Premium
Local amplification of storm surge by Super Typhoon Haiyan in Leyte Gulf
Author(s) -
Mori Nobuhito,
Kato Masaya,
Kim Sooyoul,
Mase Hajime,
Shibutani Yoko,
Takemi Tetsuya,
Tsuboki Kazuhisa,
Yasuda Tomohiro
Publication year - 2014
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1002/2014gl060689
Subject(s) - typhoon , storm surge , tropical cyclone scales , surge , tropical cyclone , climatology , hindcast , geology , storm , seiche , bathymetry , landfall , meteorology , environmental science , oceanography , cyclone (programming language) , geography , engineering , geomorphology , field programmable gate array , embedded system
Typhoon Haiyan, which struck the Philippines in November 2013, was an extremely intense tropical cyclone that had a catastrophic impact. The minimum central pressure of Typhoon Haiyan was 895 hPa, making it the strongest typhoon to make landfall on a major island in the western North Pacific Ocean. The characteristics of Typhoon Haiyan and its related storm surge are estimated by numerical experiments using numerical weather prediction models and a storm surge model. Based on the analysis of best hindcast results, the storm surge level was 5–6 m and local amplification of water surface elevation due to seiche was found to be significant inside Leyte Gulf. The numerical experiments show the coherent structure of the storm surge profile due to the specific bathymetry of Leyte Gulf and the Philippines Trench as a major contributor to the disaster in Tacloban. The numerical results also indicated the sensitivity of storm surge forecast.