Interception effects on stable isotope driven streamwater transit time estimates
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| Title: | Main Title: Interception effects on stable isotope driven streamwater transit time estimates |
| Description: | Abstract: Previous studies of streamwater transit time distributions (TTDs) used isotope tracer information from open precipitation (OP) as inputs to lumped watershed models that simulate the stream isotopic composition to estimate TTD. However, in forested catchments passage of rainfall through the canopy will alter the tracer signature of throughfall (TF) via interception. Here we test the effect of using TF instead of OP on TTD estimates. We sampled a 0.39 km2 catchment (Wüstebach, Germany) for a 19 month period using weekly precipitation and stream isotope data to evaluate changes in stream isotope simulation and TTDs. We found that TF had different effects on TTDs for δ18O and δ2H, with TF leading to up to 4 months shorter transit times. TTDs converged for both isotopes only when using TF. TF improved the stream isotope simulations. These results demonstrate the importance of canopy-induced isotope tracer changes in estimating streamwater TTDs in forested catchments. |
| Identifier: | 10.1002/2015GL064622 (DOI) |
| Citation Advice: | Stockinger,M. P., A. Lücke, J. J. McDonnell, B. Diekkrüger, H. Vereecken, and H. R. Bogena (2015), Interception effects on stable isotope driven streamwater transit time estimates, Geophys. Res. Lett., 42, 5299–5308, doi:10.1002/2015GL064622. |
Responsible Party
| Creators: | Michael Stockinger (Author), Andreas Lücke (Author), Jeffrey McDonnell (Author), Bernd Diekkrüger (Author), Harry Vereecken (Author), Heye Bogena (Author) |
| Publisher: | Wiley, Hoboken, NJ, USA |
| Publication Year: | 2016 |
Topic
| TR32 Topic: | Other |
| Related Subproject: | C1 |
| Subject: | Keyword: Hydrological Modelling |
File Details
| Filename: | Stockinger2015Interception.pdf |
| Data Type: | Text - Article |
| File Size: | 1.1 MB |
| Date: | Available: 08.07.2015 |
| Mime Type: | application/pdf |
| Data Format: | |
| Language: | English |
| Status: | Completed |
Constraints
| Download Permission: | Free |
| 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 |
Geographic
Specific Information - Publication
| Publication Status: | Published |
| Review Status: | Peer reviewed |
| Publication Type: | Article |
| Article Type: | Journal |
| Source: | Geophysical Research Letters |
| Number of Pages: | 10 (5299 - 5308) |
Metadata Details
| Metadata Creator: | Michael Stockinger |
| Metadata Created: | 23.02.2016 |
| Metadata Last Updated: | 23.02.2016 |
| Subproject: | C1 |
| Funding Phase: | 2 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Page Visits: | 1107 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 3 |
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