SISS model data and script

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Resource type: Composite Resource
Storage: The size of this resource is 62.4 KB
Created: Apr 17, 2019 at 7:05 a.m.
Last updated: May 20, 2020 at 4:36 p.m.
DOI: 10.4211/hs.66e45a2c6b724b9da50f036bf3216a19
Citation: See how to cite this resource
Sharing Status: Published
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This resource is linked to the following manuscript:
Lutz et al.: How Important is Denitrification in Riparian Zones? Combining Endmember Mixing and Isotope Modeling to Quantify Nitrogen Removal Processes, in review for Water Resources Research

This resource provides concentration and isotope data in a groundwater well field along a 2 km stream section in central Germany. We developed a mathematical model combining endmember mixing and isotope modeling to account for mixing of river water and groundwater, and quantify nitrate transformation at the study site (i.e., the SISS model). This enabled us to explicitly determine the extent of denitrification (as permanent nitrate removal process) and nitrate removal by additional processes associated with negligible isotope fractionation (e.g., plant uptake, microbial assimilation and dissimilatory nitrate reduction to ammonium) in the riparian system.

*the SISS model code
*chloride and nitrate concentration data from the field site
*nitrate and stable water isotope data from the field site

Subject Keywords

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Resource Level Coverage


Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Selke near Meisdorf



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People or Organizations that contributed technically, materially, financially, or provided general support for the creation of the resource's content but are not considered authors.

Name Organization Address Phone Author Identifiers
Kerstin Puschendorf Helmholtz Centre for Environmental Research - UFZ
Toralf Keller Helmholtz Centre for Environmental Research - UFZ
Jürgen Steffen Helmholtz Centre for Environmental Research - UFZ
Andreas Schoßland Helmholtz Centre for Environmental Research - UFZ
Helko Kotas Helmholtz Centre for Environmental Research - UFZ
Sibylle Mothes Helmholtz Centre for Environmental Research - UFZ
Oliver Bednorz Helmholtz Centre for Environmental Research - UFZ
Martina Neuber Helmholtz Centre for Environmental Research - UFZ

How to Cite

Lutz, S., N. Trauth, A. Musolff, B. M. v. Breukelen, K. Knöller, J. H. Fleckenstein (2019). SISS model data and script, HydroShare,

This resource is shared under the Creative Commons Attribution CC BY.


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