Diurnal Variation of Soil Heat Flux at an Antarctic Local Area during Warmer Months
Soil heat flux (G) is one term in the energy balance equation, and it can be particularly important in regions with arid, bare, or thinly vegetated soil surfaces. However, in remote areas such as the Antarctic, this measurement is not routinely performed. The analysis of observational data collected...
Published in: | Applied and Environmental Soil Science |
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2016
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Online Access: | https://doi.org/10.1155/2016/1769203 https://doaj.org/article/86f5fee621ab4d878e3f4e1638d69580 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:86f5fee621ab4d878e3f4e1638d69580 2023-05-15T14:03:46+02:00 Diurnal Variation of Soil Heat Flux at an Antarctic Local Area during Warmer Months Marco Alves Jacyra Soares 2016-01-01 https://doi.org/10.1155/2016/1769203 https://doaj.org/article/86f5fee621ab4d878e3f4e1638d69580 en eng Hindawi Limited 1687-7667 1687-7675 doi:10.1155/2016/1769203 https://doaj.org/article/86f5fee621ab4d878e3f4e1638d69580 undefined Applied and Environmental Soil Science, Vol 2016 (2016) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2016 fttriple https://doi.org/10.1155/2016/1769203 2023-01-22T19:31:01Z Soil heat flux (G) is one term in the energy balance equation, and it can be particularly important in regions with arid, bare, or thinly vegetated soil surfaces. However, in remote areas such as the Antarctic, this measurement is not routinely performed. The analysis of observational data collected by the ETA Project at the Brazilian Antarctic Station from December 2013 to March 2014 showed that, for the total daily energy flux, the surface soil flux heats the deeper soil layers during December and January and G acts as a heat source to the outer soil layers during February and March. With regard to daytime energy flux, G acts as a source of heat to the deeper layers. During the night-time, the soil is a heat source to the shallower soil layers and represents at least 29% of the net night-time radiation. A relatively simple method—the objective hysteresis method (OHM)—was successfully applied to determine the surface soil heat flux using net radiation observations. A priori, the OHM coefficients obtained in this study may only be used for short-time parameterizations and for filling data gaps at this specific site. Article in Journal/Newspaper Antarc* Antarctic Unknown Antarctic The Antarctic Eta ENVELOPE(-62.917,-62.917,-64.300,-64.300) Applied and Environmental Soil Science 2016 1 9 |
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language |
English |
topic |
geo envir |
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geo envir Marco Alves Jacyra Soares Diurnal Variation of Soil Heat Flux at an Antarctic Local Area during Warmer Months |
topic_facet |
geo envir |
description |
Soil heat flux (G) is one term in the energy balance equation, and it can be particularly important in regions with arid, bare, or thinly vegetated soil surfaces. However, in remote areas such as the Antarctic, this measurement is not routinely performed. The analysis of observational data collected by the ETA Project at the Brazilian Antarctic Station from December 2013 to March 2014 showed that, for the total daily energy flux, the surface soil flux heats the deeper soil layers during December and January and G acts as a heat source to the outer soil layers during February and March. With regard to daytime energy flux, G acts as a source of heat to the deeper layers. During the night-time, the soil is a heat source to the shallower soil layers and represents at least 29% of the net night-time radiation. A relatively simple method—the objective hysteresis method (OHM)—was successfully applied to determine the surface soil heat flux using net radiation observations. A priori, the OHM coefficients obtained in this study may only be used for short-time parameterizations and for filling data gaps at this specific site. |
format |
Article in Journal/Newspaper |
author |
Marco Alves Jacyra Soares |
author_facet |
Marco Alves Jacyra Soares |
author_sort |
Marco Alves |
title |
Diurnal Variation of Soil Heat Flux at an Antarctic Local Area during Warmer Months |
title_short |
Diurnal Variation of Soil Heat Flux at an Antarctic Local Area during Warmer Months |
title_full |
Diurnal Variation of Soil Heat Flux at an Antarctic Local Area during Warmer Months |
title_fullStr |
Diurnal Variation of Soil Heat Flux at an Antarctic Local Area during Warmer Months |
title_full_unstemmed |
Diurnal Variation of Soil Heat Flux at an Antarctic Local Area during Warmer Months |
title_sort |
diurnal variation of soil heat flux at an antarctic local area during warmer months |
publisher |
Hindawi Limited |
publishDate |
2016 |
url |
https://doi.org/10.1155/2016/1769203 https://doaj.org/article/86f5fee621ab4d878e3f4e1638d69580 |
long_lat |
ENVELOPE(-62.917,-62.917,-64.300,-64.300) |
geographic |
Antarctic The Antarctic Eta |
geographic_facet |
Antarctic The Antarctic Eta |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Applied and Environmental Soil Science, Vol 2016 (2016) |
op_relation |
1687-7667 1687-7675 doi:10.1155/2016/1769203 https://doaj.org/article/86f5fee621ab4d878e3f4e1638d69580 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1155/2016/1769203 |
container_title |
Applied and Environmental Soil Science |
container_volume |
2016 |
container_start_page |
1 |
op_container_end_page |
9 |
_version_ |
1766274609796087808 |