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Beach recovery after 2004 Indian Ocean tsunami
Geomorphology 104 (2009) 134–142
Contents lists available at ScienceDirect
Geomorphology
j ourna l homepage: www.e lsev ie / locate /geomorphBeach recovery after 2004 Indian Ocean tsunami from Phang-nga, Thailand
Montri Choowong ?, Sumet Phantuwongraj, Thasinee Charoentitirat, Vichai Chutakositkanon,
Sombat Yumuang, Punya Charusiri
Department of Geology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand? Corresponding author. Department of Geology, Fac
University, Phrayathai, Bangkok, 10330, Thailand. Tel.
2185464.
E-mail address: monkeng@ (M. Choowo
0169-555X/$ – see front matter ? 2008 Elsevier B.V. Al
doi:10.1016/j.geomorph.2008.08.007a b s t r a c ta r t i c l e i n f oArticle history: The 2004 Indian Ocean tsun
Received 4 February 2008
Received in revised form 18 August 2008
Accepted 19 August 2008
Available online 28 August 2008
Keywords:
2004 Indian Ocean tsunami
Beach recovery
Accommodation space
Storm surge
Khao Lakami devastated the coastal areas along the Andaman western coast of Thailand
and left unique physical evidence of its impact, including the erosional landforms of the pre-tsunami
topography. Here we show the results from monitoring the natural recovery of beach areas at Khuk Khak and
Bang Niang tidal channels of Khao Lak area, Phang-nga, Thailand. A series of satellite images before and after
the tsunami event was employed for calculating the beach area and locating the position of the changed
shoreline. Field surveys to follow-up the development of the post-tsunami beach area were conducted from
2005 to 2007 and the yearly beach profile was measured in 2006. As a result, the scoured beach areas where
the tidal channel inlets were located underwent continuous recovery. The return of post-tsunami sediments
within the beach zone was either achieved by normal wind and wave processes or during the storm surges in
the rainy season. Post-2004 beach sediments were derived mainly from near offshore sources. The present
situation of t
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