Spatial and temporal oil spill distribution monitoring in the java sea in 2019 with multi-temporal Sentinel-1 SAR data Available to Purchase

Oil spill have catastrophic consequences on the marine environment. The oil components can have various impacts on human health, diversity of coastal ecosystems, fisheries, also tourism. This study aim to monitor and map the oil spill distribution which occurred from July 12 – October 01, 2019 in Java Sea North of Karawang, Indonesia using multi-temporal Sentinel-1 SAR data. Monitoring oil spill using SAR images was an efficient method that provides valuable information, concerned about location of oil spills, the movement, and to estimated area of oil spill distribution. Image pre-processing consisted of radiometric and geometric corrections. Oil spill detection carried out using the adaptive thresholding method, combined with image segmentation, GIS analysis and advance visual interpretation. Analysis the movement of oil spill from Sentinel-1 SAR multi-temporal data also compared with the wind and ocean currents data at the time of the incident. Based on the processing of eight Sentinel-1 SAR data with different recording dates, it was known that the movement of oil spills tends to the Southwest, West until Northwest from YYA-1 oil platform. The movement of oil spill was in line with the pattern of sea currents movement and surface winds which also generally move to Southwest until Northwest at the time of the incident due to effect of East Monsoon. Based on the processing of multi-temporal Sentinel-1 SAR data, it was known that the total area of the oil spill in the Java Sea, North of Karawang is approximately 103.71 km². The areas most severely affected by the oil spill was along the coast of Karawang Regency and parts of the coast of Bekasi Regency.