Analysis of ditching probability caused by typhoon wave using WAVEWATCH-III wave model

Abstract

Abstract: The ditching probability caused by typhoon wave was analyzed by using WAVEWATCH-III (WW3) wave model. Results show that: (1) The WW3 wave model can simulate the typhoon wave well with CCMP (Cross-Calibrated, Multi-Platform) wind data as driving field, and the simulation significant wave height (SWH) has high precision. (2) The ditching probability field has good agreement with the wave field, and the large areas mainly locate in the quadrants of 1st and 4th. (3) When the flying height is at 10 m, ditching probability in big wave area is above 20%, and it is even more than 35% in the large center, ditching probability is about 15%~20% in the wake of typhoon, and 10%~15% in other waters. When the flying height is at 15 m, ditching probability is greatly reduced and ditching probability in big wave area is 5%~15%, while it is below 5% in other waters.

Key words: WAVEWATCH-III, China Sea, typhoon wave, sea-skimming vehicle, ditching probability

CLC Number:

ZHENG Chong-wei, ZHUANG Hui, JIA Ben-kai, GUO Sui-ping. Analysis of ditching probability caused by typhoon wave using WAVEWATCH-III wave model[J]. Journal of Marine Sciences, 2013, 31(3): 36-40.

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