Also known as
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 Watershed-Scale, Reach-Scale
Model domain Terrestrial
One-line model description Evolution of a river profile with dynamic width
Extended model description Optimization Technique in Transient Evolution of Rivers (OTTER). This models a 1D river profile while incorporating a algorithm for dynamic channel width. The channel width algorithm dynamically adjusts channel geometry in response to values of water discharge, rock-uplift/erosion, and sediment supply. It operates by calculating the current shear stress (no wide channel assumption), the shear stress if channel width is slightly larger, and shear stress for a slightly narrower channel. Using these values, erosion potential is calculated for all three scenarios (no change in width, slightly wider, slightly narrower) and the one that generates the maximum erosion rate dictates the direction of channel change. See Yanites, 2018 JGR for further information.
Name Brian Yanites
Type of contact
Institute / Organization Indiana University
Postal address 1
Postal address 2
Town / City Bloomington
Postal code 47405
State Indiana
Country United States
Email address

Supported platforms
Other platform
Programming language


Other program language
Code optimized
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development 2017
Does model development still take place? No
If above answer is no, provide end year model development 2018
Code development status
When did you indicate the 'code development status'?
Model availability
Source code availability
(Or provide future intension)
Through CSDMS repository
Source web address
Source csdms web address
Program license type Other
Program license type other MIT
Memory requirements
Typical run time

Describe input parameters Typical inputs of a 1D river profile model (resolution, river length, model time, rock-uplift, erodibility, grain size characteristics)
Input format
Other input format
Describe output parameters
Output format
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

Describe processes represented by the model River erosion and channel width adjustment. Additional: sediment transport.
Describe key physical parameters and equations See Yanites 2018, JGR
Describe length scale and resolution constraints Sediment transport models can become unstable and limit computational efficiency.
Describe time scale and resolution constraints
Describe any numerical limitations and issues

Describe available calibration data sets
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?
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 not possible
BMI compliant No not possible
WMT component No not possible
PyMT component
Is this a data component
DOI model 10.5281/zenodo.1243079
For model version Version 1.0
Year version submitted 2018
Link to file
Can be coupled with:
Model info

Nr. of publications: 2
Total citations: 46
h-index: 1
m-quotient: 0.17
Qrcode OTTER.png
Link to this page




Nr. of publications: 2
Total citations: 46
h-index: 1
m-quotient: 0.17

Featured publication(s)YearModel describedType of ReferenceCitations
Yanites, Brian 2018. OTTER, version 1.0. , , 10.5281/zenodo.1243079
(View/edit entry)
2018 OTTER

Source code ref.

Yanites, Brian J.; 2018. The Dynamics of Channel Slope, Width, and Sediment in Actively Eroding Bedrock River Systems. Journal of Geophysical Research: Earth Surface, 123, 1504–1527. 10.1029/2017JF004405
(View/edit entry)
2018 OTTER
Model overview 46
See more publications of OTTER



Input Files

Output Files