relationship between sea surface temperature and monthly rainfall in the Eastern Coastal region of Aceh from 2010 to 2023. SST data were obtained from the Copernicus Marine Environment Monitoring Service (CMEMS) in NetCDF format, while rainfall data were sourced from Climate Explorer, also in NetCDF format. The correlation analysis was carried out both spatially and statistically using the Python programming language in Visual Studio Code. Spatial visualizations show SST variations ranging from 28.6°C to 30.9°C, with the highest temperatures generally occurring in the middle of the year. Pearson correlation tests between SST and rainfall indicate a negative relationship with a correlation coefficient of r = -0.15 and a coefficient of determination R² = 0.02, meaning only about 2% of rainfall variation can be explained by changes in SST. Although the significance value p = 0.044 < 0.05 indicates a statistically significant relationship, the influence of SST on rainfall is considered very weak. Keywords: sea surface temperature, rainfall, east coast of Aceh, Correlation Analysis