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: | |
| Language: | English |
| Status: | Completed |
Constraints
| 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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| Metadata Downloads: | 0 |
| Dataset Downloads: | 0 |
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