Fractal representation of tsunami waves: a generalized geophysical gardner equation Aranya Jha, A. Gowrisankar, Shaobo He, Harshvardhan Anand and Asit Saha Eur. Phys. J. Spec. Top., 232 7 (2023) 979-990 Published online: 05 June 2023 DOI: 10.1140/epjs/s11734-023-00861-1