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Remote sensing and field assessment of tsunami effects on coastal pond aquaculture in northern Sumatra

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  • Kam S.P.
  • Liew, S.C.
  • Muchlisin, Z.A.
  • Chen, P.
  • WorldFish Center
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    Abstract

    An attempt was made to conduct spatial assessment of the pattern and extent of damage to coastal aquaculture ponds along the east coast of Aceh province in Sumatra, Indonesia, resulting from the tsunami event of 26 December 2004. High-resolution satellite imagery, i.e., SPOT-5 multispectral scenes covering the 700 km stretch of the coast, acquired before and after the tsunami, were digitally enhanced and visually interpreted to delineate pockets of aquaculture ponds that were discerned to be damaged and relatively intact. Field checks were conducted at 87 sites in the four eastern coastal districts. The results indicate that SPOT-5 multispectral imagery was minimally sufficient to detect areas of damaged and relatively intact aquaculture ponds, but the 10-m spatial resolution poses limitations to evaluating the extent of pond damage. Nevertheless, the 60 km swath of the imagery makes it reasonably affordable for large-area assessment to identify pockets of severe damage for targeting more detailed assessments. The image maps produced from a mosaic of the SPOT-5 scenes can also serve as base maps for spatial planning in the challenging task of reconstruction and rehabilitation of the disrupted livelihoods of the coastal communities.

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    File URL: http://www.worldfishcenter.org/Naga/e-Naga/29-3-4/pdf/article1.pdf
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    Bibliographic Info

    Article provided by The WorldFish Center in its journal Naga.

    Volume (Year): 29 (2006)
    Issue (Month): 3/4 ()
    Pages: 4-9

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    Handle: RePEc:wfi:wfnaga:37122

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    Keywords: Remote sensing; Disasters; Spatial analysis; Coastal zone; ISEW; Indonesia; Aceh;

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