Malalcahuello Catchment

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The Malalcahuello Catchment is sometimes also called the catchment of the Tres Arroyos.

Contents

Location

On the southern slope of the volcano Lonquimay, IXth Region, Southern Chile

Catchment size

ca. 6 km²

Climate

humid-temperate with altitudinal effects, snow in higher altitudes during winter

Geology

volcanic ashes, andesite

Topography

steep slopes, elevations range from 1120 m to 1856 m above sea level

Vegetation/Land use

old growth forest, no anthropogenic intervention

Context of investigation

several studies have been carried out in this catchment. Research topics include:

  • Runoff generation processes
  • Sediment transport
  • Debris flow
  • Large woody debris
  • Interception

Measurements/Equipment

Links to project webpages

References

Blume T., Zehe E., Bronstert A. (2007): Rainfall runoff response, event-based runoff coefficients and hydrograph separation. Hydrological Sciences Journal. 52: 843-862.
Blume T., Zehe E., Bronstert A. ((2009): Use of soil moisture dynamics and patterns at different spatio-temporal scales for the investigation of subsurface flow processes. Hydrology and Earth System Sciences, 13(7), 1215-1233.
Blume T., Zehe E., Reusser D.E., Iroumé A., Bronstert A. (2008): Investigation of runoff generation in a pristine, poorly gauged catchment in the Chilean Andes. I: A multi-method experimental study. Hydrological Processes, 22(18), 3661-3675, DOI: 10.1002/hyp.6971.
Blume T., Zehe E., Bronstert, A. (2008): Investigation of runoff generation in a pristine, poorly gauged catchment in the Chilean Andes. II: Qualitative and quantitative use of tracers at three spatial scales. Hydrological Processes, 22(18), 3676-3688, DOI: 10.1002/hyp.6970.
Blume T., Zehe E., Bronstert A. ((2008): Field observations of persistent preferential flowpaths in volcanic ash soils as a result of hydrophobicity. ysopp poster 2008 EGU.
Blume T., Zehe E., Bronstert A. ((2009): Use of soil moisture dynamics and patterns at different spatio-temporal scales for the investigation of subsurface flow processes. Hydrology and Earth System Sciences, 13(7), 1215-1233.
Blume, T. (2008): Hydrological processes in volcanic ash soils - Measuring, modelling and understanding runoff generation in an undisturbed catchment, Dissertation, University of Potsdam, Germany.
Zehe, E., Blume, T., Blöschel, G. (2010): The principle of 'maximum energy dissipation': a novel thermodynamic perspective on rapid water flow in connected soil structures. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, 365(1545), 1377-1386, DOI: 10.1098/rstb.2009.0308.
Zehe, E., Blume, T., Kleidon, A., Ehret, U., Scherer, U., Westhoff, M.(2013): A thermodynamic approach to link self-organization, preferential flow and rainfall–runoff behaviour Hydrol. Earth Syst. Sci., 17, 4297-4322, DOI: 10.5194/hess-17-4297-2013.
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