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Relationship between the Flow data on the Unit Watersheds and on the Stream Flow Monitoring Network  

Park, Jun Dae (Water Pollution Load Management Research Division, Water Environment Research Department, National Institute of Environmental Research)
Oh, Seung Young (Water Pollution Load Management Research Division, Water Environment Research Department, National Institute of Environmental Research)
Publication Information
Journal of Korean Society on Water Environment / v.29, no.1, 2013 , pp. 55-65 More about this Journal
Abstract
It is very difficult to apply stream flow data directly to the management of Total Maximum Daily Loads because there are some differences between the unit watershed and the stream flow monitoring network in their characteristics such as monitoring locations and its intervals. Flow duration curve can be developed by linking the daily flow data of stream monitoring network to 8 day interval flow data of the unit watershed. This study investigated the current operating conditions of the stream flow monitoring network and the flow relationships between the unit watershed and the stream flow monitoring network. Criteria such as missing and zero value data, and correlation coefficients were applied to select the stream flow reference sites. The reference sites were selected in 112 areas out of 142 unit watersheds in 4 river basins, where the stream flow observations were carried out in relatively normal operating conditions. These reference sites could be utilized in various ways such as flow variation analysis, flow duration curve development and so on for the management of Total Maximum Daily Loads.
Keywords
8 day interval flow data; Daily flow data; Flow duration curve; Stream flow monitoring network; Stream flow reference sites; Total maximum daily loads; Unit watershed;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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