Snow depth and the associated offset in ground temperatures in a landscape manipulated with snow-fences
Seasonal snow cover has an important impact on the difference between soil- and air temperature because of the insulation effect, and is therefore a key parameter in ecosystem models. However, it is still uncertain how specific variations in soil moisture, vegetation composition, and surface air war...
Published in: | Geoderma |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2023
|
Subjects: | |
Online Access: | https://doi.org/10.1016/j.geoderma.2023.116632 https://doaj.org/article/f4474f43a7304a55a801f264816581f7 |
id |
ftdoajarticles:oai:doaj.org/article:f4474f43a7304a55a801f264816581f7 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:f4474f43a7304a55a801f264816581f7 2023-10-09T21:49:31+02:00 Snow depth and the associated offset in ground temperatures in a landscape manipulated with snow-fences Yijing Liu Birger U. Hansen Bo Elberling Andreas Westergaard-Nielsen 2023-10-01T00:00:00Z https://doi.org/10.1016/j.geoderma.2023.116632 https://doaj.org/article/f4474f43a7304a55a801f264816581f7 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S0016706123003099 https://doaj.org/toc/1872-6259 1872-6259 doi:10.1016/j.geoderma.2023.116632 https://doaj.org/article/f4474f43a7304a55a801f264816581f7 Geoderma, Vol 438, Iss , Pp 116632- (2023) Snow insulation effects Soil temperature Temperature offset Snow fence Surface air warming Shrub removal Science Q article 2023 ftdoajarticles https://doi.org/10.1016/j.geoderma.2023.116632 2023-09-10T00:34:17Z Seasonal snow cover has an important impact on the difference between soil- and air temperature because of the insulation effect, and is therefore a key parameter in ecosystem models. However, it is still uncertain how specific variations in soil moisture, vegetation composition, and surface air warming, combined with snow dynamics such as compaction affect the difference between soil- and air temperature. Here, we present an analysis of 8 years (2012–2020) of snow dynamics in an Arctic ecosystem manipulation experiment (using snow fences) on Disko Island, West Greenland. We explore the snow insulation effect under different treatments (mesic tundra heath as a dry site and fen area as a wet site, snow addition from snow fences, warming using open top chambers, and shrub removal) on a plot-level scale. The snow fences significantly changed the inter-annual variation in snow depths and -phenology. The maximum annual mean snow depths were 90 cm on the control side and 122 cm on the snow addition side during all study years. Annual mean snow cover duration across 8 years was 234 days on the control side and 239 days on the snow addition side. The difference between soil- and air temperature was significantly higher on the snow addition side than on the control side of the snow fences. Based on a linear mixed-effects model, we conclude that the snow depth was the decisive factor affecting the difference between soil- and air temperature in the snow cover season (p < 0.0001). The change rate of the difference between soil- and air temperature, as a function of snow depth, was slower during the period before maximum snow depth than during the period between the day with maximum snow depth until snow ending day. During the snow-free season, the effects of the open top chambers were stronger than the effects of the shrub removal, and the combination of both contributed to the highest soil temperature in the dry site, but the warming effect of open top chambers was limited and shrub removal warmed soil temperature in ... Article in Journal/Newspaper Arctic Greenland Tundra Directory of Open Access Journals: DOAJ Articles Arctic Greenland Geoderma 438 116632 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Snow insulation effects Soil temperature Temperature offset Snow fence Surface air warming Shrub removal Science Q |
spellingShingle |
Snow insulation effects Soil temperature Temperature offset Snow fence Surface air warming Shrub removal Science Q Yijing Liu Birger U. Hansen Bo Elberling Andreas Westergaard-Nielsen Snow depth and the associated offset in ground temperatures in a landscape manipulated with snow-fences |
topic_facet |
Snow insulation effects Soil temperature Temperature offset Snow fence Surface air warming Shrub removal Science Q |
description |
Seasonal snow cover has an important impact on the difference between soil- and air temperature because of the insulation effect, and is therefore a key parameter in ecosystem models. However, it is still uncertain how specific variations in soil moisture, vegetation composition, and surface air warming, combined with snow dynamics such as compaction affect the difference between soil- and air temperature. Here, we present an analysis of 8 years (2012–2020) of snow dynamics in an Arctic ecosystem manipulation experiment (using snow fences) on Disko Island, West Greenland. We explore the snow insulation effect under different treatments (mesic tundra heath as a dry site and fen area as a wet site, snow addition from snow fences, warming using open top chambers, and shrub removal) on a plot-level scale. The snow fences significantly changed the inter-annual variation in snow depths and -phenology. The maximum annual mean snow depths were 90 cm on the control side and 122 cm on the snow addition side during all study years. Annual mean snow cover duration across 8 years was 234 days on the control side and 239 days on the snow addition side. The difference between soil- and air temperature was significantly higher on the snow addition side than on the control side of the snow fences. Based on a linear mixed-effects model, we conclude that the snow depth was the decisive factor affecting the difference between soil- and air temperature in the snow cover season (p < 0.0001). The change rate of the difference between soil- and air temperature, as a function of snow depth, was slower during the period before maximum snow depth than during the period between the day with maximum snow depth until snow ending day. During the snow-free season, the effects of the open top chambers were stronger than the effects of the shrub removal, and the combination of both contributed to the highest soil temperature in the dry site, but the warming effect of open top chambers was limited and shrub removal warmed soil temperature in ... |
format |
Article in Journal/Newspaper |
author |
Yijing Liu Birger U. Hansen Bo Elberling Andreas Westergaard-Nielsen |
author_facet |
Yijing Liu Birger U. Hansen Bo Elberling Andreas Westergaard-Nielsen |
author_sort |
Yijing Liu |
title |
Snow depth and the associated offset in ground temperatures in a landscape manipulated with snow-fences |
title_short |
Snow depth and the associated offset in ground temperatures in a landscape manipulated with snow-fences |
title_full |
Snow depth and the associated offset in ground temperatures in a landscape manipulated with snow-fences |
title_fullStr |
Snow depth and the associated offset in ground temperatures in a landscape manipulated with snow-fences |
title_full_unstemmed |
Snow depth and the associated offset in ground temperatures in a landscape manipulated with snow-fences |
title_sort |
snow depth and the associated offset in ground temperatures in a landscape manipulated with snow-fences |
publisher |
Elsevier |
publishDate |
2023 |
url |
https://doi.org/10.1016/j.geoderma.2023.116632 https://doaj.org/article/f4474f43a7304a55a801f264816581f7 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Greenland Tundra |
genre_facet |
Arctic Greenland Tundra |
op_source |
Geoderma, Vol 438, Iss , Pp 116632- (2023) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S0016706123003099 https://doaj.org/toc/1872-6259 1872-6259 doi:10.1016/j.geoderma.2023.116632 https://doaj.org/article/f4474f43a7304a55a801f264816581f7 |
op_doi |
https://doi.org/10.1016/j.geoderma.2023.116632 |
container_title |
Geoderma |
container_volume |
438 |
container_start_page |
116632 |
_version_ |
1779312539504476160 |