Interpreting Characteristic Drainage Timescale Variability across Kilombero Valley, Tanzania

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dc.creatorLyon, Steve W.
dc.creatorKoutsouris, Alexander
dc.creatorScheibler, Friedemann
dc.creatorJarsjö, Jerker
dc.creatorMbanguka, Rene
dc.creatorTumbo, Madaka
dc.creatorRobert, Keven K.
dc.creatorSharma, Asha N.
dc.creatorvan der Velde, Ype
dc.date2016-05-26T09:38:13Z
dc.date2016-05-26T09:38:13Z
dc.date2015
dc.date.accessioned2018-04-18T11:18:00Z
dc.date.available2018-04-18T11:18:00Z
dc.descriptionWe explore seasonal variability and spatiotemporal patterns in characteristic drainage timescale (K) estimated from river discharge records across the Kilombero Valley in central Tanzania. K values were determined using streamflow recession analysis with a Brutsaert–Nieber solution to the linearized Boussinesq equation. Estimated K values were variable, comparing between wet and dry seasons for the relatively small catchments draining upland positions. For the larger catchments draining through valley bottoms, K values were typically longer and more consistent across seasons. Variations in K were compared with long-term averaged, Moderate-resolution Imaging Spectroradiometer-derived monthly evapotranspiration. Although the variations in K were potentially related to evapotranspiration, the influence of data quality and analysis procedure could not be discounted. As such, even though recession analysis offers a potential approach to explore aquifer release timescales and thereby gain insight to a region's hydrology to inform water resources management, care must be taken when interpreting spatiotemporal shifts in K in connection with process representation in regions like the Kilombero Valley
dc.identifierLyon, S.W., Koutsouris, A., Scheibler, F., Jarsjö, J., Mbanguka, R., Tumbo, M., Robert, K.K., Sharma, A.N. and Velde, Y., 2015. Interpreting characteristic drainage timescale variability across Kilombero Valley, Tanzania. Hydrological Processes, 29(8), pp.1912-1924.
dc.identifierhttp://hdl.handle.net/20.500.11810/2258
dc.identifier10.1002/hyp.10304
dc.identifier.urihttp://hdl.handle.net/20.500.11810/2258
dc.languageen
dc.subjectCharacteristic drainage timescale
dc.subjectStreamflow recession analysis
dc.subjectKilombero Valley
dc.subjectWater resources management
dc.titleInterpreting Characteristic Drainage Timescale Variability across Kilombero Valley, Tanzania
dc.typeJournal Article, Peer Reviewed

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