Also known as Gravel River Long Profile
Model type Single
Model part of larger framework
Note on status model
Date note status model
Incorporated models or components:
Spatial dimensions 1D, 1.5D
Spatial extent Continental, Regional-Scale, Landscape-Scale, Watershed-Scale, Reach-Scale, Patch-Scale
Model domain Terrestrial
One-line model description Evolves gravel-bed river long profiles
Extended model description Computes transient (semi-implicit numerical) and steady-state (analytical and numerical) solutions for the long-profile evolution of transport-limited gravel-bed rivers. Such rivers are assumed to have an equilibrium width (following Parker, 1978), experience flow resistance that is proportional to grain size, evolve primarily in response to a single dominant "channel-forming" or "geomorphically-effective" discharge (see Blom et al., 2017, for a recent study and justification of this assumption and how it can be applied), and transport gravel following the Meyer-Peter and Müller (1948) equation. This combination of variables results in a stream-power-like relationship for bed-material sediment discharge, which is then inserted into a valley-resolving Exner equation to compute long-profile evolution.

alluvial-channel evolution, long profile, gravel-bed rivers,

Name Andrew Wickert
Type of contact Model developer
Institute / Organization University of Minnesota
Postal address 1 St. Anthony Falls Laboratory
Postal address 2 2 Third Avenue SE
Town / City Minneapolis
Postal code 55414
State Minnesota
Country United States
Email address

Supported platforms
Unix, Linux, Mac OS, Windows
Other platform
Programming language


Other program language
Code optimized Single Processor
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development 2018
Does model development still take place? Yes
If above answer is no, provide end year model development
Code development status
When did you indicate the 'code development status'?
Model availability As code
Source code availability
(Or provide future intension)
Through web repository
Source web address
Source csdms web address
Program license type GPL v3
Program license type other
Memory requirements 100-200 Mb
Typical run time seconds

Describe input parameters Water discharge inputs, sediment discharge inputs, base-level change, along-channel sources/sinks of sediment, grid of downstream distances
Input format ASCII, Binary
Other input format Prescribed within Python set-up script
Describe output parameters Long profile (x, z); output sediment discharge
Output format ASCII, Binary
Other output format As desired by user in Python set-up script
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

Describe processes represented by the model Transport-limited equilibrium-width long-profile evolution
Describe key physical parameters and equations See Wickert and Schildgen, 2018, Equations 20 and 36
Describe length scale and resolution constraints Valid so long as the whole modeled region is a gravel-bed river that is transport-limited
Describe time scale and resolution constraints Longer than the intermittency between channel-forming events
Describe any numerical limitations and issues Semi-implicit solution can decrease in accuracy for extremely long (hundreds of millions of years for typical input parameters) time steps

Describe available calibration data sets Laboratory experiments; long-term surveyed rivers; long profiles of transport-limited rivers
Upload calibration data sets if available:
Describe available test data sets
Upload test data sets if available:
Describe ideal data for testing

Do you have current or future plans for collaborating with other researchers? Yes
Is there a manual available? No
Upload manual if available:
Model website if any
Model forum / discussion board

This part will be filled out by CSDMS staff

OpenMI compliant No but possible
BMI compliant No but possible
WMT component No but possible
PyMT component
Is this a data component
DOI model 10.5281/zenodo.1705386
For model version 1.0.0
Year version submitted 2018
Link to file
Can be coupled with:
Model info
Andrew Wickert

Nr. of publications: 2
Total citations: 34
h-index: 1
m-quotient: 0.17
Qrcode GRLP.png
Link to this page




Nr. of publications: 2
Total citations: 34
h-index: 1
m-quotient: 0.17

Featured publication(s)YearModel describedType of ReferenceCitations
Wickert, A.D.; 2018. GRLP version 1.0.0.. , , . 10.5281/zenodo.1705386
(View/edit entry)
2018 GRLP

Model application

Wickert, Andrew D.; Schildgen, Taylor F.; 2019. Long-profile evolution of transport-limited gravel-bed rivers. Earth Surface Dynamics, 7, 17–43. 10.5194/esurf-7-17-2019
(View/edit entry)
2019 GRLP
Model overview 34
See more publications of GRLP



Input Files

Output Files