Evaluation of the ground surface Enthalpy balance from bedrock shallow borehole temperatures (Livingston Island, Maritime Antarctic)
International audience The annual evolution of the ground temperatures from Incinerador borehole in Livingston Island (South Shetlands, Antarctic) is studied. The borehole is 2.4 m deep and is located in a quartzite outcrop in the proximity of the Spanish Antarctic Station Juan Carlos I. In order to...
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ftunivnantes:oai:HAL:hal-00298539v1 2023-05-15T13:46:36+02:00 Evaluation of the ground surface Enthalpy balance from bedrock shallow borehole temperatures (Livingston Island, Maritime Antarctic) Ramos, M. Vieira, G. Department of Physics Okayama University Centre for Geographical Studies Lisbon Universidade de Lisboa = University of Lisbon (ULISBOA) 2008-03-31 https://hal.archives-ouvertes.fr/hal-00298539 https://hal.archives-ouvertes.fr/hal-00298539/document https://hal.archives-ouvertes.fr/hal-00298539/file/tcd-2-153-2008.pdf en eng HAL CCSD Copernicus hal-00298539 https://hal.archives-ouvertes.fr/hal-00298539 https://hal.archives-ouvertes.fr/hal-00298539/document https://hal.archives-ouvertes.fr/hal-00298539/file/tcd-2-153-2008.pdf info:eu-repo/semantics/OpenAccess ISSN: 1994-0432 EISSN: 1994-0440 The Cryosphere Discussions https://hal.archives-ouvertes.fr/hal-00298539 The Cryosphere Discussions, Copernicus, 2008, 2 (2), pp.153-184 [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 2008 ftunivnantes 2022-08-10T02:47:15Z International audience The annual evolution of the ground temperatures from Incinerador borehole in Livingston Island (South Shetlands, Antarctic) is studied. The borehole is 2.4 m deep and is located in a quartzite outcrop in the proximity of the Spanish Antarctic Station Juan Carlos I. In order to model the movement of the 0°C isotherm (velocity and maximum depth) hourly temperature profiles from: (i) the cooling periods of the frost seasons of 2000 to 2005, and (ii) the warming periods of the thaw seasons of 2002?2003, 2003?2004 and 2004?2005, were studied. In this modelling approach, heat gains and losses across ground surface are considered to be the causes for the 0°C isotherm movement. A methodological approach to calculate the Enthalpy change based on the thermodynamic analysis of the ground during the cooling and warming periods is proposed. The Enthalpy change is equivalent to the heat exchange through the ground surface during each season, thus enabling to describe the interaction ground-atmosphere and providing valuable data for studies on permafrost and periglacial processes. The bedrock density is considered to be constant in the borehole and initial isothermal conditions at 0°C are assumed to run the model. The final stages correspond to the temperatures at the end of the cooling and warming periods (annual minima and maxima). Article in Journal/Newspaper Antarc* Antarctic Livingston Island permafrost The Cryosphere The Cryosphere Discussions Université de Nantes: HAL-UNIV-NANTES Antarctic Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
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 Ramos, M. Vieira, G. Evaluation of the ground surface Enthalpy balance from bedrock shallow borehole temperatures (Livingston Island, Maritime Antarctic) |
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 annual evolution of the ground temperatures from Incinerador borehole in Livingston Island (South Shetlands, Antarctic) is studied. The borehole is 2.4 m deep and is located in a quartzite outcrop in the proximity of the Spanish Antarctic Station Juan Carlos I. In order to model the movement of the 0°C isotherm (velocity and maximum depth) hourly temperature profiles from: (i) the cooling periods of the frost seasons of 2000 to 2005, and (ii) the warming periods of the thaw seasons of 2002?2003, 2003?2004 and 2004?2005, were studied. In this modelling approach, heat gains and losses across ground surface are considered to be the causes for the 0°C isotherm movement. A methodological approach to calculate the Enthalpy change based on the thermodynamic analysis of the ground during the cooling and warming periods is proposed. The Enthalpy change is equivalent to the heat exchange through the ground surface during each season, thus enabling to describe the interaction ground-atmosphere and providing valuable data for studies on permafrost and periglacial processes. The bedrock density is considered to be constant in the borehole and initial isothermal conditions at 0°C are assumed to run the model. The final stages correspond to the temperatures at the end of the cooling and warming periods (annual minima and maxima). |
author2 |
Department of Physics Okayama University Centre for Geographical Studies Lisbon Universidade de Lisboa = University of Lisbon (ULISBOA) |
format |
Article in Journal/Newspaper |
author |
Ramos, M. Vieira, G. |
author_facet |
Ramos, M. Vieira, G. |
author_sort |
Ramos, M. |
title |
Evaluation of the ground surface Enthalpy balance from bedrock shallow borehole temperatures (Livingston Island, Maritime Antarctic) |
title_short |
Evaluation of the ground surface Enthalpy balance from bedrock shallow borehole temperatures (Livingston Island, Maritime Antarctic) |
title_full |
Evaluation of the ground surface Enthalpy balance from bedrock shallow borehole temperatures (Livingston Island, Maritime Antarctic) |
title_fullStr |
Evaluation of the ground surface Enthalpy balance from bedrock shallow borehole temperatures (Livingston Island, Maritime Antarctic) |
title_full_unstemmed |
Evaluation of the ground surface Enthalpy balance from bedrock shallow borehole temperatures (Livingston Island, Maritime Antarctic) |
title_sort |
evaluation of the ground surface enthalpy balance from bedrock shallow borehole temperatures (livingston island, maritime antarctic) |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.archives-ouvertes.fr/hal-00298539 https://hal.archives-ouvertes.fr/hal-00298539/document https://hal.archives-ouvertes.fr/hal-00298539/file/tcd-2-153-2008.pdf |
long_lat |
ENVELOPE(-60.500,-60.500,-62.600,-62.600) |
geographic |
Antarctic Livingston Island |
geographic_facet |
Antarctic Livingston Island |
genre |
Antarc* Antarctic Livingston Island permafrost The Cryosphere The Cryosphere Discussions |
genre_facet |
Antarc* Antarctic Livingston Island permafrost The Cryosphere The Cryosphere Discussions |
op_source |
ISSN: 1994-0432 EISSN: 1994-0440 The Cryosphere Discussions https://hal.archives-ouvertes.fr/hal-00298539 The Cryosphere Discussions, Copernicus, 2008, 2 (2), pp.153-184 |
op_relation |
hal-00298539 https://hal.archives-ouvertes.fr/hal-00298539 https://hal.archives-ouvertes.fr/hal-00298539/document https://hal.archives-ouvertes.fr/hal-00298539/file/tcd-2-153-2008.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766244511491555328 |