Articles | Volume 20, issue 4
Hydrol. Earth Syst. Sci., 20, 1621–1635, 2016
Hydrol. Earth Syst. Sci., 20, 1621–1635, 2016

Research article 27 Apr 2016

Research article | 27 Apr 2016

Factors influencing stream baseflow transit times in tropical montane watersheds

Lyssette E. Muñoz-Villers et al.

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Cited articles

Asano, Y. and Uchida, T.: Flow path depth is the main controller of mean baseflow transit times in a mountainous catchment, Water Resour. Res., 48, W03512,, 2012.
Asner, G. P., Rudel, T. K., Aide, T. M., Defries, R., and Emerson, R.: A contemporary assessment of change in humid tropical forests, Conserv. Biol., 26, 1386–1395, 2009.
Boorman, D. B., Hollis, J. M., and Lilly, A.: Hydrology of soil types: a hydrologically-based classification of the soils of the United Kingdom, Inst. Hydrol., Wallingford, 26–37, 1995.
Brooks, J. R., Wigington, P. J., Phillips, D. L., Comeleo, R., and Coulombe, R.: Willamette River Basin surface water isoscape (δ18O and δ2H): temporal changes of source water within the river, Ecosphere, 3, 1–21, 2012.
Broxton, P. D., Troch, P. A., and Lyon, S. W.: On the role of aspect to quantify water transit times in small mountainous catchments, Water Resour. Res., 45, W08427,, 2009.
Short summary
This study provides an important first step towards a better understanding of the hydrology of tropical montane regions and the factors influencing baseflow mean transit times (MTT). Our MTT estimates ranged between 1.2 and 2.7 years, suggesting deep and long subsurface pathways contributing to sustain dry season flows. Our findings showed that topography and subsurface permeability are the key factors controlling baseflow MTTs. Longest MTTs were found in the cloud forest headwater catchments.