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Also known as Blocky Landscape Evolution Model
Model type Single
Model part of larger framework
Incorporated models or components:
Spatial dimensions 2D
Spatial extent Landscape-Scale, Watershed-Scale, Reach-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.
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

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 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 As code
Source code availability
(Or provide future intension)
Through web repository
Source web address
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

This part will be filled out by CSDMS staff

OpenMI compliant Not yet"Not yet" is not in the list (Yes, No but planned, No but possible, No not possible) of allowed values for the "Code openmi compliant or not" property.
BMI compliant Not yet"Not yet" is not in the list (Yes, No but planned, No but possible, No not possible) of allowed values for the "Code IRF or not" property.
WMT component Not yet"Not yet" is not in the list (Yes, In progress, No but possible, No not possible) of allowed values for the "Code CMT compliant or not" property.
PyMT component
Is this a data component
Can be coupled with:
Model info
Nr. of publications: 1
Total citations: 22
h-index: 1
m-quotient: 0.2
Qrcode BlockLab.png
Link to this page




Nr. of publications: 1
Total citations: 22
h-index: 1
m-quotient: 0.2

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Model overview

Template:SEM 2943501438



Input Files

Output Files