Nugroho, B.D.A.
Although there has been a high relationship between global climate and rainfall in Indonesia, little evidence is available for relationship between Sea Surface Temperature (SST) and rainfall pattern in highland of country. This study evaluates the relationships between Sea Surface Temperature (SST) and rainfall distribution pattern in Gunungkidul district, highland of South-Central Java, Indonesia. Principal Component Analysis (PCA) approach was used to summarize the average of SSTs during rainy season (October to March) for the El Niño monitoring regions: IOBW (Indian Ocean Basin-Wide), Niño. West and Niño. 3. Monthly rainfall data was collected from Agricultural Government of Gunungkidul district. In this area, rainfall was highest in the southern and western mountainous areas, especially near the coast, and SSTs values were highly correlated with rainfall in those areas. Almost all sub districts in Gunungkidul district has significant correlations between PC1 SSTs and rainfall during October-November-December (OND).
Meskipun telah ada hubungan yang tinggi antara iklim global dan curah hujan di Indonesia, sedikit bukti tersedia untuk hubungan antara suhu permukaan laut (Sea Surface Temperature, SST) dan pola curah hujan di dataran tinggi di Indonesia. Penelitian ini mengevaluasi hubungan antara suhu permukaan laut (SST) dan pola distribusi curah hujan di Kabupaten Gunungkidul, dataran tinggi Jawa Tengah-Selatan, Indonesia. Pendekatan Principal Component Analysis (PCA) digunakan untuk meringkas rata-rata SST selama musim hujan (Oktober sampai Maret) untuk daerah pemantauan El Niño: IOBW (Indian Ocean Basin-Wide), Niño. Barat dan Niño. 3. Data curah hujan bulanan diperoleh dari Dinas Pertanian Kabupaten Gunungkidul. Di daerah ini, curah hujan tertinggi terjadi di daerah pegunungan selatan dan barat, terutama di dekat pantai, dan nilai SSTs sangat berhubungan dengan curah hujan di wilayah tersebut. Hampir semua kecamatan di Kabupaten Gunungkidul memiliki korelasi yang signifikan antara PC1 SST dan curah hujan selama bulan Oktober-November-Desember (OND).