TY - JOUR
T1 - Exploiting the topographic information in a PDM-based conceptual hydrological model
AU - Noto, Leonardo
PY - 2014
Y1 - 2014
N2 - In this work, a conceptual lumped model was developed to simulate runoff and analyze hydrological processes with the goal of incorporating the morphological information into a probability-distributed model (PDM). PDMs usually describe the process of runoff generation as the result of soil saturation excess caused by precipitation with soil storage capacity represented by a spatially distributed quantity and described by a probability distribution. The proposed model, called topography-based probability distributed model (TOPDM), based on a simple water balance whose components are basin soil moisture storage, precipitation, drainage to groundwater, evapotranspiration, and Dunnian and Hortonian surface runoff, is the result of the combination and integration of the topographic index within a PDM. A TOPDM was applied to the Baron Fork basin in Oklahoma in this research, and simulation results show that it provides a reasonably good estimation of runoff and a realistic representation of physical process in the catchment confirmed by the comparison with soil moisture data and with the results provided by a more complex, physically based distributed hydrological model.
AB - In this work, a conceptual lumped model was developed to simulate runoff and analyze hydrological processes with the goal of incorporating the morphological information into a probability-distributed model (PDM). PDMs usually describe the process of runoff generation as the result of soil saturation excess caused by precipitation with soil storage capacity represented by a spatially distributed quantity and described by a probability distribution. The proposed model, called topography-based probability distributed model (TOPDM), based on a simple water balance whose components are basin soil moisture storage, precipitation, drainage to groundwater, evapotranspiration, and Dunnian and Hortonian surface runoff, is the result of the combination and integration of the topographic index within a PDM. A TOPDM was applied to the Baron Fork basin in Oklahoma in this research, and simulation results show that it provides a reasonably good estimation of runoff and a realistic representation of physical process in the catchment confirmed by the comparison with soil moisture data and with the results provided by a more complex, physically based distributed hydrological model.
KW - 2300
KW - Civil and Structural Engineering
KW - Environmental Chemistry
KW - Lumped model
KW - Probability-distributed model (PDM)
KW - Soil moisture
KW - Water Science and Technology
KW - Wetness index
KW - 2300
KW - Civil and Structural Engineering
KW - Environmental Chemistry
KW - Lumped model
KW - Probability-distributed model (PDM)
KW - Soil moisture
KW - Water Science and Technology
KW - Wetness index
UR - http://hdl.handle.net/10447/207229
UR - http://ojps.aip.org/heo/
M3 - Article
VL - 19
SP - 1173
EP - 1185
JO - Journal of Hydrologic Engineering - ASCE
JF - Journal of Hydrologic Engineering - ASCE
SN - 1084-0699
ER -