Model:GIPL: Difference between revisions
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{{Model identity | {{Model identity | ||
|Model type=Single | |Model type=Single | ||
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{{Model identity2 | |||
|ModelDomain=Terrestrial, Cryosphere | |||
|Spatial dimensions=1D | |Spatial dimensions=1D | ||
|Spatialscale=Global, | |Spatialscale=Continental, Global, Landscape-Scale, Regional-Scale | ||
|One-line model description=GIPL(Geophysical Institute Permafrost Laboratory) is an implicit finite difference one-dimensional heat flow numerical model. | |One-line model description=GIPL(Geophysical Institute Permafrost Laboratory) is an implicit finite difference one-dimensional heat flow numerical model. | ||
|Extended model description=GIPL(Geophysical Institute Permafrost Laboratory) is an implicit finite difference one-dimensional heat flow numerical model. The model | |Extended model description=GIPL(Geophysical Institute Permafrost Laboratory) is an implicit finite difference one-dimensional heat flow numerical model. The GIPL model uses the effect of snow layer and subsurface soil thermal properties to simulate ground temperatures and active layer thickness (ALT) by solving the 1D heat diffusion equation with phase change. The phase change associated with freezing and thawing process occurs within a range of temperatures below 0 degree centigrade, and is represented by the unfrozen water curve (Romanovsky and Osterkamp 2000). The model employs finite difference numerical scheme over a specified domain. The soil column is divided into several layers, each with distinct thermo-physical properties. The GIPL model has been successfully used to map permafrost dynamics in Alaska and validated using ground temperature measurements in shallow boreholes across Alaska (Nicolsky et al. 2009, Jafarov et al. 2012, Jafarov et al. 2013, Jafarov et al. 2014). | ||
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{{Model keywords | |||
|Model keywords=heat flow | |||
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{{Model keywords | |||
|Model keywords=permafrost | |||
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{{Modeler information | |||
|First name=Elchin | |||
|Last name=Jafarov | |||
|Type of contact=Model developer | |||
|Institute / Organization=University of Colorado | |||
|Town / City=Boulder | |||
|Postal code=80309 | |||
|Country=United States | |||
|State=Colorado | |||
|Email address=Elchin.Jafarov@colorado.edu | |||
}} | }} | ||
{{Model technical information | {{Model technical information | ||
|Supported platforms=Unix, Linux, Windows | |Supported platforms=Unix, Linux, Windows | ||
|Programming language=Fortran90, Matlab | |Programming language=Fortran90, Matlab | ||
|Code optimized=Single Processor, | |Code optimized=Single Processor, Multiple Processors | ||
|Start year development=2000 | |Start year development=2000 | ||
|Does model development still take place?=Yes | |Does model development still take place?=Yes | ||
|Model availability=As | |DevelopmentCode=As is, no updates are provided | ||
|Source code availability=Through | |DevelopmentCodeYearChecked=2020 | ||
|Model availability=As code | |||
|Source code availability=Through web repository | |||
|Source web address=https://github.com/Elchin/GIPL | |||
|Program license type=Other | |Program license type=Other | ||
|Typical run time=it takes less than a minite to run the serial model for one with daily time interval | |Typical run time=it takes less than a minite to run the serial model for one with daily time interval | ||
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{{Documentation model | {{Documentation model | ||
|Manual model available=No | |Manual model available=No | ||
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{{Additional comments model}} | {{Additional comments model}} | ||
{{CSDMS staff part | |||
|OpenMI compliant=No but possible | |||
|IRF interface=No but possible | |||
|CMT component=In progress | |||
|PyMT component=Yes | |||
|CCA component=No but possible | |||
}} | |||
{{DOI information | |||
|DOI model=10.1594/IEDA/100131 | |||
|DOI assigned to model version=0.1 | |||
|DOI-year assigned to model version=2011 | |||
|DOI-filelink=https://csdms.colorado.edu/pub/models/doi-source-code/gipl-10.1594.IEDA.100131-0.1.tar.gz | |||
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== Introduction == | == Introduction == | ||
GIPL(Geophysical Institute Permafrost Laboratory) is an implicit finite difference one-dimensional heat flow numerical model | GIPL(Geophysical Institute Permafrost Laboratory) is an implicit finite difference one-dimensional heat flow numerical model.The model uses fine vertical resolution grid which preserves the latent-heat effects in the phase transition zone, even under conditions of rapid or abrupt changes in the temperature fields. It includes upper boundary condition (usually air temperature), constant geothermal heat flux at the lower boundary (typically from 500 to 1000 m) and initial temperature distribution with depth. The other inputs are precipitation, prescribed water content and thermal properties of the multilayered soil column. As an output the model produces temperature distributions at different depths, active layer thickness and calculates time of freeze up. The results include temperatures at different depths and active layer thickness, freeze-up days. | ||
== IRF == | |||
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== Visualization == | == Visualization == | ||
[[File:m22000.jpg]] | [[File:m22000.jpg]] | ||
== References == | == References == | ||
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== Links == | |||
Latest revision as of 20:17, 16 September 2020
GIPL
Metadata
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Introduction
GIPL(Geophysical Institute Permafrost Laboratory) is an implicit finite difference one-dimensional heat flow numerical model.The model uses fine vertical resolution grid which preserves the latent-heat effects in the phase transition zone, even under conditions of rapid or abrupt changes in the temperature fields. It includes upper boundary condition (usually air temperature), constant geothermal heat flux at the lower boundary (typically from 500 to 1000 m) and initial temperature distribution with depth. The other inputs are precipitation, prescribed water content and thermal properties of the multilayered soil column. As an output the model produces temperature distributions at different depths, active layer thickness and calculates time of freeze up. The results include temperatures at different depths and active layer thickness, freeze-up days.
IRF
Issues
Does not include convective heat transfer.
Visualization
References
Nr. of publications: | 30 |
Total citations: | 1155 |
h-index: | 16 |
m-quotient: | 0.76 |
Featured publication(s) | Year | Model described | Type of Reference | Citations |
---|---|---|---|---|
Jafarov, E E; Romanovsky, V E; Genet, H; McGuire, A D; Marchenko, S S; 2013. The effects of fire on the thermal stability of permafrost in lowland and upland black spruce forests of interior Alaska in a changing climate. Environmental Research Letters, 8, 035030. 10.1088/1748-9326/8/3/035030 (View/edit entry) | 2013 | GIPL |
Model application | 122 |
Sazonova, T. S.; Romanovsky, V. E.; 2003. A model for regional-scale estimation of temporal and spatial variability of active layer thickness and mean annual ground temperatures. Permafrost and Periglacial Processes, 14, 125–139. 10.1002/ppp.449 (View/edit entry) | 2003 | GIPL Kudryavtsev Model |
Related theory | 114 |
See more publications of GIPL |