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 |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Applied and Environmental Soil Science
2016
|
Subjects: | |
Online Access: | https://doi.org/10.1155/2016/1769203 |
id |
fthindawi:oai:hindawi.com:10.1155/2016/1769203 |
---|---|
record_format |
openpolar |
spelling |
fthindawi:oai:hindawi.com:10.1155/2016/1769203 2023-05-15T13:59:59+02:00 Diurnal Variation of Soil Heat Flux at an Antarctic Local Area during Warmer Months Marco Alves Jacyra Soares 2016 https://doi.org/10.1155/2016/1769203 en eng Applied and Environmental Soil Science https://doi.org/10.1155/2016/1769203 Copyright © 2016 Marco Alves and Jacyra Soares. Research Article 2016 fthindawi https://doi.org/10.1155/2016/1769203 2019-05-26T06:18:16Z 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 Hindawi Publishing Corporation Antarctic Eta ENVELOPE(-62.917,-62.917,-64.300,-64.300) The Antarctic Applied and Environmental Soil Science 2016 1 9 |
institution |
Open Polar |
collection |
Hindawi Publishing Corporation |
op_collection_id |
fthindawi |
language |
English |
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 |
spellingShingle |
Marco Alves Jacyra Soares Diurnal Variation of Soil Heat Flux at an Antarctic Local Area during Warmer Months |
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 |
Applied and Environmental Soil Science |
publishDate |
2016 |
url |
https://doi.org/10.1155/2016/1769203 |
long_lat |
ENVELOPE(-62.917,-62.917,-64.300,-64.300) |
geographic |
Antarctic Eta The Antarctic |
geographic_facet |
Antarctic Eta The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://doi.org/10.1155/2016/1769203 |
op_rights |
Copyright © 2016 Marco Alves and Jacyra Soares. |
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_ |
1766268912196911104 |