Groundwater recharge and capillary rise in a clayey catchment: modulation by topography and the Arctic Oscillation
International audience The signature left by capillary rise in the water balance is investigated for a 16 km 2 clayey till catchment in Denmark. Integrated modelling for 1981?99 substantiates a 30% uphill increase in average net recharge, caused by the reduction in capillary rise when the water tabl...
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ftinsu:oai:HAL:hal-00304984v1 2023-11-12T04:12:25+01:00 Groundwater recharge and capillary rise in a clayey catchment: modulation by topography and the Arctic Oscillation Schrøder, T. M. Rosbjerg, D. Jet Propulsion Laboratory (JPL) NASA-California Institute of Technology (CALTECH) Environment & Resources DTU 2004 https://hal.science/hal-00304984 https://hal.science/hal-00304984/document https://hal.science/hal-00304984/file/hess-8-1090-2004.pdf en eng HAL CCSD European Geosciences Union hal-00304984 https://hal.science/hal-00304984 https://hal.science/hal-00304984/document https://hal.science/hal-00304984/file/hess-8-1090-2004.pdf info:eu-repo/semantics/OpenAccess ISSN: 1812-2108 EISSN: 1812-2116 Hydrology and Earth System Sciences Discussions https://hal.science/hal-00304984 Hydrology and Earth System Sciences Discussions, 2004, 8 (6), pp.1090-1102 [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2004 ftinsu 2023-10-25T16:25:55Z International audience The signature left by capillary rise in the water balance is investigated for a 16 km 2 clayey till catchment in Denmark. Integrated modelling for 1981?99 substantiates a 30% uphill increase in average net recharge, caused by the reduction in capillary rise when the water table declines. Calibration of the groundwater module is constrained by stream flow separation and water table wells. Net recharge and a priori parameterisation has been estimated from those same data, an automatic rain gauge and electrical sounding. Evaluation of snow storage and compensation for a simplified formulation of unsaturated hydraulic conductivity contribute to a modelling of the precipitation-runoff relation that compares well with measurements in other underdrained clayey catchments. The capillary rise is assumed to be responsible for a 30% correlation between annual evapotranspiration and the North Atlantic Oscillation. The observed correlation, and the hypothesis of a hemispherical Arctic Oscillation linking atmospheric pressure with surface temperature, suggests that modelled evapotranspiration from clayey areas is better than precipitation records for identifying the region influenced by oscillation. Keywords: catchment modelling, MIKE SHE, capillary rise, degree-day model, climate Article in Journal/Newspaper Arctic North Atlantic North Atlantic oscillation Institut national des sciences de l'Univers: HAL-INSU Arctic |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Schrøder, T. M. Rosbjerg, D. Groundwater recharge and capillary rise in a clayey catchment: modulation by topography and the Arctic Oscillation |
topic_facet |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience The signature left by capillary rise in the water balance is investigated for a 16 km 2 clayey till catchment in Denmark. Integrated modelling for 1981?99 substantiates a 30% uphill increase in average net recharge, caused by the reduction in capillary rise when the water table declines. Calibration of the groundwater module is constrained by stream flow separation and water table wells. Net recharge and a priori parameterisation has been estimated from those same data, an automatic rain gauge and electrical sounding. Evaluation of snow storage and compensation for a simplified formulation of unsaturated hydraulic conductivity contribute to a modelling of the precipitation-runoff relation that compares well with measurements in other underdrained clayey catchments. The capillary rise is assumed to be responsible for a 30% correlation between annual evapotranspiration and the North Atlantic Oscillation. The observed correlation, and the hypothesis of a hemispherical Arctic Oscillation linking atmospheric pressure with surface temperature, suggests that modelled evapotranspiration from clayey areas is better than precipitation records for identifying the region influenced by oscillation. Keywords: catchment modelling, MIKE SHE, capillary rise, degree-day model, climate |
author2 |
Jet Propulsion Laboratory (JPL) NASA-California Institute of Technology (CALTECH) Environment & Resources DTU |
format |
Article in Journal/Newspaper |
author |
Schrøder, T. M. Rosbjerg, D. |
author_facet |
Schrøder, T. M. Rosbjerg, D. |
author_sort |
Schrøder, T. M. |
title |
Groundwater recharge and capillary rise in a clayey catchment: modulation by topography and the Arctic Oscillation |
title_short |
Groundwater recharge and capillary rise in a clayey catchment: modulation by topography and the Arctic Oscillation |
title_full |
Groundwater recharge and capillary rise in a clayey catchment: modulation by topography and the Arctic Oscillation |
title_fullStr |
Groundwater recharge and capillary rise in a clayey catchment: modulation by topography and the Arctic Oscillation |
title_full_unstemmed |
Groundwater recharge and capillary rise in a clayey catchment: modulation by topography and the Arctic Oscillation |
title_sort |
groundwater recharge and capillary rise in a clayey catchment: modulation by topography and the arctic oscillation |
publisher |
HAL CCSD |
publishDate |
2004 |
url |
https://hal.science/hal-00304984 https://hal.science/hal-00304984/document https://hal.science/hal-00304984/file/hess-8-1090-2004.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic North Atlantic oscillation |
genre_facet |
Arctic North Atlantic North Atlantic oscillation |
op_source |
ISSN: 1812-2108 EISSN: 1812-2116 Hydrology and Earth System Sciences Discussions https://hal.science/hal-00304984 Hydrology and Earth System Sciences Discussions, 2004, 8 (6), pp.1090-1102 |
op_relation |
hal-00304984 https://hal.science/hal-00304984 https://hal.science/hal-00304984/document https://hal.science/hal-00304984/file/hess-8-1090-2004.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782330961510268928 |