Episodic Atmospheric Changes and Their Impact on the Hydrography of Coastal Waters in Tanzania

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dc.contributor.authorNyandwi, Ntahondi
dc.contributor.authorDubi, Alfonse M.
dc.date.accessioned2016-07-21T14:01:26Z
dc.date.available2016-07-21T14:01:26Z
dc.date.issued2001
dc.description.abstractA shift in the time of occurrence and duration of the rainy and dry seasons has been observed over Tanzania and the East African region in recent years. During 1998, El Niño rains produced substantial fresh water and sediment supply to the coastal zone. During that period, large sand bodies were deposited off river mouths and at stream entrances. Hydrographic measurements showed a persistent decrease in salinity and temperature of inshore waters indicating that coastal waters have been trapped along the shore. Such environmental changes could have negative effects on the biodiversity of the coastal zone. Based on beach profile measurements, the shoreline was predominantly eroding prior to the rains but accreted during the El-Niño rains. The tidal flats received a larger volume of sand. While the beach and tidal flats were receiving this supply of sand, river banks eroded as channels deepened and widened. In many instances, newly cut flood channels have remained semi-permanent serving as tidal inlets leading to tidal inundation of the low lying areas behind the beaches. These observations point to the significance of episodic events in maintaining or shaping the coastal zone.en_US
dc.identifier.citationNyandwi, N. and Dubi, A.M., 2001. Episodic atmospheric changes and their impact on the hydrography of coastal waters in Tanzania. Climate Research, 18(1-2), pp.157-162.en_US
dc.identifier.doi10.3354/cr018157
dc.identifier.urihttp://hdl.handle.net/20.500.11810/3356
dc.language.isoenen_US
dc.subjectHydrographyen_US
dc.subjectEl-Niño rainsen_US
dc.subjectBeach profilesen_US
dc.subjectErosionen_US
dc.subjectAccretionen_US
dc.titleEpisodic Atmospheric Changes and Their Impact on the Hydrography of Coastal Waters in Tanzaniaen_US
dc.typeJournal Article, Peer Revieweden_US
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