High Frequency (HF) Radar Detection of the Weak 2012 Indonesian Tsunamis

We report here on the observation and offline detection of the weak tsunamis generated by earthquakes near Indonesia on 11 April 2012 using radar systems and tide gauges on the coasts of Sumatra and the Andaman Islands. This work extends the previous observations of the much stronger 2011 Japan tsun...

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Main Authors: Basanta Kumar Jena, Bruce Nyden, Kuppili Rajesh, T. Srinivasa Kumar, James Isaacson, Donald Barrick, Subandono Diposaptono, Belinda Lipa
Format: Article
Language:English
Published: MDPI AG 2012-10-01
Series:Remote Sensing
Subjects:
Online Access:http://www.mdpi.com/2072-4292/4/10/2944
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author Basanta Kumar Jena
Bruce Nyden
Kuppili Rajesh
T. Srinivasa Kumar
James Isaacson
Donald Barrick
Subandono Diposaptono
Belinda Lipa
author_facet Basanta Kumar Jena
Bruce Nyden
Kuppili Rajesh
T. Srinivasa Kumar
James Isaacson
Donald Barrick
Subandono Diposaptono
Belinda Lipa
author_sort Basanta Kumar Jena
collection DOAJ
description We report here on the observation and offline detection of the weak tsunamis generated by earthquakes near Indonesia on 11 April 2012 using radar systems and tide gauges on the coasts of Sumatra and the Andaman Islands. This work extends the previous observations of the much stronger 2011 Japan tsunami. The distance offshore at which the tsunami can be detected, and hence the warning time provided, depends primarily on the bathymetry: the wider the shallow continental shelf, the greater this time. The weak Indonesia tsunamis were detected successfully in spite of the narrow shallow-water shelf offshore from the radar systems. Larger tsunamis could obviously be detected further from the coast. This paper provides further confirmation that radar is an important tool to aid in tsunami observation and warning.
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spelling doaj.art-907a20f89708450fab66ba0c145bc9ba2022-12-21T19:41:39ZengMDPI AGRemote Sensing2072-42922012-10-014102944295610.3390/rs4102944High Frequency (HF) Radar Detection of the Weak 2012 Indonesian TsunamisBasanta Kumar JenaBruce NydenKuppili RajeshT. Srinivasa KumarJames IsaacsonDonald BarrickSubandono DiposaptonoBelinda LipaWe report here on the observation and offline detection of the weak tsunamis generated by earthquakes near Indonesia on 11 April 2012 using radar systems and tide gauges on the coasts of Sumatra and the Andaman Islands. This work extends the previous observations of the much stronger 2011 Japan tsunami. The distance offshore at which the tsunami can be detected, and hence the warning time provided, depends primarily on the bathymetry: the wider the shallow continental shelf, the greater this time. The weak Indonesia tsunamis were detected successfully in spite of the narrow shallow-water shelf offshore from the radar systems. Larger tsunamis could obviously be detected further from the coast. This paper provides further confirmation that radar is an important tool to aid in tsunami observation and warning.http://www.mdpi.com/2072-4292/4/10/2944radar oceanographyremote sensingcurrent velocity measurementtsunami detection
spellingShingle Basanta Kumar Jena
Bruce Nyden
Kuppili Rajesh
T. Srinivasa Kumar
James Isaacson
Donald Barrick
Subandono Diposaptono
Belinda Lipa
High Frequency (HF) Radar Detection of the Weak 2012 Indonesian Tsunamis
Remote Sensing
radar oceanography
remote sensing
current velocity measurement
tsunami detection
title High Frequency (HF) Radar Detection of the Weak 2012 Indonesian Tsunamis
title_full High Frequency (HF) Radar Detection of the Weak 2012 Indonesian Tsunamis
title_fullStr High Frequency (HF) Radar Detection of the Weak 2012 Indonesian Tsunamis
title_full_unstemmed High Frequency (HF) Radar Detection of the Weak 2012 Indonesian Tsunamis
title_short High Frequency (HF) Radar Detection of the Weak 2012 Indonesian Tsunamis
title_sort high frequency hf radar detection of the weak 2012 indonesian tsunamis
topic radar oceanography
remote sensing
current velocity measurement
tsunami detection
url http://www.mdpi.com/2072-4292/4/10/2944
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