[1234] - Interception effects on stable isotope driven streamwater transit time estimates

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Citation
Stockinger, M., Lücke, A., McDonnell, J., Diekkrüger, B., Vereecken, H., Bogena, H., 2015. Interception effects on stable isotope driven streamwater transit time estimates. Geophysical Research Letters, 5299 - 5308. DOI: 10.1002/2015GL064622.
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Identification
Title(s):Main Title: Interception effects on stable isotope driven streamwater transit time estimates
Description(s):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(s):DOI: 10.1002/2015GL064622
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
Creator(s):Author: Michael Stockinger
Author: Andreas Lücke
Author: Jeffrey McDonnell
Author: Bernd Diekkrüger
Author: Harry Vereecken
Author: Heye Bogena
Publisher:Wiley, Hoboken, NJ, USA
Topic
TR32 Topic:Other
Related Sub-project(s):C1
Subject(s):CRC/TR32 Keywords: Hydrological Modelling
File Details
File Name:Stockinger2015Interception.pdf
Data Type:Text
File Size:1078 kB (1.053 MB)
Date(s):Available: 2015-07-08
Mime Type:application/pdf
Data Format:PDF
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
North:-no map data
East:-
South:-
West:-
Measurement Region:Germany
Measurement Location:--Germany--
Specific Informations - Publication
Status:Published
Review:PeerReview
Year:2015
Type:Article
Article Type:Journal
Source:Geophysical Research Letters
Page Range:5299 - 5308
Metadata Details
Metadata Creator:Michael Stockinger
Metadata Created:2016-02-23
Metadata Last Updated:2016-02-23
Subproject:C1
Funding Phase:2
Metadata Language:English
Metadata Version:V41
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Metadata Downloads:0
Dataset Downloads:3
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