Study of bathymetry in determining Nuclear Power Plant Site in Gosong Beach Waters, West Kalimantan

Abstract

Gosong Beach waters are located in Bengkayang Regency West Kalimantan, where the water conditions are influenced by the South China Sea. This study aimed to determine the shape of the bottom morphology profile (bathymetry). The bottom morphology of the water was used as initial data to determine the location of nuclear sites in the study area. Bathymetry measurements were conducted using a single beam echosounder corrected by tidal data to determine the chart datum value, then used to correct sea depth for accuracy. The measurement of tidal data was conducted for 15 days in March 2021 with an interval of 1 hour. The results showed that the type of tidal obtained was mixed tide mixed with the double daily slope with Formzhal (F) value 0.77. The depth of the waters at the study site ranges from 0.9 to 8.45 meters. The average value of the coastal slope shows that spatially there are variations in the slope class with the percentage value ranging from 0.13 to 2.29% which is included in the classification of flat coastal slopes.

Studi Batimetri Dan Pasang Surut Di Kawasan Perairan Pulau Bawal Kabupaten Ketapang Kalimantan Barat

“…Gambar 2 menunjukan kontur kedalaman di perairan Pulau Bawal. Berdasarkan hasil penelitian, kedalaman perairan Pulau Bawal berkisar antara 0 -9,4 m. Hasil penelitian ini hampir sama dengan kondisi di perairan Pantai Gosong, Kabupaten Bengkayang yang memiliki kedalaman antara 0,9 -8,45 m (Susiati et al, 2021).…”

“…Berdasarkan warna yang dominan dari gambar kontur batimetri Perairan Pulau Bawal, dapat diklasifikasikan kelas lereng yaitu agak landai. Sedangkan, beberapa penelitian lain di perairan Kalimantan Barat menunjukkan tipe kelerengan dengan kategori landai (Susiati et al, 2021;Pangestu et al, 2020). Berdasarkan Van Zuidam (1985, kelerengan dengan kategori landai ditunjukkan dengan kemiringan antara 2-7% dan warna merah (153), hijau (204), dan biru (0).…”