Summary
| Also known as
|
|
| Model type
|
Single
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| Model part of larger framework
|
|
| Note on status model
|
|
| Date note status model
|
|
permafrost,
thermal,
subsurface,
thaw lake,
talik,
Technical specs
| Supported platforms
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Mac OS
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| Other platform
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| Programming language
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Matlab
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| Other program language
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| Code optimized
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Single Processor
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| Multiple processors implemented
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| Nr of distributed processors
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| Nr of shared processors
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| Start year development
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2009
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| Does model development still take place?
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Yes
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| If above answer is no, provide end year model development
|
|
| Code development status
|
|
| When did you indicate the 'code development status'?
|
|
| Model availability
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|
Source code availability
(Or provide future intension)
|
Through CSDMS repository
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| Source web address
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| Source csdms web address
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| Program license type
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GPL v2
|
| Program license type other
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| Memory requirements
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| Typical run time
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2 hrs for 1000 year simulation
|
In/Output
| Describe input parameters
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Requires an input file called: radin_dailyavg.mat
This specifies the daily average incoming radiation.
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| Input format
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| Other input format
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| Describe output parameters
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temperature time series at variable depths into the subsurface in deg C
lake depth in m
ice thickness in m
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| Output format
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| Other output format
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matlab plots and variables
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| Pre-processing software needed?
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No
|
| Describe pre-processing software
|
|
| Post-processing software needed?
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Yes
|
| Describe post-processing software
|
Matlab
|
| Visualization software needed?
|
Yes
|
| If above answer is yes
|
Matlab
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| Other visualization software
|
|
Process
| Describe processes represented by the model
|
ThawLake1D Model couples a permafrost thermal model, a lake ice model and a subsidence model. It models heat conductio through a lake-permafrost system, evaluating temperature with depth.
|
| Describe key physical parameters and equations
|
- permafrost thermal model: calculates thermal condutivity and specific heat capacity
- lake ice model: conduction of heat within water depending on incoming solar radiation
- subsiidence model: melted permafrost cells with excess ice are subsided by the excess ice content. A talik can form under a lake
|
| Describe length scale and resolution constraints
|
1D
Uppermost 10 m has high resolution gridcells (0.05m).
Below 10 m to 500 m depth, grid cells are coarser (1m).
|
| Describe time scale and resolution constraints
|
Simulations are run at daily time step
Total simulation duration is typically over 100's of years.
|
| Describe any numerical limitations and issues
|
|
Testing
| Describe available calibration data sets
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Model is designed and calibrated for Alaska Coastal Plain.
We calibrated the model against temperature data in the subsurface from the Drew point, AK, USGS meteorological station.
|
| Upload calibration data sets if available:
|
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| Describe available test data sets
|
|
| Upload test data sets if available:
|
|
| Describe ideal data for testing
|
|
Other
| Do you have current or future plans for collaborating with other researchers?
|
Yes, the project is ongoing at CU Boulder and with USGS partners
|
| Is there a manual available?
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No
|
| Upload manual if available:
|
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| Model website if any
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| Model forum / discussion board
|
|
Download statistics
<pbars ytitle=Downloads Title='Monthly Downloads thawlake1d' xlabels=true size=900x200 ymax=10 grid=true box=true cubic=true plots=open xformat=number connected=true angle=90 legend>
,Total downloads: 27
2008 - Jan,0
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2015 - Jan,0
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</pbars>
Introduction
History
Papers
Issues
Help
Input Files
Output Files
Download source code |
