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Three-phase Numerical Model for Subsurface Hydrology in Permafrost-affected Regions (Pflotran-ice V1.0) : Volume 8, Issue 5 (23/10/2014)

By Karra, S.

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Book Id: WPLBN0003977678
Format Type: PDF Article :
File Size: Pages 16
Reproduction Date: 2015

Title: Three-phase Numerical Model for Subsurface Hydrology in Permafrost-affected Regions (Pflotran-ice V1.0) : Volume 8, Issue 5 (23/10/2014)  
Author: Karra, S.
Volume: Vol. 8, Issue 5
Language: English
Subject: Science, Cryosphere
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2014
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Painter, S. L., Lichtner, P. C., & Karra, S. (2014). Three-phase Numerical Model for Subsurface Hydrology in Permafrost-affected Regions (Pflotran-ice V1.0) : Volume 8, Issue 5 (23/10/2014). Retrieved from http://www.ebooklibrary.org/


Description
Description: Computational Earth Science Group, Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA. Degradation of near-surface permafrost due to changes in the climate is expected to impact the hydrological, ecological and biogeochemical responses of the Arctic tundra. From a hydrological perspective, it is important to understand the movement of the various phases of water (gas, liquid and ice) during the freezing and thawing of near-surface soils. We present a new non-isothermal, single-component (water), three-phase formulation that treats air as an inactive component. This single component model works well and produces similar results to a more complete and computationally demanding two-component (air, water) formulation, and is able to reproduce results of previously published laboratory experiments. A proof-of-concept implementation in the massively parallel subsurface flow and reactive transport code PFLOTRAN is summarized, and parallel performance of that implementation is demonstrated. When water vapor diffusion is considered, a large effect on soil moisture dynamics is seen, which is due to dependence of thermal conductivity on ice content. A large three-dimensional simulation (with around 6 million degrees of freedom) of seasonal freezing and thawing is also presented.

Summary
Three-phase numerical model for subsurface hydrology in permafrost-affected regions (PFLOTRAN-ICE v1.0)

Excerpt
Akbari, G., Basirat Tabrizi, H., and Damangir, E.: Numerical and experimental investigation of variable phase transformation number effect in porous media during freezing process, Heat Mass Trans., 45, 407–416, 2009.; Bear, J.: Dynamics of Fluids in Porous Media, Dover Publications, Inc., New York, 2013.; Bense, V., Ferguson, G., and Kooi, H.: Evolution of shallow groundwater flow systems in areas of degrading permafrost, Geophys. Res. Lett., 36, L22401, doi:10.1029/2009GL039225, 2009.; Bosson, E., Selroos, J. O., Stigsson, M., Gustafsson, L. G., and Destouni, G.: Exchange and pathways of deep and shallow groundwater in different climate and permafrost conditions using the Forsmark site, Sweden, as an example catchment, Hydrogeol. J., 21, 225–237, 2013.; Dall'Amico, M., Endrizzi, S., Gruber, S., and Rigon, R.: A robust and energy-conserving model of freezing variably-saturated soil, The Cryosphere, 5, 469–484, doi:10.5194/tc-5-469-2011, 2011.; Edlefsen, N. and Anderson, A.: Thermodynamics of soil moisture, Hilgardia, 15, 31–298, 1943.; Frampton, A., Painter, S., Lyon, S., and Destouni, G.: Non-isothermal, three-phase simulations of near-surface flows in a model permafrost system under seasonal variability and climate change, J. Hydrol., 403, 352–359, doi:10.1016/j.jhydrol.2011.04.010, 2011.; Grenier, C., Régnier, D., Mouche, E., Benabderrahmane, H., Costard, F., and Davy, P.: Impact of permafrost development on groundwater flow patterns: a numerical study considering freezing cycles on a two-dimensional vertical cut through a generic river-plain system, Hydrogeol. J., 21, 257–270, 2013.; Lunardini, V.: Climatic warming and the degradation of warm permafrost, Permafrost Periglac., 7, 311–320, 1996.; Grimm, R. and Painter, S.: On the secular evolution of groundwater on Mars, Geophys. Res. Lett., 36, L24803, doi:10.1029/2009GL041018, 2009.; Guymon, G. and Luthin, J.: A coupled heat and moisture transport model for arctic soils, Water Resour. Res., 10, 995–1001, 1974.; Hammond, G. E., Lichtner, P. C., and Mills, R. T.: Evaluating the performance of parallel subsurface simulators: An illustrative example with PFLOTRAN, Water Resour. Res., 50, 208–228, 2014.; Hansen, J., Ruedy, R., Glascoe, J., and Sato, M.: GISS analysis of surface temperature change, J. Geophys. Res., 104, 30997–31022, 1999.; Hansson, K., Simunek, J., Mizoguchi, M., Lundin, L, C., and van Genuchten, M.: Water flow and heat transport in frozen soil: numerical solution and freeze-thaw applications, Vadose Zone J., 3, 693–704, 2004.; Harlan, R.: Analysis of coupled heat-fluid transport in partially frozen soil, Water Resour. Res., 9, 1314–1323, 1973.; Jame, Y. and Norum, D.: Heat and mass transfer in a freezing unsaturated porous medium, Water Resour. Res., 16, 811–819, 1980.; Kane, D., Hinzman, L., and Zarling, J.: Thermal response of the active layer to climatic warming in a permafrost environment, Cold Reg. Sci. Technol., 19, 111–122, 1991.; Lawrence, D. M., Oleson, K. W., Flanner, M. G., Thornton, P. E., Swenson, S. C., Lawrence, P. J., Zeng, X., Yang, Z.-L., Levis, S., Sakaguchi, K., Bonan, G. B., and Slater, A. G.: Parameterization improvements and functional and structural advances in Version 4 of the Community Land Model, J. Adv. Model Earth Sy., 3, M03001, doi:10.1029/2011MS00045, 2011.; Lu, T., Du, J., Lei, S., and Wang, B.: Heat and mass transfer in unsaturated porous media with solid–liquid change, Heat Mass Trans., 37, 237–242, 2001.; Lichtner, P. C., Hammond, G. E., Lu, C., Karra, S., Bisht, G., Andre, B., Mills, R. T., and Kumar, J.: PFLOTRAN User Manual, Tech. rep., http://w

 

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