Dynamics and scales of transmission losses in dryland river systems: a meta-analysis

dc.contributor.authorMazvimavi, Dominic
dc.date.accessioned2022-09-07T10:35:49Z
dc.date.available2022-09-07T10:35:49Z
dc.date.issued2021
dc.description.abstractIn this paper, 245 studies were reviewed to understand approaches used for estimating river channel transmission losses. Findings indicate that regression equations, differential equations, flow routing, experimental approaches and water balances are most widely used. Geographic Information Systems are becoming a convenient framework to display model results showing spatial variability of losses. In the United States, regression equations and experimental approaches involving controlled releases are widely used to assess transmission losses whereas in the dryland regions of Australia, water balance and flow routing approaches are popular. In Africa and Asia, regression equations and water balances are common approaches to estimate transmission losses. By using regression equations on data pooled from studies done in different dryland regions of the world, statistically significant (p<0.05) relationships were observed between transmission loss volume and, reach length, inflow, flow contributing area and runoff coefficient. Overall, the review underscores the importance of channel and catchment characteristics in shaping the dynamics of transmission losses. Two main limitations of the current approaches are that they are site-specific and require high amounts of data not always available in dryland regions due to sparse network of monitoring stations. The review also highlights existing knowledge gaps and future research needs.en_US
dc.identifier.citationMujere, N. et al., 2021. Dynamics and scales of transmission losses in dryland river systems: A meta-analysis. Australasian Journal of Water Resources, pp.1–15.en_US
dc.identifier.uri10.1080/13241583.2021.1996680
dc.identifier.urihttp://hdl.handle.net/10566/7830
dc.publisherAUSTRALASIAN JOURNAL OF WATER RESOURCESen_US
dc.subjectdrylandsen_US
dc.subjectmeta-analysisen_US
dc.subjectriver channel transmission lossesen_US
dc.subjectregression equationsen_US
dc.subjectdifferential equationsen_US
dc.titleDynamics and scales of transmission losses in dryland river systems: a meta-analysisen_US
dc.typeArticleen_US

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