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...
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ftdoajarticles:oai:doaj.org/article:86f5fee621ab4d878e3f4e1638d69580 2024-09-15T17:43:56+00:00 Diurnal Variation of Soil Heat Flux at an Antarctic Local Area during Warmer Months Marco Alves Jacyra Soares 2016-01-01T00:00:00Z https://doi.org/10.1155/2016/1769203 https://doaj.org/article/86f5fee621ab4d878e3f4e1638d69580 EN eng Wiley http://dx.doi.org/10.1155/2016/1769203 https://doaj.org/toc/1687-7667 https://doaj.org/toc/1687-7675 1687-7667 1687-7675 doi:10.1155/2016/1769203 https://doaj.org/article/86f5fee621ab4d878e3f4e1638d69580 Applied and Environmental Soil Science, Vol 2016 (2016) Agriculture (General) S1-972 Environmental sciences GE1-350 article 2016 ftdoajarticles https://doi.org/10.1155/2016/1769203 2024-08-05T17:48:32Z 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 Directory of Open Access Journals: DOAJ Articles Applied and Environmental Soil Science 2016 1 9 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Agriculture (General) S1-972 Environmental sciences GE1-350 |
spellingShingle |
Agriculture (General) S1-972 Environmental sciences GE1-350 Marco Alves Jacyra Soares Diurnal Variation of Soil Heat Flux at an Antarctic Local Area during Warmer Months |
topic_facet |
Agriculture (General) S1-972 Environmental sciences GE1-350 |
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 |
Wiley |
publishDate |
2016 |
url |
https://doi.org/10.1155/2016/1769203 https://doaj.org/article/86f5fee621ab4d878e3f4e1638d69580 |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Applied and Environmental Soil Science, Vol 2016 (2016) |
op_relation |
http://dx.doi.org/10.1155/2016/1769203 https://doaj.org/toc/1687-7667 https://doaj.org/toc/1687-7675 1687-7667 1687-7675 doi:10.1155/2016/1769203 https://doaj.org/article/86f5fee621ab4d878e3f4e1638d69580 |
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_ |
1810491159646044160 |