Identifying manning roughness coefficient using automatic calibration method and simulation of pollution incidents in the Nile River, Egypt

cg.contacto.abouelsaad@campus.tu-berlin.deen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerNational Water Research Center - NWRCen_US
cg.contributor.centerTechnical University of Berlin - TUBERen_US
cg.contributor.centerMansoura Universityen_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.countryEGen_US
cg.coverage.regionNorthern Africaen_US
cg.creator.idOmar, Mohie: 0000-0003-0525-5398en_US
cg.identifier.doihttps://dx.doi.org/10.1016/j.ejrh.2024.101908en_US
cg.isijournalISI Journalen_US
cg.journalJournal of Hydrology: Regional Studiesen_US
cg.subject.agrovocnile riveren_US
cg.subject.agrovochydrodynamicsen_US
cg.volume55en_US
dc.contributorHassan, Azizen_US
dc.contributorOmar, Mohieen_US
dc.contributorHinkelmann, Reinharden_US
dc.creatorAbouelsaad, Omniaen_US
dc.date.accessioned2024-08-15T18:31:16Z
dc.date.available2024-08-15T18:31:16Z
dc.description.abstractStudy region A reach of the Nile River located between Naga Hammadi barrage and Asyut barrage, Egypt Study focus An accurate representation of hydrodynamics of an important water source helps cope with expected future climate changes, pollution incidents and water quality problems. Here, a comparison between HEC-RAS 1D and TELEMAC-2D model was conducted by identifying different Manning coefficients. Moreover, an automatic calibration using Dual-Annealing optimization method was applied for first time to calibrate the model with non-uniform Manning coefficients. The transport of tracer (pollution) was simulated by computing tracer residence times. Pollution transport scenarios were discussed to draw a picture of pollution incidents which will continue to happen in the future. An equation indicating the relation between flow discharge and residence time was derived to hurriedly help decision makers in water management during sudden pollution incidents. New hydrological insights for the region A model with spatially variable Manning coefficients using TELEMAC-2D was set up and calibrated achieving good accuracyies with average errors of approximately 4 cm and 7 cm between field and simulated water levels for two different discharge scenarios. Moreover, an equation for relation between flow discharge and residence time was derived producing a strong correlation coefficient of 0.95. This study, integrating advanced hydrodynamic models and automatic calibration techniques, provides a robust framework for assessing and managing water resource challenges under varying flow conditions.en_US
dc.formatPDFen_US
dc.identifierhttps://mel.cgiar.org/reporting/downloadmelspace/hash/905d7cc254ea66bf152c4d7cabbc0fc3en_US
dc.identifier.citationOmnia Abouelsaad, Aziz Hassan, Mohie Omar, Reinhard Hinkelmann. (30/7/2024). Identifying manning roughness coefficient using automatic calibration method and simulation of pollution incidents in the Nile River, Egypt. Journal of Hydrology: Regional Studies, 55.en_US
dc.identifier.statusOpen accessen_US
dc.identifier.urihttps://hdl.handle.net/20.500.11766/69485
dc.languageenen_US
dc.publisherElsevier (12 months)en_US
dc.rightsCC-BY-NC-4.0en_US
dc.sourceJournal of Hydrology: Regional Studies;55,(2024)en_US
dc.subjectoptimizationen_US
dc.subjectmanning coefficienten_US
dc.subjecthec-rasen_US
dc.subjecttelemacen_US
dc.titleIdentifying manning roughness coefficient using automatic calibration method and simulation of pollution incidents in the Nile River, Egypten_US
dc.typeJournal Articleen_US
dcterms.available2024-07-30en_US
mel.impact-factor4.7en_US

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