Comparison of algorithms and parameterisations for infiltration into organic-covered permafrost soils
Infiltration into frozen and unfrozen soils is critical in hydrology, controlling active layer soil water dynamics and influencing runoff. Few Land Surface Models (LSMs) and Hydrological Models (HMs) have been developed, adapted or tested for frozen conditions and permafrost soils. Considering the v...
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Online Access: | https://doi.org/10.5194/hess-14-729-2010 https://doaj.org/article/ef5a6b0f85f24a4bab0f2268c7aeb1c1 |
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ftdoajarticles:oai:doaj.org/article:ef5a6b0f85f24a4bab0f2268c7aeb1c1 2023-05-15T16:37:18+02:00 Comparison of algorithms and parameterisations for infiltration into organic-covered permafrost soils Y. Zhang S. K. Carey W. L. Quinton J. R. Janowicz J. W. Pomeroy G. N. Flerchinger 2010-05-01T00:00:00Z https://doi.org/10.5194/hess-14-729-2010 https://doaj.org/article/ef5a6b0f85f24a4bab0f2268c7aeb1c1 EN eng Copernicus Publications http://www.hydrol-earth-syst-sci.net/14/729/2010/hess-14-729-2010.pdf https://doaj.org/toc/1027-5606 https://doaj.org/toc/1607-7938 doi:10.5194/hess-14-729-2010 1027-5606 1607-7938 https://doaj.org/article/ef5a6b0f85f24a4bab0f2268c7aeb1c1 Hydrology and Earth System Sciences, Vol 14, Iss 5, Pp 729-750 (2010) Technology T Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 article 2010 ftdoajarticles https://doi.org/10.5194/hess-14-729-2010 2022-12-31T04:53:14Z Infiltration into frozen and unfrozen soils is critical in hydrology, controlling active layer soil water dynamics and influencing runoff. Few Land Surface Models (LSMs) and Hydrological Models (HMs) have been developed, adapted or tested for frozen conditions and permafrost soils. Considering the vast geographical area influenced by freeze/thaw processes and permafrost, and the rapid environmental change observed worldwide in these regions, a need exists to improve models to better represent their hydrology. In this study, various infiltration algorithms and parameterisation methods, which are commonly employed in current LSMs and HMs were tested against detailed measurements at three sites in Canada's discontinuous permafrost region with organic soil depths ranging from 0.02 to 3 m. Field data from two consecutive years were used to calibrate and evaluate the infiltration algorithms and parameterisations. Important conclusions include: (1) the single most important factor that controls the infiltration at permafrost sites is ground thaw depth, (2) differences among the simulated infiltration by different algorithms and parameterisations were only found when the ground was frozen or during the initial fast thawing stages, but not after ground thaw reaches a critical depth of 15 to 30 cm, (3) despite similarities in simulated total infiltration after ground thaw reaches the critical depth, the choice of algorithm influenced the distribution of water among the soil layers, and (4) the ice impedance factor for hydraulic conductivity, which is commonly used in LSMs and HMs, may not be necessary once the water potential driven frozen soil parameterisation is employed. Results from this work provide guidelines that can be directly implemented in LSMs and HMs to improve their application in organic covered permafrost soils. Article in Journal/Newspaper Ice permafrost Directory of Open Access Journals: DOAJ Articles Hydrology and Earth System Sciences 14 5 729 750 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Technology T Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 |
spellingShingle |
Technology T Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 Y. Zhang S. K. Carey W. L. Quinton J. R. Janowicz J. W. Pomeroy G. N. Flerchinger Comparison of algorithms and parameterisations for infiltration into organic-covered permafrost soils |
topic_facet |
Technology T Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 |
description |
Infiltration into frozen and unfrozen soils is critical in hydrology, controlling active layer soil water dynamics and influencing runoff. Few Land Surface Models (LSMs) and Hydrological Models (HMs) have been developed, adapted or tested for frozen conditions and permafrost soils. Considering the vast geographical area influenced by freeze/thaw processes and permafrost, and the rapid environmental change observed worldwide in these regions, a need exists to improve models to better represent their hydrology. In this study, various infiltration algorithms and parameterisation methods, which are commonly employed in current LSMs and HMs were tested against detailed measurements at three sites in Canada's discontinuous permafrost region with organic soil depths ranging from 0.02 to 3 m. Field data from two consecutive years were used to calibrate and evaluate the infiltration algorithms and parameterisations. Important conclusions include: (1) the single most important factor that controls the infiltration at permafrost sites is ground thaw depth, (2) differences among the simulated infiltration by different algorithms and parameterisations were only found when the ground was frozen or during the initial fast thawing stages, but not after ground thaw reaches a critical depth of 15 to 30 cm, (3) despite similarities in simulated total infiltration after ground thaw reaches the critical depth, the choice of algorithm influenced the distribution of water among the soil layers, and (4) the ice impedance factor for hydraulic conductivity, which is commonly used in LSMs and HMs, may not be necessary once the water potential driven frozen soil parameterisation is employed. Results from this work provide guidelines that can be directly implemented in LSMs and HMs to improve their application in organic covered permafrost soils. |
format |
Article in Journal/Newspaper |
author |
Y. Zhang S. K. Carey W. L. Quinton J. R. Janowicz J. W. Pomeroy G. N. Flerchinger |
author_facet |
Y. Zhang S. K. Carey W. L. Quinton J. R. Janowicz J. W. Pomeroy G. N. Flerchinger |
author_sort |
Y. Zhang |
title |
Comparison of algorithms and parameterisations for infiltration into organic-covered permafrost soils |
title_short |
Comparison of algorithms and parameterisations for infiltration into organic-covered permafrost soils |
title_full |
Comparison of algorithms and parameterisations for infiltration into organic-covered permafrost soils |
title_fullStr |
Comparison of algorithms and parameterisations for infiltration into organic-covered permafrost soils |
title_full_unstemmed |
Comparison of algorithms and parameterisations for infiltration into organic-covered permafrost soils |
title_sort |
comparison of algorithms and parameterisations for infiltration into organic-covered permafrost soils |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doi.org/10.5194/hess-14-729-2010 https://doaj.org/article/ef5a6b0f85f24a4bab0f2268c7aeb1c1 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
Hydrology and Earth System Sciences, Vol 14, Iss 5, Pp 729-750 (2010) |
op_relation |
http://www.hydrol-earth-syst-sci.net/14/729/2010/hess-14-729-2010.pdf https://doaj.org/toc/1027-5606 https://doaj.org/toc/1607-7938 doi:10.5194/hess-14-729-2010 1027-5606 1607-7938 https://doaj.org/article/ef5a6b0f85f24a4bab0f2268c7aeb1c1 |
op_doi |
https://doi.org/10.5194/hess-14-729-2010 |
container_title |
Hydrology and Earth System Sciences |
container_volume |
14 |
container_issue |
5 |
container_start_page |
729 |
op_container_end_page |
750 |
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1766027586803073024 |