Spatial and temporal predictions of soil moisture patterns and evaporative losses using TOPMODEL and the GASFLUX model for an Alaskan catchment
By using topographic indices as derived from a Digital Terrain Models (DTM), it is possible to represent the heterogeneity within a landscape. This heterogeneity can reflect both long term evolutionary patterns seen in a landscape and the short term forcing of flow dynamics during storm events. By s...
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ftdoajarticles:oai:doaj.org/article:5b436369bf6d41c9a1a1d310a6cd6138 2023-05-15T18:40:30+02:00 Spatial and temporal predictions of soil moisture patterns and evaporative losses using TOPMODEL and the GASFLUX model for an Alaskan catchment P. F. Quinn B. Ostendorf K. Beven J. Tenhunen 1998-01-01T00:00:00Z https://doaj.org/article/5b436369bf6d41c9a1a1d310a6cd6138 EN eng Copernicus Publications http://www.hydrol-earth-syst-sci.net/2/51/1998/hess-2-51-1998.pdf https://doaj.org/toc/1027-5606 https://doaj.org/toc/1607-7938 1027-5606 1607-7938 https://doaj.org/article/5b436369bf6d41c9a1a1d310a6cd6138 Hydrology and Earth System Sciences, Vol 2, Iss 1, Pp 51-64 (1998) Technology T Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 article 1998 ftdoajarticles 2022-12-31T12:08:19Z By using topographic indices as derived from a Digital Terrain Models (DTM), it is possible to represent the heterogeneity within a landscape. This heterogeneity can reflect both long term evolutionary patterns seen in a landscape and the short term forcing of flow dynamics during storm events. By spatial analysis, the linkage between the geomorphological- hydrological-plant physiological phenomena can be examined. In this study, a direct link will be established between the topographically-driven hydrological phenomena and the eco-physiological response. The topographic distribution function of TOPMODEL is used to control the spatial and temporal flux of the channel flow and water table. The plant physiological model GAS-FLUX is used to give a spatially and temporally dissaggregated species-sensitive estimate of evapotranspiration flux. Evapotranspiration is sensitive to the vegetation phonology, to tundra community physiology and to the temperature regime. A simple linking of TOPMODEL and the GAS-FLUX model is applied to a summer snow-free period to the Imnavait catchment, Alaska (2.2 km 2 ). A species-sensitive evapotranspiration model proved to give the highest quality results when validated against flow observations. Predicted dynamics of variable source area and the component hydrological processes are illustrated. Article in Journal/Newspaper Tundra Alaska Directory of Open Access Journals: DOAJ Articles |
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Open Polar |
collection |
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 |
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Technology T Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 P. F. Quinn B. Ostendorf K. Beven J. Tenhunen Spatial and temporal predictions of soil moisture patterns and evaporative losses using TOPMODEL and the GASFLUX model for an Alaskan catchment |
topic_facet |
Technology T Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 |
description |
By using topographic indices as derived from a Digital Terrain Models (DTM), it is possible to represent the heterogeneity within a landscape. This heterogeneity can reflect both long term evolutionary patterns seen in a landscape and the short term forcing of flow dynamics during storm events. By spatial analysis, the linkage between the geomorphological- hydrological-plant physiological phenomena can be examined. In this study, a direct link will be established between the topographically-driven hydrological phenomena and the eco-physiological response. The topographic distribution function of TOPMODEL is used to control the spatial and temporal flux of the channel flow and water table. The plant physiological model GAS-FLUX is used to give a spatially and temporally dissaggregated species-sensitive estimate of evapotranspiration flux. Evapotranspiration is sensitive to the vegetation phonology, to tundra community physiology and to the temperature regime. A simple linking of TOPMODEL and the GAS-FLUX model is applied to a summer snow-free period to the Imnavait catchment, Alaska (2.2 km 2 ). A species-sensitive evapotranspiration model proved to give the highest quality results when validated against flow observations. Predicted dynamics of variable source area and the component hydrological processes are illustrated. |
format |
Article in Journal/Newspaper |
author |
P. F. Quinn B. Ostendorf K. Beven J. Tenhunen |
author_facet |
P. F. Quinn B. Ostendorf K. Beven J. Tenhunen |
author_sort |
P. F. Quinn |
title |
Spatial and temporal predictions of soil moisture patterns and evaporative losses using TOPMODEL and the GASFLUX model for an Alaskan catchment |
title_short |
Spatial and temporal predictions of soil moisture patterns and evaporative losses using TOPMODEL and the GASFLUX model for an Alaskan catchment |
title_full |
Spatial and temporal predictions of soil moisture patterns and evaporative losses using TOPMODEL and the GASFLUX model for an Alaskan catchment |
title_fullStr |
Spatial and temporal predictions of soil moisture patterns and evaporative losses using TOPMODEL and the GASFLUX model for an Alaskan catchment |
title_full_unstemmed |
Spatial and temporal predictions of soil moisture patterns and evaporative losses using TOPMODEL and the GASFLUX model for an Alaskan catchment |
title_sort |
spatial and temporal predictions of soil moisture patterns and evaporative losses using topmodel and the gasflux model for an alaskan catchment |
publisher |
Copernicus Publications |
publishDate |
1998 |
url |
https://doaj.org/article/5b436369bf6d41c9a1a1d310a6cd6138 |
genre |
Tundra Alaska |
genre_facet |
Tundra Alaska |
op_source |
Hydrology and Earth System Sciences, Vol 2, Iss 1, Pp 51-64 (1998) |
op_relation |
http://www.hydrol-earth-syst-sci.net/2/51/1998/hess-2-51-1998.pdf https://doaj.org/toc/1027-5606 https://doaj.org/toc/1607-7938 1027-5606 1607-7938 https://doaj.org/article/5b436369bf6d41c9a1a1d310a6cd6138 |
_version_ |
1766229871072116736 |