Model:OTTER

OTTER

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.

Keywords:

Supported platforms
Other platform
Programming language	Matlab
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	https://github.com/csdms-contrib/OTTER
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
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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

Comments

This part will be filled out by CSDMS staff

DOI model	10.5281/zenodo.1243079
For model version	Version 1.0
Year version submitted	2018
Link to file	https://zenodo.org/record/1243079/files/csdms-contrib/OTTER-v1.0.zip

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Model info

Authors

Source code

DOI

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Featured reference(s)	Open Access Status	Year	Type of Reference	Cited
Yanites, Brian 2018. OTTER, version 1.0. , . 10.5281/zenodo.1243079	unknown	2018	reference to source code	0
Yanites, Brian J.; 2018. The Dynamics of Channel Slope, Width, and Sediment in Actively Eroding Bedrock River Systems. Journal of Geophysical Research: Earth Surface, 1231504–1527. 10.1029/2017JF004405	· publishedVersion	2018	a module overview describing a module	63