Analysis of runoff components and water residence times in a mesoscale catchment by means of stable isotopes and modeling

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Title:Main Title: Analysis of runoff components and water residence times in a mesoscale catchment by means of stable isotopes and modeling
Description:Abstract: Over the past decades, interpretation of changes in stable isotope signatures of catchment waters have been used to assess hydrological flow paths under different flow conditions and to estimate mean catchment transit times. However, despite of the many studies the timing, flow path, and source behavior of catchments are still not well understood. We will use two coupled models, the Community Land Model (CLM) and ParFlow, to simulate runoff, transit and residence times with high resolution in a mesoscale catchment (Erkensruhr, 45 km²). To achieve this, we will use the particle tracking module of ParFlow and stable isotopes of water as a tracer. The area-integrated simulated water flows and their transit times will be compared to the modeling results of the conceptual model TRANSEP. Two fundamentally different Parameter Optimization Algorithms will be applied for TRANSEP: Ant Colony Optimization (ACO) and DiffeRential Evolution Adaptive Metropolis (DREAM). We will compare parameter estimation results and uncertainty estimations of both algorithms. DYNamic Identifiability Analsis (DYNIA) will be used together with ACO and DREAM to investigate temporal stability of parameter estimations. The spatial distribution of transit times will be investigated along 16 measurement points of the relatively short Wüstebach River (appr. 400 m), to be published in a peer-reviewed scientific journal.
Responsible Party
Creator:Michael Stockinger (Author)
Publisher:CRC/TR32 Database (TR32DB)
Publication Year:2013
Topic
TR32 Topic:Other
Related Subproject:C1
Subject:Keyword: PhD Report
File Details
Filename:Report2_Stockinger_2012.pdf
Data Type:Text - Text
File Size:1.2 MB
Date:Available: 31.05.2012
Mime Type:application/pdf
Data Format:PDF
Language:English
Status:Completed
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Download Permission:Only Project Members
General Access and Use Conditions:According to the TR32DB data policy agreement.
Access Limitations:According to the TR32DB data policy agreement.
Licence:[TR32DB] Data policy agreement
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Specific Information - Report
Report Date:31st of May, 2012
Report Type:PhD Report
Report City:Jülich, Germany
Report Institution:Institute of Bio and Geosciences Agrosphere (IBG-3), Research Center Jülich
Number of Pages:14 (1 - 14)
Further Information:TR32 Student Report Phase II
Metadata Details
Metadata Creator:Michael Stockinger
Metadata Created:04.12.2013
Metadata Last Updated:04.12.2013
Subproject:C1
Funding Phase:2
Metadata Language:English
Metadata Version:V50
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