Model:DECAL
From CSDMS
DECAL
Introduction
History
Papers
DECAL Questionnaire
Contact Information
Model: | DECAL |
Contact person: | Andreas Baas |
Institute: | King's College London |
City: | London |
Country: | United Kingdom |
Email: | andreas.baas@kcl.ac.uk |
2nd person involved: | -- |
3rd person involved: | -- |
Model description
Model type: | Single model for the terrestrial and coastal domain. |
Description: | A cellular automaton model for simulating the development of aeolian dune landscapes under the influence of vegetation and biota (parabolic dunes, blowouts, foredunes, nebkha dunes). |
Technical information
Supported platforms: | Windows |
Programming language: | C++, Matlab |
Model was developed started from: | 2005 |
To what degree will the model become available: | As teaching tool and as an executable. Basic algorithm is very simple and transferrable |
Current license type: | -- |
Memory requirements: | Variable |
Typical run time: | Variable |
Input / Output description
Input parameters: | Staring grid topography and vegetation maps, control parameters such as potential transport rates, vegetation response functions |
Input format: | ASCII |
Output parameters: | resultant landscape topography and vegetation distributions; annual avalanching statistics |
Output format: | ASCII |
Post-processing software (if needed): | yes, Any package for imaging DEMs and vegetation maps |
Visualization software (if needed): | yes: ESRI, IDL, Matlab |
Process description
Processes represented by model: | development of dune landscapes under the interaction between aeolian sand transport and vegetation growth and response |
Key physical parameters & equations: | potential sand transport rate, sediment avaliability, vegetation response characteristics |
Length scale & resolution constraints: | smallest cell should be equivalent to basic plant element (bush, grass clump) |
Time scale & resolution constraints: | lower limit akin to days, no upper limit |
Numerical limitations and issues : | heavy sequential number crunching (not written for parellel processing) |
Testing
Available calibration data sets: | none yet; in development |
Available test data sets: | none yet; in development |
Ideal data for testing: | field monitoring of geomorphic development and vegetation mapping, long-term required |
User groups
Currently or plans for collaborating with: | yes, future plans for collaborating on applying and comparing the model with real-world landscapes |
Documentation
Key papers of the model: | Baas (2002) Geomorphology,48. Nield & Baas (2008) Earth Surface Processes and Landforms,33. |
Is there a manual available: | -- |
Model website if any: | http://www.aeoliangeomorphology.org |
Additional comments
Comments: | -- |