The Impact of Rising Sea Levels on Historical Sites Old City Semarang Kirana Anindita Parama Putri, Hayati Sari Hasibuan and Rudy Parluhutan Tambunan E3S Web Conf., 317 (2021) 04012 Published online: 05 November 2021 DOI: 10.1051/e3sconf/202131704012