Estimation Of Sediment Yields In A Watershed Area Using ANN Method
Author(s)
C.-Y. Hsu, H.-Y. Lee & Y.-L. Lin
Abstract
Estimation of sediment yields in a watershed
area using ANN method
C.-Y. ~ s u ' , H.-Y. ~ e e ' & Y.-L. in'
I Department of Civil Engineering and Hydrotech Research Laboratory,
National Taiwan University, Taipei, Taiwan.
Abstract
Soil erosion and transport in the watershed area, which are the main source of
reservoir sedimentation and affect the reservoir by reducing the lifespan and
capacity, are the most important items of watershed management. Due to
difficulty of data collection, empirical formulas are commonly used to estimate
the sediment yields. However, these estimations are far from accurate. Two
different methods were used in this study to estimate the sediment yields in the
watershed area. A numerical model, Hydrological Simulation Program Fortran
(HSPF) developed by US EPA was first adopted. A large data set is needed to
calibrate and verify the model. However, these data are always not available and
very difficult to collect, and hence, is too complicated for non-professionals to
Keywords
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