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Assessment of shoreline changes in the western side of Zanzibar channel using satellite remote sensing / Y.W. Shaghude in International Journal of Remote Sensing IJRS, vol 24 n° 23 (December 2003)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 24 n° 23 (December 2003) . - pp 4953 - 4967 Titre : Assessment of shoreline changes in the western side of Zanzibar channel using satellite remote sensing Type de document : Article/Communication Auteurs : Y.W. Shaghude, Auteur ; K.O. Wannas, Auteur ; B. Lunden, Auteur Année de publication : 2003 Article en page(s) : pp 4953 - 4967 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] analyse diachronique [Termes IGN] delta [Termes IGN] effondrement de terrain [Termes IGN] littoral [Termes IGN] précipitation [Termes IGN] sédiment [Termes IGN] Tanzanie [Termes IGN] télédétection spatiale Résumé : (Auteur) The present study uses a satellite remote sensing approach for assesssing coastal sediment dynamics in the western side of the Zanzibar channel, Tanzania. Four Landsat images (1986, 1998, 1999 and 2000) were used for the study. investigation of the four images revealed that the Ruvu delta north of the river mouth has been growing rapidly, especially between 1986 and 1998, with an annual northward linear growth rate of about 133m year -1 and an annual areal growth rate of about 1 km2 every 3 years. The study identified a palaeo-shoreline feature that is parallel to the present shoreline and located about 1.9 km inland from the present shoreline. An important sediment contributor to river Ruvu is derived from the Uluguru Mountains, a tropical mountainous area located about 200 km from the coastline of the Tanzania mainland. The working hypothesis is that either the observed growth of the delta occured at a gradual rate between 1986 and 1998 or it was mainly an episodic event related to the extreme rainfall events such as the 1997/98 El Nino-Southern Oscillation (ENSO) event, which was associated with extreme rainfall and widespread landslides. Numéro de notice : A2003-316 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/0143116031000102430 En ligne : https://doi.org/10.1080/0143116031000102430 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22612 [article]

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080-03231	RAB	Revue	Centre de documentation	En réserve L003	Exclu du prêt