Model:ThawLake1D

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ThawLake1D


Metadata

Also known as
Model type Single
Model part of larger framework
Incorporated models or components:
Spatial dimensions 1D
Spatial extent Point-Based, Watershed-Scale
Model domain Terrestrial, Hydrology, Cryosphere
One-line model description 1-D numerical model of permafrost and subsidence processes.
Extended model description This model a 1-D numerical model of permafrost and subsidence processes.

It aims to investigate the subsurface thermal impact of thaw lakes of various depths, and to evaluate how this impact might change in a warming climate.

Keywords:

permafrost, thermal, subsurface, thaw lake, talik,


First name Nora
Last name Matell
Type of contact Model developer
Institute / Organization INSTAAR
Postal address 1 1560 30th street
Postal address 2
Town / City Boulder
Postal code 80303
State Colorado
Country United States
Email address nlmatell@gmail.com
Phone
Fax


First name Irina
Last name Overeem
Type of contact Model developer
Institute / Organization INSTAAR
Postal address 1 1560 30th street
Postal address 2
Town / City Boulder
Postal code
State Colorado
Country United States
Email address Irina.overeem@colorado.edu
Phone 303-4926631
Fax


Supported platforms Mac OS
Other platform
Programming language Matlab
Other program language
Code optimized Single Processor
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development 2009
Does model development still take place? Yes
If above answer is no, provide end year model development
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/thawlake1d
Program license type GPL v2
Program license type other
Memory requirements
Typical run time 2 hrs for 1000 year simulation


Describe input parameters Requires an input file called: radin_dailyavg.mat

This specifies the daily average incoming radiation.

Input format
Other input format
Describe output parameters temperature time series at variable depths into the subsurface in deg C

lake depth in m ice thickness in m

Output format
Other output format matlab plots and variables
Pre-processing software needed? No
Describe pre-processing software
Post-processing software needed? Yes
Describe post-processing software Matlab
Visualization software needed? Yes
If above answer is yes Matlab
Other visualization software


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


Describe available calibration data sets 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:
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? Yes, the project is ongoing at CU Boulder and with USGS partners
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

OpenMI compliant No but possible
BMI compliant No but possible
WMT component No not possible
PyMT component
Is this a data component
Can be coupled with:
Model info
Nora Matell
Overeem
Citation indices ThawLake1D
Nr. of pubs: 1
Citations: 12
h-index: 1
Qrcode ThawLake1D.png
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Introduction

History

References




Citation indices ThawLake1D
Nr. of pubs: 1
Citations: 12
h-index: 1



Featured publication(s)YearModel describedType of ReferenceCitations
Matell, N.; Anderson, R.S.; Overeem, I.; Wobus, C.; Urban, F.E.; Clow, G.D.; 2013. Modeling the subsurface thermal impact of Arctic thaw lakes in a warming climate. Computers & Geosciences, 53, 69–79. 10.1016/j.cageo.2011.08.028
(View/edit entry)
2013ThawLake1D
Model overview 12
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Input Files

Output Files