Two distinct waves of greening in northeastern Canada: summer warming does not tell the whole story
Arctic vegetation cover has been increasing over the last 40 years, which has been attributed mostly to increases in temperature. Yet, the temporal dimension of this greening remains overlooked as it is often viewed as a monotonic trend. Here, using 11 year long rolling windows on 30 m resolution La...
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Online Access: | https://doi.org/10.1088/1748-9326/ac74d6 https://doaj.org/article/ad45b881671c48b89e326a23213f2d84 |
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ftdoajarticles:oai:doaj.org/article:ad45b881671c48b89e326a23213f2d84 2023-09-05T13:17:10+02:00 Two distinct waves of greening in northeastern Canada: summer warming does not tell the whole story Arthur Bayle Alexandre Roy Jean-Pierre Dedieu Stéphane Boudreau Philippe Choler Esther Lévesque 2022-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/ac74d6 https://doaj.org/article/ad45b881671c48b89e326a23213f2d84 EN eng IOP Publishing https://doi.org/10.1088/1748-9326/ac74d6 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/ac74d6 1748-9326 https://doaj.org/article/ad45b881671c48b89e326a23213f2d84 Environmental Research Letters, Vol 17, Iss 6, p 064051 (2022) greening Landsat high latitude vegetation NDVI Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2022 ftdoajarticles https://doi.org/10.1088/1748-9326/ac74d6 2023-08-13T00:36:40Z Arctic vegetation cover has been increasing over the last 40 years, which has been attributed mostly to increases in temperature. Yet, the temporal dimension of this greening remains overlooked as it is often viewed as a monotonic trend. Here, using 11 year long rolling windows on 30 m resolution Landsat data, we examined the temporal variations in greening in north-eastern Canada and its dependence on summer warming. We found two significant and distinct waves of greening, centred around 1996 and 2011, and observed in all land cover types (from boreal forest to arctic tundra). The first wave was more intense and correlated with increasing summer temperature while no such relation was found for the weaker second wave. More specifically, the greening lasted longer at higher elevation during the first wave which translates to a prolonged correlation between greening and summer warming compared to low-altitude vegetation. Our work explored a forsaken complexity of high latitude greening trends and associated drivers and has raised new questions that warrant further research highlighting the importance to include temporal dimension to greening analyses in conjunction with common spatial gradients. Article in Journal/Newspaper Arctic Tundra Directory of Open Access Journals: DOAJ Articles Arctic Canada Environmental Research Letters 17 6 064051 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
greening Landsat high latitude vegetation NDVI Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
greening Landsat high latitude vegetation NDVI Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 Arthur Bayle Alexandre Roy Jean-Pierre Dedieu Stéphane Boudreau Philippe Choler Esther Lévesque Two distinct waves of greening in northeastern Canada: summer warming does not tell the whole story |
topic_facet |
greening Landsat high latitude vegetation NDVI Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
Arctic vegetation cover has been increasing over the last 40 years, which has been attributed mostly to increases in temperature. Yet, the temporal dimension of this greening remains overlooked as it is often viewed as a monotonic trend. Here, using 11 year long rolling windows on 30 m resolution Landsat data, we examined the temporal variations in greening in north-eastern Canada and its dependence on summer warming. We found two significant and distinct waves of greening, centred around 1996 and 2011, and observed in all land cover types (from boreal forest to arctic tundra). The first wave was more intense and correlated with increasing summer temperature while no such relation was found for the weaker second wave. More specifically, the greening lasted longer at higher elevation during the first wave which translates to a prolonged correlation between greening and summer warming compared to low-altitude vegetation. Our work explored a forsaken complexity of high latitude greening trends and associated drivers and has raised new questions that warrant further research highlighting the importance to include temporal dimension to greening analyses in conjunction with common spatial gradients. |
format |
Article in Journal/Newspaper |
author |
Arthur Bayle Alexandre Roy Jean-Pierre Dedieu Stéphane Boudreau Philippe Choler Esther Lévesque |
author_facet |
Arthur Bayle Alexandre Roy Jean-Pierre Dedieu Stéphane Boudreau Philippe Choler Esther Lévesque |
author_sort |
Arthur Bayle |
title |
Two distinct waves of greening in northeastern Canada: summer warming does not tell the whole story |
title_short |
Two distinct waves of greening in northeastern Canada: summer warming does not tell the whole story |
title_full |
Two distinct waves of greening in northeastern Canada: summer warming does not tell the whole story |
title_fullStr |
Two distinct waves of greening in northeastern Canada: summer warming does not tell the whole story |
title_full_unstemmed |
Two distinct waves of greening in northeastern Canada: summer warming does not tell the whole story |
title_sort |
two distinct waves of greening in northeastern canada: summer warming does not tell the whole story |
publisher |
IOP Publishing |
publishDate |
2022 |
url |
https://doi.org/10.1088/1748-9326/ac74d6 https://doaj.org/article/ad45b881671c48b89e326a23213f2d84 |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic Tundra |
genre_facet |
Arctic Tundra |
op_source |
Environmental Research Letters, Vol 17, Iss 6, p 064051 (2022) |
op_relation |
https://doi.org/10.1088/1748-9326/ac74d6 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/ac74d6 1748-9326 https://doaj.org/article/ad45b881671c48b89e326a23213f2d84 |
op_doi |
https://doi.org/10.1088/1748-9326/ac74d6 |
container_title |
Environmental Research Letters |
container_volume |
17 |
container_issue |
6 |
container_start_page |
064051 |
_version_ |
1776198452283179008 |