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Estimation of coastal tsunami height and arrival time at Kalpakkam

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Title Estimation of coastal tsunami height and arrival time at Kalpakkam
 
Creator Sen, S
Srinivas, C V
Chandrasekaran, S
 
Subject Coastal tsunami height
Dip angle
Focal depth
Rake angle
Slip
Tsunami arrival time]
 
Description 457-462
After the devastation of the Indian Ocean tsunami of 2004, there is an increased emphasis on tsunami wave modeling for
disaster management studies. In this work, a new approach of estimation of coastal tsunami height is proposed and tested for
the locations around Kalpakkam. The proposed methodology uses uniformly spaced coarse meshes throughout the domain
to calculate the nearshore deep sea wave height and then correlates it with the corresponding coastal tsunami height of a
beach. Thus, the proposed method is simple and computationally economical. The method is successfully tested for three
stations (Vizag, Chennai, Nagapattinam) around Kalpakkam for which reliable data sets of historical events are available.
Next, a sensitivity analysis study is carried out to estimate the impact of a number of fault parameters on coastal tsunami
amplitude and wave arrival time at Kalpakkam. Results show that though all the important fault parameters like slip, rake
angle, dip angle, focal depth influence the coastal tsunami height, the slip value has the largest impact. It is also noted that
while the tsunami waves arrive more rapidly at this coast with an increase of slip, dip angle and rake angle, they slow down
with the increasing focal depth value.
 
Date 2024-06-13T09:45:04Z
2024-06-13T09:45:04Z
2023-10
 
Type Article
 
Identifier 2582-6727 (Online); 2582-6506 (Print)
http://nopr.niscpr.res.in/handle/123456789/64066
https://doi.org/10.56042/ijms.v52i10.1848
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJMS Vol.52(10) [October 2023]