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[edit] HEBEM

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Modeler information
First name Jeffrey
Last name Niemann
Type of contact Model developer
Institute / Organization Colorado State University
Postal address 1 Dept of Civil and Environmental Engineering
Postal address 2 Campus Delivery 1372
Town / City Fort Collins
Postal code 80523
State Colorado
Country USA
Email address jniemann@engr.colostate.edu
Phone 970 491 3517
Fax 970 491 7727


Additional modeler information
First name Xiangjiang
Last name Huang
Type of contact
Institute / Organization
Postal address 1
Postal address 2
Town / City
Postal code
State
Country
Email address
Phone
Fax


Model identity
Model type Single
Spatial dimensions 2D
Spatial extent
Model domain
One-line model description Hydrologically Enhanced Basin Evolution Model
Extended model description The Hydrologically Enhanced Basin Evolution Model (HEBEM) is a combined hydrologic/geomorphic model. The hydrologic model simulates precipitation with variability, infiltration, evapotranspiration, overland flow, and groundwater flow, thus producing a spatially and temporally varying water discharge Q that drives fluvial processes in the land surface. The geomorphic model accounts for tectonic forcing, hillslope processes, erosion, and sediment transport. The combined model uses multiple time steps for hydrologic and geomorphic processes. Due to its hydrologic representation, the model is able to investigate the interaction between hydrology and geomorpholgy.


Model technical information
Supported platforms Unix
Other platform
Programming language Fortran77, Fortran90, C
Other program language
Code optimized
Start year development 2001
Does model development still take place? Yes
If above answer is no, provide end year model development
Model availability
Source code availability
(Or provide future intension)
Source web address
Program license type Other
Program license type other --
OpenMI compliant No but possible
CCA component No but possible
IRF interface No but possible
Memory requirements --
Typical run time --


Input - Output description
Describe input parameters A grid with initial elevation. Hydrologic time step and geomorphic time step

Hydrologic paramters: average rainfall intensity, rainall duration, interstorm period, infiltration capacity, porosity, hydraulic conductivity, aquifer depth, specific yield, PET

Geomorphic parameters: baselevel lowering rate, diffusivity for hillslope processes, weathering rate, parameters for erosion and sediment transport model

Input format ASCII
Other input format
Describe output parameters elevations of all nodes elevation changes of all nodes
Output format ASCII
Other output format
Pre-processing software needed? No
Describe pre-processing software
Post-processing software needed? No
Describe post-processing software
Visualization software needed? No
If above answer is yes
Other visualization software


Process description model
Describe processes represented by the model Hydrologic processes:

Precipitation, infiltration, evapotranspiration, overland flow, saturation-excess runoff, groundwater flow

Geomorphic processes: Baselevel lowering, weathering, hillslope processes, erosion, sediment transport

Describe key physical parameters and equations Infiltration capacity, water balance equation

Hydraulic conductivity, 2-D Dupuit groundwater movement equation

Describe length scale and resolution constraints A grid with 100x100 cells, Typical cells with a resolution of 40x40m
Describe time scale and resolution constraints Time scale of 10,000 years. Typical time step is 3 hour
Describe any numerical limitations and issues N/A


Model testing
Describe available calibration data sets The hydrologic model was calibrated using hydrologic measurements of WE-38 watershed in PA
Upload calibration data sets if available:
Describe available test data sets N/A
Upload test data sets if available:
Describe ideal data for testing N/A


Users groups model
Do you have current or future plans for collaborating with other researchers? None


Documentation model
Provide key papers on model if any Huang, X., and J. D. Niemann, How do streamflow generation mechanisms affect watershed hypsometry? Earth Surface Processes and Landforms, 2007, doi:10.1002/esp.1573 (currently published online).

Huang, X., and J. D. Niemann, An evaluation of the geomorphically effective event for fluvial processes over long periods, Journal of Geophysical Research, 111, F03015, 2006, doi:10.1029/2006JF000477. Huang, X., and J. D. Niemann, Modeling the potential impacts of groundwater hydrology on long-term drainage basin evolution, Earth Surface Processes and Landforms, 31(14), 1802-1823, 2006, doi:10.1002/esp.1369.

Is there a manual available? No
Upload manual if available:
Model website if any
Model forum / discussion board


Additional comments
Comments None


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