During the late 1960s and early 1970s, in conjunction with the UNESCO International Hydrological Decade (IHD), studies of the hydrology of the Tarfala Valley catchment were started in earnest. River discharge measurements had been carried out during the 1950s and 1960s, but with the construction of a fixed gauging station called Rännan, true monitoring of hydrology could be initiated.

Monitoring data

Hydrological measurements are still carried out at Rännan as well as at an additional upstream station Lillsjön close to the Tarfala research station (TRS). Tarfala constitutes the only gauged alpine catchment in Sweden.

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Research data

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For details regarding these data and before using the them, please contact the following researchers.

  • Dr. Helen E. Dahlke; Department of Land, Air, and Water Resources; University of California, Davis; +1 530 302 5358;
    hdahlke AT ucdavis DOT edu
  • Dr. Steve W. Lyon; Department of Physical Geography and Quaternary Geology; Stockholm University; +46 8 16 4888;
    steve DOT lyon AT natgeo DOT su DOT se


Hydrologisk verksamhet i Tarfala, 1974–1982
Bronge, C.
Dept. Physical Geography, University of Stockholm Forskningsrapport, Vol. 62 (1985), 81 p. ISSN 0346-7406.
Early melt season snowpack isotopic evolution in the Tarfala valley, northern Sweden
Dahlke H.E., Lyon S.W.
Annals of Glaciology, Volume 54, Number 62, pp. 149–156(8) (2013). DOI:10.3189/2013AoG62A232
Contrasting trends in floods for two sub-arctic catchments in northern Sweden — does glacier presence matter?
Dahlke H.E., Lyon S.W., Stedinger J.R., Rosqvist G., and Jansson P.
Hydrology and Earth System Sciences, Vol 16, pp. 2123–2141 (2012). DOI:10.5194/hess-16-2123-2012
Isotopic investigation of runoff generation in a glacierized catchment in northern Sweden
Dahlke H.E., Lyon S.W., Jansson P., Karlin T. and Rosqvist G.
Hydrological Processes (2013). DOI:10.1002/hyp.9668
Suspended sediment transport and discharge of Tarfalajåkk, the proglacial stream of Storglaciären, Northern Sweden, 1980–1990
Schneider, T., and Bronge, C.
Forskningsrapportserien STOU-NG 92 (1992), 28 p. ISSN 0346-7406.
Suspended sediment transport in the Storglaciären drainage basin
Schneider, T., and Bronge, C.
Geografiska Annaler: Series A, Physical Geography, Vol. 78, No. 2/3 (1999), pp. 155–162.

Map of the Tarfala Valley, Storglaciären and the hydrological monitoring site Rännan.

Map of the Tarfala Valley drainage basin showing the location of the hydrological monitoring site Rännan.

A Picture of the hydrological monitoring site Rännan.

A Picture of the hydrological monitoring site Rännan.