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|a Sediment Source Determination by Fingerprinting: Ruvu River Basin, Tanzania |h [electronic resource]. |
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|a Miami, Florida : |b Florida International University, |c 2014. |
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|a Please contact the owning institution for licensing and permissions. It is the users responsibility to ensure use does not violate any third party rights. |
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|a This study was designed to determine the primary sources of suspended sediments into the
Ruvu River so that detailed follow-up studies can be planned and remediation measures
undertaken.
A sediment fingerprinting technique was utilized to identify the major sources of sediment
within the basin. Suspended sediment laden filters and soil samples were collected throughout
the basin and used to develop composite fingerprint signatures for each source. Suspended
sediment laden filters were also collected at the furthermost downstream point and analyzed
to determine the relative proportions of each of the sources in that sample.
In addition to a statistical technique utilizing Bayesian Inference and a Markov Chain Monte
Carlo, this study used a very robust method of calculating error. As with any sediment study,
error rates must be carefully considered to give credibility to any result.
We found that two specific areas within the upper catchment of the Ruvu Basin were
contributing disproportionately high amounts of sediment compared to the other potential
sources. These two areas make up only 3% of the study area yet potentially contribute over
30% of the suspended sediment load in the Ruvu River. One area in particular, “m”, is an ideal
candidate for follow-up soil conservation activities due to its relatively small size and
disproportionately large contribution of sediments. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a Florida International University. |
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|a Global Water for Sustainability Program (Florida International University). |
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|a dpSobek |c Mara River Basin |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI14103143/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/14/10/31/43/00001/Ruvu-Fingerprinting-Report-DRAFT-25Oct2013-coveredthm.jpg |
