Change search
ReferencesLink to record
Permanent link

Direct link
How old is streamwater?: Open questions in catchment transit time conceptualization, modelling and analysis
Show others and affiliations
2010 (English)In: Hydrological Processes, ISSN 0885-6087, E-ISSN 1099-1085, Vol. 24, no 12, 1745-1754 p.Article in journal (Refereed) Published
Abstract [en]

The time water spends travelling subsurface through a catchment to the stream network (i.e. the catchment water transit time) fundamentally describes the storage, flow pathway heterogeneity and sources of water in a catchment. The distribution of transit times reflects how catchments retain and release water and solutes that in turn set biogeochemical conditions and affect contamination release or persistence. Thus, quan- tifying the transit time distribution provides an important constraint on biogeochemical processes and catchment sensitivity to anthropogenic inputs, contamination and land-use change. Although the assumptions and limitations of past and present transit time modelling approaches have been recently reviewed (McGuire and McDonnell, 2006), there remain many fundamental research challenges for understanding how transit time can be used to quantify catchment flow processes and aid in the development and testing of rainfall–runoff models. In this Commen- tary study, we summarize what we think are the open research questions in transit time research. These thoughts come from a 3-day workshop in January 2009 at the International Atomic Energy Agency in Vienna. We attempt to lay out a roadmap for this work for the hydrological commu- nity over the next 10 years. We do this by first defining what we mean (qualitatively and quantitatively) by transit time and then organize our vision around needs in transit time theory, needs in field studies of tran- sit time and needs in rainfall – runoff modelling. Our goal in presenting this material is to encourage widespread use of transit time information in process studies to provide new insights to catchment function and to inform the structural development and testing of hydrologic models.

Place, publisher, year, edition, pages
John Wiley & Sons, 2010. Vol. 24, no 12, 1745-1754 p.
Keyword [en]
National Category
Geosciences, Multidisciplinary Geophysics
URN: urn:nbn:se:kth:diva-58434DOI: 10.1002/hyp.7796ISI: 000279821800016ScopusID: 2-s2.0-77149172751OAI: diva2:473052
QC 20120120Available from: 2012-01-20 Created: 2012-01-05 Last updated: 2012-01-20Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopusJournal website

Search in DiVA

By author/editor
Wörman, Anders
By organisation
Hydraulic Engineering
In the same journal
Hydrological Processes
Geosciences, MultidisciplinaryGeophysics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 119 hits
ReferencesLink to record
Permanent link

Direct link