TY JOUR TI Statistics of Wave Heights, Crests, and Troughs During the Black Sea Storm in November 2023 KW extreme storm KW freak waves KW crest KW trough KW abnormality index KW excess kurtosis KW Black Sea JO Russian Journal of Earth Sciences AU Garmashov, A.V. AU Zapevalov, A.S. PY IS 26 PB Geophysical Center of the Russian Academy of Sciences