Hydrological Modelling Of The
\“Sierra De Las Minas” In Guatemala,
By Using A Conceptual Distributed Model
And Considering The Lack Of Data
Author(s)
M. Morales-de la Cruz & F. Francés
Abstract
The Biosphere Reserve \“Sierra de las Minas” is part of the Guatemalan System
of Protected Areas and contains the largest cloud forests of Guatemala. Its
southern slopes flow into the Motagua Valley, one of the more active zones in
the country and paradoxically, the most arid and driest zone of Central America.
We have studied the hydrology of the Teculután Basin on a daily time step, by
estimating its hydrological characteristics and using the conceptual distributed
model Tetis v. 7.2 developed at the Polytechnic University of Valencia, Spain.
We applied a new split-parameter structure coupled with the SCE-UA automatic
optimization algorithm to obtain the set of optimal correction factors of the
model. Among the results we have completed a precipitation spatial and
sensitive analysis. The model has shown a high sensitivity to changes in the
parameter, which characterizes the precipitation increment due to the difference
in altitude. In an attempt to capture seasonal variability produced by the presence
of the cloud forest in the upper portion of the basin, we studied the horizontal
precipitation and the sensitivity to changing the correction factor for evaporation
and the vegetation cover index.
Keywords: distributed hydrological model, automatic calibration, conceptual
model, Sierra de las Minas, cloud forest.
1 Introduction
In Central America, the study of the hydrological cycle in mountain basins has
had different approaches, mostly monthly or annual water balances or only
Keywords
distributed hydrological model, automatic calibration, conceptual
model, Sierra de las Minas, cloud forest.
Related Book
Other papers in this volume
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