Development of an environmental flow implementation and monitoring approach: using digital technology to construct accurate 3D hydrodynamic models of a river reach to monitor the implementation of environmental flows

Simple item page
cg.contributor.affiliationUniversity of Mpumalangaen_US
cg.contributor.affiliationUniversity of KwaZulu-Natalen_US
cg.contributor.affiliationGroundTruth (Pty. Ltd), South Africaen_US
cg.contributor.donorCGIAR Trust Funden_US
cg.contributor.initiativeDigital Innovationen_US
cg.coverage.regionSouthern Africaen_US
cg.coverage.subregionLimpopo River Basinen_US
cg.coverage.subregionIncomati Basinen_US
cg.identifier.iwmilibraryH052679en_US
cg.identifier.urlhttps://www.iwmi.cgiar.org/Publications/Other/PDF/development_of_an_environmental_flow_implementation_and_monitoring_approach_using_digital_technology_to_construct_accurate_3d_hydrodynamic_models_of_a_river_reach_to_monitor_the_implementation_of_enviro.pdfen_US
cg.placeColombo, Sri Lankaen_US
cg.river.basinLIMPOPOen_US
dc.contributor.authorO'Brien, G. C.en_US
dc.contributor.authorKaiser-Reichel, A.en_US
dc.contributor.authorMcNeil, T.en_US
dc.contributor.authorvan der Waal, B. W.en_US
dc.contributor.authorHuchzermeyer, N.en_US
dc.contributor.authorSingh, S.en_US
dc.contributor.authorPringle, J.en_US
dc.contributor.authorHarvey, T. A.en_US
dc.contributor.authorMaharaj, U.en_US
dc.contributor.authorSingh, K.en_US
dc.contributor.authorCronje, L.en_US
dc.date.accessioned2024-02-16T17:27:10Zen_US
dc.date.available2024-02-16T17:27:10Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/139493en_US
dc.titleDevelopment of an environmental flow implementation and monitoring approach: using digital technology to construct accurate 3D hydrodynamic models of a river reach to monitor the implementation of environmental flowsen_US
dcterms.abstractThis study presents a comprehensive approach to developing an effective monitoring system for e- flow implementation in river ecosystems using high-resolution 3D modeling and modern sensor technology. The research focuses on the Limpopo and Incomati basins in Southern Africa. Environmental flows (e-flows) represent the volume and quality of water that needs to remain in a river to sustain the ecosystem and hence all those who benefit from a functional ecosystem (thus, society and the economy). The objective of this study is to support the implementation of e-flows around the world which has been poor despite a wide-spread acceptance of the philosophy. While monitoring e-flow volumes (and quality) is a relatively simple matter, monitoring the effectiveness of the prescribed e-flow requires that evidence of a sustained ecosystem is collected, ideally together with evidence of the impact on beneficiaries of that ecosystem. This project investigates whether appropriate digital tools and real-time data could assist with the management, education, awareness and implementation of e-flows. This project includes digital approaches to monitoring the change in river ecosystems following the implementation of e-flows in two river basins in southern Africa, facilitating an adaptive management approach for sustainable water resources management globally. This report documents the development of an e-flow implementation monitoring approach based on a high-resolution 3D model (2D hydraulic modelling) of river sites that would be used to document changes in river ecosystem structure over time. This will be linked to the use of modern sensors that will be attached to fish as well as to hard substrates that will enable real-time monitoring of the ecological acceptability of e-flow implementation including water quantity and quality management. Coupled with this will be an upgrade of the PROBFLO e-flow framework to make it more accessible and usable, thus facilitating the use of the model outputs by basin authorities for long- term e-flow management that would include investigation of future scenarios. The project aims to advance the PROBFLO e-flow framework, integrating 1D, 2D, and 3D hydraulic modeling to understand the intricate relationships between river flow dynamics and habitat availability. The study emphasizes the importance of eco-hydraulic models in predicting river changes and their impact on aquatic habitats, employing advanced survey technologies like LiDAR, ADCP, and hydrographic surveys.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.bibliographicCitationO’Brien, G. C.; Kaiser-Reichel, A.; McNeil, T.; van der Waal, B. W.; Huchzermeyer, N.; Singh, S.; Pringle, J.; Harvey, T. A.; Maharaj, U.; Singh, K.; Cronje, L. 2023. Development of an environmental flow implementation and monitoring approach: using digital technology to construct accurate 3D hydrodynamic models of a river reach to monitor the implementation of environmental flows. Colombo, Sri Lanka: International Water Management Institute (IWMI). CGIAR Initiative on Digital Innovation. 25p.en_US
dcterms.extent25p.en_US
dcterms.issued2023-12-01en_US
dcterms.languageenen_US
dcterms.licenseCC-BY-4.0en_US
dcterms.publisherInternational Water Management Institute (IWMI). CGIAR Initiative on Digital Innovationen_US
dcterms.subjectwater managementen_US
dcterms.subjectenvironmental flowsen_US
dcterms.subjectmodellingen_US
dcterms.typeReporten_US

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
development_of_an_environmental_flow_implementation_and_monitoring_approach_using_digital_technology_to_construct_accurate_3d_hydrodynamic_models_of_a_river_reach_to_monitor_the_implementation_of_enviro.pdf
Size:
3.79 MB
Format:
Adobe Portable Document Format
Description:
Download full publication
Download

License bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

IWMI Reports
CGIAR Initiative on Digital Innovation
Digital Innovation (DIG)