Model help:HydroTrend
HydroTrend
Climate driven hydrological transport model
Model introduction
HydroTrend is an ANSI-standard C numerical model that creates synthetic river discharge and sediment load time series as a function of climate trends and basin morphology and has been used to study the sediment flux to a basin for basin filling models. As a drainage basin simulator, the model provides time series of daily discharge hydraulics at a river mouth, including the sediment load properties. HydroTrend was designed to provide input to lake or shelf circulation and sedimentation models (Steckler et al., 1996; Syvitski and Alcott, 1995b), and study the impact of land-sea fluxes given climatic change scenarios (Moore, 1992; Syvitski and Andrews, 1994). HydroTrend simulates the major processes that occur in a river basin, including:
- Glacierized areas with advances and retreats depending on the climate scenario,
- Snow accumulation in the winter and melt in the subsequent spring/summer,
- Rainfall over the remaining portions of the basin with canopy evaporation,
- Groundwater recharging and discharging,
- The impact of reservoirs.
Model input parameters
Input Files and directories | ||
---|---|---|
Input directory | [-] | |
Site prefix | [-] | |
Case prefix | [-] |
Run Parameters | ||
---|---|---|
Run duration | [years] |
Temperature | ||
---|---|---|
Starting mean annual temperature | [°C] | |
Change in mean annual temperature | [°C/year] | |
Standard deviation of mean annual temperature | [°C] |
Precipitation | ||
---|---|---|
Starting mean annual precipitation | [m/year] | |
change in mean annual precipitation | [m/year/year] | |
Standard deviation of mean annual precipitation | [m/year] |
Basin | ||
---|---|---|
Lithology factor | [-] | |
Anthropogenic facor | [-] | |
Lapse rate | [°C/km] | |
Starting ELA | [m] | |
Change in ELA | m/year] | |
Dry precipitation (nival and ice) evaporation fraction | [-] | |
River length | [km] | |
Mean volume of reservoir | [km3] | |
Drainage area of reservoir | [km2] |
River Mouth | ||
---|---|---|
k | River mouth velocity coefficient | [m/s] |
m | River mouth velocity exponent | [-] |
a | River mouth width coefficient | [m] |
b | River mouth width exponent | [-] |
Average river mouth velocity | [m/s] | |
Constant annual base flow | [m3/s] | |
Trapping efficiency | [-] | |
Delta gradient | [m/m] |
Groudwater | ||
---|---|---|
Maximum groundwater storage | [m3] | |
Minimum groundwater storage | [m3] | |
Initial groundwater storage | m[3] | |
Groundwater coefficient | [m3] | |
Groundwater exponent | [-] | |
Saturated hydraulic conductivity | [mm/day] |
Model output parameters
Output Values | ||
---|---|---|
Output directory | [-] | |
Interval between output files | [-] | |
Mean Velocity file | [-] | |
Mean Width file | [-] | |
Mean Depth file | [-] | |
Mean Water Discharge file | [-] | |
Mean Sediment Discharge file | [-] | |
Mean Bedload Flux file | [-] |
Uses ports
This will be something that the CSDMS facility will add
Provides ports
This will be something that the CSDMS facility will add
Main equations
Qs | = BQART | = Long term (30yrs or longer) suspended sediment load [kg/s] | (1) |
Nomenclature
Qs | = Long-term suspended sediment load (30yrs or longer) | [kg/s] |
B | = | [-] |
Q | = Long-term water discharge | [m3/s] |
A | = Drainage basin area | [km2] |
R | = Drainage basin relief | [km] |
T | = Drainage basin temporal and spatial mean temperature | [°C] |
Output Values |
---|
Output directory |
Notes
Any notes, comments, you want to share with the user
Numerical scheme
Examples
An example run with input parameters, BLD files, as well as a figure / movie of the output
Follow the next steps to include images / movies of simulations:
- Upload file: http://csdms.colorado.edu/wiki/Special:Upload
- Create link to the file on your page: [[Image:<file name>]].
See also: Help:Images or Help:Movies
Developer(s)
References
- Kettner, A.J., and Syvitski, J.P.M., 2008. HydroTrend version 3.0: a Climate-Driven Hydrological Transport Model that Simulates Discharge and Sediment Load leaving a River System. Computers & Geosciences, 34(10), 1170-1183, doi:10.1016/j.cageo.2008.02.008.
- Syvitski, J.P.M., Morehead, M.D. and Nicholson, M., 1998. HYDROTREND: A Climate-driven Hydrologic-Transport Model for Predicting Discharge and Sediment Loads to Lakes or Oceans. Computers & Geosciences, 24(1), 51-68, doi:10.1016/S0098-3004(97)00083-6.
- Syvitski, J.P.M., and J.M. Alcott, 1995. RIVER3: Simulation of River Discharge and Sediment Transport. Computers and Geosciences, 21(1), 89-101, doi:10.1016/0098-3004(94)00062-Y.