liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Influence of residence time analyses on estimates of wetland hydraulics and pollutant removal
Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, The Institute of Technology.
Swedish University of Agriculture Science, Sweden .
Swedish University of Agriculture Science, Sweden .
Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, The Institute of Technology.ORCID iD: 0000-0001-6128-1051
2013 (English)In: Journal of Hydrology, ISSN 0022-1694, E-ISSN 1879-2707, Vol. 501, 1-12 p.Article in journal (Refereed) Published
Abstract [en]

Hydraulic tracer studies are frequently used to estimate wetland residence time distributions (RTDs) and ultimately pollutant removal. However, there is no consensus on how to analyse these data. We set out to (i) review the different methods used and (ii) use simulations to explore how the data analysis method influences the quantification of wetland hydraulics and pollutant removal. The results showed that the method influences the water dispersion (N) most strongly and the removal least strongly. The influence increased with decreasing effective volume ratio (e) and N, indicating a greater effect of the method in wetlands with low effective volume and high dispersion. The method of moments with RTD truncation at 3 times the theoretical residence time (t(n)) and tracer background concentration produced the most dissimilar parameters. The most similar parameters values were those for gamma modelling and the method of moments with RTD truncation at tracer background concentration. For correct removal estimates, e was more important than N. However, the results from the literature review and simulations indicated that previously published articles may contain overestimated e and underestimated N values as a result of frequent RTD truncations at 3t(n), when using the method of moments. As a result, the removal rates may also be overestimated by as much as 14% compared to other truncation methods or modelling. Thus, it is recommended that wetland hydraulic tracer studies should use the same method, specifically, RTD truncation. We conclude that the choice of tracer data analysis method can greatly influence the quantifications of wetland hydraulics and removal rate.

Place, publisher, year, edition, pages
Elsevier , 2013. Vol. 501, 1-12 p.
Keyword [en]
Gamma model, Removal rate, Residence time analysis, Tracer, Trapezoid rule, Wetland hydraulics
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-100315DOI: 10.1016/j.jhydrol.2013.07.022ISI: 000325388300001OAI: oai:DiVA.org:liu-100315DiVA: diva2:661481
Note

Funding Agencies|Department for Research Cooperation (SAREC) of the Swedish International Development Agency (Sida)||Angpanneforeningens Research Foundation||Wala and Folke Danielsson fund||

Available from: 2013-11-04 Created: 2013-11-04 Last updated: 2017-12-06

Open Access in DiVA

No full text

Other links

Publisher's full text

Authority records BETA

Bodin, HristinaMilberg, Per

Search in DiVA

By author/editor
Bodin, HristinaMilberg, Per
By organisation
BiologyThe Institute of Technology
In the same journal
Journal of Hydrology
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 56 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf