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Capacity building in tropical coastal resource monitoring in developing countries: A re-appreciation of the oldest remote sensing method
Dahdouh-Guebas, F.; Verheyden, A.; Kairo, J.; Jayatissa, L. P.; Koedam, N. (2006). Capacity building in tropical coastal resource monitoring in developing countries: A re-appreciation of the oldest remote sensing method. Int. J. Sustain. Dev. World Ecol. 13(1): 62-76. dx.doi.org/10.1080/13504500609469662
In: International Journal of Sustainable Development and World Ecology. Sapiens Publishing: Carnforth. ISSN 1350-4509; e-ISSN 1745-2627
Peer reviewed article  

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Author keywords
    Mangrove, aerial photography, image attributes, capacity building, Third World

Auteurs  Top 
  • Dahdouh-Guebas, F.
  • Verheyden, A.
  • Kairo, J.
  • Jayatissa, L. P.
  • Koedam, N.

Abstract
    Long-term decadal retrospection in spatio-temporal imagery analyses can only be carried out using aerial photographs, which are still the most detailed remotely sensed data available. Visual interpretation of such imagery is most efficient and inexpensive in the light of ecosystem monitoring research in developing countries, which are often unable to cope with the development or the cost of acquisition of commercial space-borne imaging (e.g. IKONOS, Quickbird). In this light, the present paper explicitly analyses the methodological use of image attributes of air-borne imagery from mangrove forests, and investigates the consistency and constraints of mangrove image attributes in visually interpreted air-borne imagery. Six image attributes are analysed, and their application is illustrated using various mangrove sites in Kenya and Sri Lanka. Comparison of identification keys reveals that minor attributes such as 'ecological position' are informative, and that image attributes for a particular species or genus are apparently less plastic and more widely applicable than formerly assumed. Emphasis on compulsory fieldwork is made and constraints related to reflection and interference, amongst others, are discussed.

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