Anwar Siswadi (Contributor), Jakarta – Bandung Institute of Technology (ITB) maritime expert, Hamzah Latief, said in an online seminar held on August 10, 2021, that 30 percent of Indonesian coastal regions are facing the threat of being submerged under seawater similar to Jakarta.
"Around 15.8 percent or 13 thousand kilometers of Indonesian coastal regions are highly at risk," Hamzah said on August 10, 2021.
Hamzah said that researchers are interested in identifying whether an area will be submerged permanently or temporarily, the level of water, and the time of when it will occur.
Hamzah added that the 6 millimeters of annual sea-level rise in Indonesia is less concerning compared to momentary oceanographic phenomena such as the La Lina. Hamzah explained that when La Nina occurs, there is a significant increase ofwater temperature in the West Pacific Ocean followed by 10 to 15 millimeters of rising sea levels, and increased rain intensity.
"Everything must be quantified and analyzed to be developed into a scenario," said Hamzah.