Open WL Archief (OWA)

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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.

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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, meer

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Beschikbaar in	Auteurs
VLIZ: Open Marine Archive 244270 [ download pdf ]

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Trefwoorden

Kenya Sri Lanka ISW, Kenyan Exclusive Economic Zone [Marine Regions]; ISW, Sri Lanka [Marine Regions] Marien/Kust

Author keywords

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

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

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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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