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

Symbol	Description	Unit
Input Files and directories
Input directory		[-]
Site prefix		[-]
Case prefix		[-]
Run Parameters
Temperature
Precipitation
Basin
River Mouth
Groudwater
Maximum groundwater storage		[m3]
Minimum groundwater storage		[m3]
Initial groundwater storage		m[3]
Groundwater coefficient		[m3]
Groundwater exponent		[-]
Saturated hydraulic conductivity		(mm/day)
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		[-]

Model output parameters

output variable1	variable description1	variable units1
variable2	description2	units2

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

A list of the key equations. HTML format is supported; latex format will be supported in the future

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)

Albert Kettner

References

Key papers

Links

Any link, eg. to the model questionnaire, etc.