Sediment control interventions and river flow dynamics: impact on sediment entry into the large canals

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cg.contributor.affiliationInternational Water Management Instituteen
cg.contributor.crpWater, Land and Ecosystems
cg.coverage.countryIndia
cg.coverage.countryPakistan
cg.coverage.iso3166-alpha2IN
cg.coverage.iso3166-alpha2PK
cg.coverage.regionAsia
cg.coverage.regionSouthern Asia
cg.creator.identifierMuhammad Tousif Bhatti: 0000-0001-7834-6114en
cg.identifier.doihttps://doi.org/10.1007/s12665-015-4604-3en
cg.identifier.wlethemeLand and Water Productivityen
cg.issn1866-6280en
cg.issn1866-6299en
cg.issue7en
cg.journalEnvironmental Earth Sciencesen
cg.river.basinCHENAB RIVERen
cg.river.basinMARALA RAVI LINK CANALen
cg.river.basinUPPER CHENAB CANALen
cg.volume74en
dc.contributor.authorAshraf, M.en
dc.contributor.authorBhatti, Muhammad Tousifen
dc.contributor.authorShakir, A.S.en
dc.contributor.authorTahir, A.A.en
dc.contributor.authorAhmad.A.en
dc.date.accessioned2016-11-01T13:40:17Zen
dc.date.available2016-11-01T13:40:17Zen
dc.identifier.urihttps://hdl.handle.net/10568/77546
dc.titleSediment control interventions and river flow dynamics: impact on sediment entry into the large canalsen
dcterms.abstractAt Marala barrage, two canals, i.e. Marala Ravi Link Canal (MRLC) and Upper Chenab Canal (UCC) off-take from left side of the River Chenab. MRLC has a very old history of experiencing sedimentation issues. Several attempts have been made to counterfoil or minimize this problem in the recent past. Two remarkable measures are the remodeling of MRLC in 2000-2001 (in-tervention-1) and the shifting of the confluence point of a heavily sediment-laden upstream tributary of the Chenab River by construction of a spur dike in 2004 (intervention-2). This paper investigates the effectiveness of these structural interventions as sedimentation control measures. The baseline period is selected from 1997 to 2000 and the impact is analyzed for two post-intervention time steps, i.e. evaluation period-1 ranging from 2001 to 2004 and evaluation period-2 from 2005 to 2011. Results obtained from double mass analysis revealed that sediment load increased by 33 and 8 % due to intervention-1, while decreased by 12 and 22 % due to intervention-2 in MRLC and UCC, respectively. The results suggest that monsoon floods are mainly responsible for sediment loading in the canals (66 % for UCC and 73 % for MRLC), supported by the finding that effective discharge (1900 m3 s-1) is almost twice the mean annual river discharge. The discharge classes between 900 and 2900 m3 s- 1 are mainly responsible for major proportion (89 % in MRLC and 86 % in UCC) of the total sediment load over the 15-year study period. The intervention-1 could not minimize the sediment entry into the canals; rather it aggravated the situation. The intervention-2, however, proved a useful structural measure in this regard.en
dcterms.accessRightsLimited Access
dcterms.available2015-06-17en
dcterms.bibliographicCitationAshraf, M.; Bhatti, Muhammad Tousif; Shakir, A. S.; Tahir, A. A.; Ahmad. A. 2015. Sediment control interventions and river flow dynamics: impact on sediment entry into the large canals. Environmental Earth Sciences, 8p. (Online first). doi: http://dx.doi.org/10.1007/s12665-015-4604-3en
dcterms.extentpp. 5465-5474en
dcterms.issued2015-10en
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherSpringeren
dcterms.subjectsedimentationen
dcterms.subjectriversen
dcterms.subjectstream flowen
dcterms.subjectmonsoon climateen
dcterms.subjectfloodingen
dcterms.subjectcanal irrigationen
dcterms.subjectwater yielden
dcterms.subjectflow dischargeen
dcterms.typeJournal Article

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