Kite Aerial Photography (KAP) for rip current identification in Parangtritis Beach Barandi Sapta Widartono, Muchsin Nur Wachid, Deha Agus Umarhadi, Anggini Nur Azizah and Restu Dwi Cahyo E3S Web Conf., 76 (2019) 03005 Published online: 15 January 2019 DOI: 10.1051/e3sconf/20197603005