Change search
ReferencesLink to record
Permanent link

Direct link
Soil frost effects on soil water and runoff dynamics along a boreal transect: 2. Simulations
KTH, Superseded Departments, Land and Water Resources Engineering.
Show others and affiliations
2001 (English)In: Hydrological Processes, ISSN 0885-6087, E-ISSN 1099-1085, Vol. 15, no 6, 927-941 p.Article in journal (Refereed) Published
Abstract [en]

A physically based SVAT-model was rested with soil and snow physical measurements, as well as runoff data fr om an 8600 m(2) catchment in northern Sweden in order to quantify the influence of soil frost on spring snowmelt runoff in a moderately sloped, boreal forest. The model was run as an array of connected profiles cascading to the brook. For three winter seasons (1995-98) it was able to predict the onset and total accumulation of the runoff with satisfactory accuracy. Surface runoff was identified as only a minor fraction of the total runoff occurring during short periods in connection with ice blocking of the water-conducting pores. Little surface runoff, though, does not mean that soil frost is unimportant for spring runoff. Simulations without frost routines systematically underestimated the total accumulated runoff. The possibility of major frost effects appearing in response to specific combinations of weather conditions were also tested. Different scenarios of critical initial conditions for the winter, e.g, high water saturation and delayed snow accumulation leading to an increased frost penetration, were tested. These showed that under special circumstances there is potential for increased spring runoff due to soil frost.

Place, publisher, year, edition, pages
2001. Vol. 15, no 6, 927-941 p.
Keyword [en]
soil frost, boreal forest, snowmelt runoff, SVAT-model, snowmelt runoff, frozen soil, forest soil, infiltration, plots, flow
URN: urn:nbn:se:kth:diva-20602ISI: 000168557500002OAI: diva2:339298
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Jansson, Per-Erik.
By organisation
Land and Water Resources Engineering
In the same journal
Hydrological Processes

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

Total: 49 hits
ReferencesLink to record
Permanent link

Direct link