Estimating Permafrost Active Layer Thickness (ALT) Biogeography over the Arctic Tundra
The geospatial model here presented estimates the permafrost active layer thickness (ALT) over the entire Arctic in the last 20 years, and it is based on the spatial and temporal oscillations measured by satellite-based essential variables associated with the thermal state of permafrost. The model i...
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ftdoajarticles:oai:doaj.org/article:1cf60b2906ba46e5b7dde44efccf4406 2024-09-15T17:34:49+00:00 Estimating Permafrost Active Layer Thickness (ALT) Biogeography over the Arctic Tundra Emiliana Valentini Marco Salvadore Serena Sapio Roberto Salzano Giovanni Bormidoni Andrea Taramelli Rosamaria Salvatori 2023-06-01T00:00:00Z https://doi.org/10.3390/ECRS2023-15843 https://doaj.org/article/1cf60b2906ba46e5b7dde44efccf4406 EN eng MDPI AG https://www.mdpi.com/2673-4931/29/1/13 https://doaj.org/toc/2673-4931 doi:10.3390/ECRS2023-15843 2673-4931 https://doaj.org/article/1cf60b2906ba46e5b7dde44efccf4406 Environmental Sciences Proceedings, Vol 29, Iss 1, p 13 (2023) permafrost active layer model Arctic amplification tundra greening Environmental sciences GE1-350 article 2023 ftdoajarticles https://doi.org/10.3390/ECRS2023-15843 2024-08-05T17:49:06Z The geospatial model here presented estimates the permafrost active layer thickness (ALT) over the entire Arctic in the last 20 years, and it is based on the spatial and temporal oscillations measured by satellite-based essential variables associated with the thermal state of permafrost. The model integrates the climate and soil components, such as the land surface temperature, the snow depth water equivalent, and the mid-summer albedo, with the structural and functional descriptors of Arctic tundra biome such as the fraction of absorbed photosynthetically active radiation. The distribution of estimated ALT varies according to the vegetation classes (mosses and lichens or grasses and shrubs), but a general increase has been estimated across the whole Arctic tundra region, with rates of up to 2 cm/year. Article in Journal/Newspaper Active layer thickness albedo permafrost Tundra Directory of Open Access Journals: DOAJ Articles ECRS 2023 13 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
permafrost active layer model Arctic amplification tundra greening Environmental sciences GE1-350 |
spellingShingle |
permafrost active layer model Arctic amplification tundra greening Environmental sciences GE1-350 Emiliana Valentini Marco Salvadore Serena Sapio Roberto Salzano Giovanni Bormidoni Andrea Taramelli Rosamaria Salvatori Estimating Permafrost Active Layer Thickness (ALT) Biogeography over the Arctic Tundra |
topic_facet |
permafrost active layer model Arctic amplification tundra greening Environmental sciences GE1-350 |
description |
The geospatial model here presented estimates the permafrost active layer thickness (ALT) over the entire Arctic in the last 20 years, and it is based on the spatial and temporal oscillations measured by satellite-based essential variables associated with the thermal state of permafrost. The model integrates the climate and soil components, such as the land surface temperature, the snow depth water equivalent, and the mid-summer albedo, with the structural and functional descriptors of Arctic tundra biome such as the fraction of absorbed photosynthetically active radiation. The distribution of estimated ALT varies according to the vegetation classes (mosses and lichens or grasses and shrubs), but a general increase has been estimated across the whole Arctic tundra region, with rates of up to 2 cm/year. |
format |
Article in Journal/Newspaper |
author |
Emiliana Valentini Marco Salvadore Serena Sapio Roberto Salzano Giovanni Bormidoni Andrea Taramelli Rosamaria Salvatori |
author_facet |
Emiliana Valentini Marco Salvadore Serena Sapio Roberto Salzano Giovanni Bormidoni Andrea Taramelli Rosamaria Salvatori |
author_sort |
Emiliana Valentini |
title |
Estimating Permafrost Active Layer Thickness (ALT) Biogeography over the Arctic Tundra |
title_short |
Estimating Permafrost Active Layer Thickness (ALT) Biogeography over the Arctic Tundra |
title_full |
Estimating Permafrost Active Layer Thickness (ALT) Biogeography over the Arctic Tundra |
title_fullStr |
Estimating Permafrost Active Layer Thickness (ALT) Biogeography over the Arctic Tundra |
title_full_unstemmed |
Estimating Permafrost Active Layer Thickness (ALT) Biogeography over the Arctic Tundra |
title_sort |
estimating permafrost active layer thickness (alt) biogeography over the arctic tundra |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/ECRS2023-15843 https://doaj.org/article/1cf60b2906ba46e5b7dde44efccf4406 |
genre |
Active layer thickness albedo permafrost Tundra |
genre_facet |
Active layer thickness albedo permafrost Tundra |
op_source |
Environmental Sciences Proceedings, Vol 29, Iss 1, p 13 (2023) |
op_relation |
https://www.mdpi.com/2673-4931/29/1/13 https://doaj.org/toc/2673-4931 doi:10.3390/ECRS2023-15843 2673-4931 https://doaj.org/article/1cf60b2906ba46e5b7dde44efccf4406 |
op_doi |
https://doi.org/10.3390/ECRS2023-15843 |
container_title |
ECRS 2023 |
container_start_page |
13 |
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1810295463236075520 |