Model:BlockLab

BlockLab

Also known as	Blocky Landscape Evolution Model
Model type	Single
Model part of larger framework
Note on status model
Date note status model

Incorporated models or components:

Spatial dimensions	2D
Spatial extent	Landscape-Scale, Reach-Scale, Watershed-Scale
Model domain	Terrestrial
One-line model description	BlockLab computes landscape evolution in the presence of large blocks of rock on hillslopes and in channels.
Extended model description	Blocklab treats landscape evolution in landscapes where surface rock may be released as large blocks of rock. The motion, degradation, and effects of large blocks do not play nicely with standard continuum sediment transport theory. BlockLab is intended to incorporate the effects of these large grains in a realistic way.

Keywords:

Name	Charles Shobe
Type of contact	Model developer
Institute / Organization	Department of Geological Sciences, University of Colorado
Postal address 1	UCB 399
Postal address 2
Town / City	Boulder
Postal code	80309
State	Colorado
Country	United States
Email address	charles.shobe@colorado.edu
Phone
Fax

Name	Rachel Glade
Type of contact	Model developer
Institute / Organization	Department of Geological Sciences, University of Colorado
Postal address 1	UCB 399
Postal address 2
Town / City	Boulder
Postal code	80309
State	Colorado
Country	United States
Email address	rachel.glade@colorado.edu
Phone
Fax

Supported platforms	Unix, Linux, Mac OS, Windows
Other platform
Programming language	Python
Other program language
Code optimized	Single Processor
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	As is, no updates are provided
When did you indicate the 'code development status'?	2020
Model availability	As code
Source code availability (Or provide future intension)	Through web repository
Source web address	https://github.com/cmshobe/BlockLab
Source csdms web address
Program license type	Other
Program license type other	MIT
Memory requirements	more is better; will work on a laptop w/ 4 GB RAM
Typical run time	hours to days

Describe input parameters
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	Cliff failure and retreat; hillslope evolution; river erosion; block release, transport, and weathering.
Describe key physical parameters and equations	River and hillslope erosion coefficients, hillslope weathering parameters; initial block size, block release/motion thresholds, block weathering rate.
Describe length scale and resolution constraints	Standard LEM constraints on length scale: reach scale and above until you run out of computing power. Resolution is constrained by block size, should generally be order 1-10 m.
Describe time scale and resolution constraints	Timesteps in the range of 1-10 years are generally stable, can run for as long as desired until the memory runs out.
Describe any numerical limitations and issues	Becomes unstable at timesteps much greater than 10 years.

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

Comments

This part will be filled out by CSDMS staff

Can be coupled with:

Model info

Authors

Glade

Source code

Model citations

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Blocky landscape evolution model.

Developed by Rachel Glade and Charles Shobe at the University of Colorado Department of Geological Sciences.

License: MIT.

Featured reference(s)	Open Access Status	Year	Type of Reference	Cited
Glade, Rachel C.; Shobe, Charles M.; Anderson, Robert S.; Tucker, Gregory E.; 2019. Canyon shape and erosion dynamics governed by channel-hillslope feedbacks. Geology, 47650–654. 10.1130/G46219.1	cc-by · publishedVersion	2019	a module overview describing a module	30