Paper Info
Title
Using Satellite Altimetry to Calibrate the Simulation of Typhoon Seth Storm Surge off Southeast China.
Abstract
Satellite altimeters can capture storm surges generated by typhoons and tropical storms, if the satellite flies over at the right time. In this study, we show TOPEX/Poseidon altimeter-observed storm surge features off Southeast China on 10 October 1994 during Typhoon Seth. We then use a three-dimensional, barotropic, finite-volume community ocean model (FVCOM) to simulate storm surges. An innovative aspect is that satellite data are used to calibrate the storm surge model to improve model performance, by adjusting model wind forcing fields (the National Center for Environment Prediction (NCEP) reanalysis product) in reference to the typhoon best-track data. The calibration reduces the along-track root-mean-square (RMS) difference between model and altimetric data from 0.15 to 0.10 m. It also reduces the RMS temporal difference from 0.21 to 0.18 m between the model results and independent tide-gauge data at Xiamen. In particular, the calibrated model produces a peak storm surge of 1.01 m at 6: 00 10 October 1994 at Xiamen, agreeing with tide-gauge data; while the peak storm surge with the NCEP forcing is 0.71 m only. We further show that the interaction between storm surges and astronomical tides contributes to the peak storm surge by 34% and that the storm surge propagates southwestward as a coastally-trapped Kelvin wave.
Year
DOI
Venue
2018
10.3390/rs10040657
REMOTE SENSING
Keywords
Field
DocType
storm surge,satellite altimetry,calibration,numerical modelling,FVCOM
Meteorology,Altimeter,Barotropic fluid,Satellite,Typhoon,Kelvin wave,Remote sensing,Forcing (mathematics),Storm surge,Geology,Tropical cyclone
Journal
Volume
Issue
Citations 
10
4
0
PageRank 
References 
Authors
0.34
0
6
Name
Order
Citations
PageRank
Xiaohui Li128.19
guoqi han201.69
Jingsong Yang31712.82
Dake Chen401.01
Gang Zheng510919.51
Nan Chen658.26