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Using Interactive Recession Curve Analysis to Specify a General Catchment Storage Model : Volume 1, Issue 1 (30/11/-0001)

By Lamb, R.

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Book Id: WPLBN0004009985
Format Type: PDF Article :
File Size: Pages 13
Reproduction Date: 2015

Title: Using Interactive Recession Curve Analysis to Specify a General Catchment Storage Model : Volume 1, Issue 1 (30/11/-0001)  
Author: Lamb, R.
Volume: Vol. 1, Issue 1
Language: English
Subject: Science, Hydrology, Earth
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
-0001
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Beven, K., & Lamb, R. (-0001). Using Interactive Recession Curve Analysis to Specify a General Catchment Storage Model : Volume 1, Issue 1 (30/11/-0001). Retrieved from http://www.ebooklibrary.org/


Description
Description: Centre for Research on Environmental Systems, Lancaster University, Lancaster, LA1 4YQ UK. Email: R.Lamb@ua.nwl.ac.uk, K.Beven@lancaster.ac.uk. An analysis of hydrograph recessions can be used to identify the parameters of a conceptual catchment storage irnodel and, with the advent of large-scale digital data storage and automated logging systems, it has become desirable to automate recession curve analysis. Various studies have thus reported algorithms used to infer 'baseflow' storage models automatically from recession data. Such algorithms commonly operate by maximising the fit of measured recession data to some a priori function. Here, an alternative approach is taken in which the appropriate form for a catchment saturated zone store is investigated by combining observed recession data to form a Master Recession Curve (MRC). This is done within a software package that offers automated functions to help select recession periods suitable for inclusion within the MRC. These recession periods are combined automatically to form a prototype MRC, which can be modified interactively to overcome problems such as unrepresentative or sparse data. The master recession for a catchment is used to calculate an empirical catchment-averaged discharge-relative storage (QΔS) relationship. The method is considered to be general because the QΔS relationship may be of arbitrary form. Examples are given, showing the derivation for three catchments of different QΔS functions.

Summary
Using interactive recession curve analysis to specify a general catchment storage model

 

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