Vegetation phenology in Greenland and links to cryospheric change
ABSTRACT Recent greening of vegetation across the Arctic is associated with warming temperatures, hydrologic change and shorter snow-covered periods. Here we investigated trends for a subset of arctic vegetation on the island of Greenland. Vegetation in Greenland is unique due to its close proximity...
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2018
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Online Access: | http://dx.doi.org/10.1017/aog.2018.24 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305518000241 |
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crcambridgeupr:10.1017/aog.2018.24 2024-06-09T07:38:30+00:00 Vegetation phenology in Greenland and links to cryospheric change Thompson, Jeffery A. Koenig, Lora S. 2018 http://dx.doi.org/10.1017/aog.2018.24 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305518000241 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Annals of Glaciology volume 59, issue 77, page 59-68 ISSN 0260-3055 1727-5644 journal-article 2018 crcambridgeupr https://doi.org/10.1017/aog.2018.24 2024-05-15T13:16:32Z ABSTRACT Recent greening of vegetation across the Arctic is associated with warming temperatures, hydrologic change and shorter snow-covered periods. Here we investigated trends for a subset of arctic vegetation on the island of Greenland. Vegetation in Greenland is unique due to its close proximity to the Greenland Ice Sheet and its proportionally large connection to the Greenlandic population through the hunting of grazing animals. The aim of this study was to determine whether or not longer snow-free periods (SFPs) were causing Greenlandic vegetation to dry out and become less productive. If vegetation was drying out, a subsequent aim of the study was to determine how widespread the drying was across Greenland. We utilized a 15-year time-series obtained by the MODerate Resolution Imaging Spectroradiometer (MODIS) to analyze the Greenland vegetation by deriving descriptors corresponding with the SFP, the number of cumulative growing degree-days and the time-integrated Normalized Difference Vegetation Index. While the productivity of most vegetated areas increased in response to longer growing periods, there were localized regions that exhibited signs consistent with the drying hypothesis. In these areas, vegetation productivity decreased in response to longer SFPs and more accumulated growing degree-days. Article in Journal/Newspaper Annals of Glaciology Arctic Greenland greenlandic Ice Sheet Cambridge University Press Arctic Greenland Annals of Glaciology 59 77 59 68 |
institution |
Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
ABSTRACT Recent greening of vegetation across the Arctic is associated with warming temperatures, hydrologic change and shorter snow-covered periods. Here we investigated trends for a subset of arctic vegetation on the island of Greenland. Vegetation in Greenland is unique due to its close proximity to the Greenland Ice Sheet and its proportionally large connection to the Greenlandic population through the hunting of grazing animals. The aim of this study was to determine whether or not longer snow-free periods (SFPs) were causing Greenlandic vegetation to dry out and become less productive. If vegetation was drying out, a subsequent aim of the study was to determine how widespread the drying was across Greenland. We utilized a 15-year time-series obtained by the MODerate Resolution Imaging Spectroradiometer (MODIS) to analyze the Greenland vegetation by deriving descriptors corresponding with the SFP, the number of cumulative growing degree-days and the time-integrated Normalized Difference Vegetation Index. While the productivity of most vegetated areas increased in response to longer growing periods, there were localized regions that exhibited signs consistent with the drying hypothesis. In these areas, vegetation productivity decreased in response to longer SFPs and more accumulated growing degree-days. |
format |
Article in Journal/Newspaper |
author |
Thompson, Jeffery A. Koenig, Lora S. |
spellingShingle |
Thompson, Jeffery A. Koenig, Lora S. Vegetation phenology in Greenland and links to cryospheric change |
author_facet |
Thompson, Jeffery A. Koenig, Lora S. |
author_sort |
Thompson, Jeffery A. |
title |
Vegetation phenology in Greenland and links to cryospheric change |
title_short |
Vegetation phenology in Greenland and links to cryospheric change |
title_full |
Vegetation phenology in Greenland and links to cryospheric change |
title_fullStr |
Vegetation phenology in Greenland and links to cryospheric change |
title_full_unstemmed |
Vegetation phenology in Greenland and links to cryospheric change |
title_sort |
vegetation phenology in greenland and links to cryospheric change |
publisher |
Cambridge University Press (CUP) |
publishDate |
2018 |
url |
http://dx.doi.org/10.1017/aog.2018.24 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305518000241 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Annals of Glaciology Arctic Greenland greenlandic Ice Sheet |
genre_facet |
Annals of Glaciology Arctic Greenland greenlandic Ice Sheet |
op_source |
Annals of Glaciology volume 59, issue 77, page 59-68 ISSN 0260-3055 1727-5644 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/aog.2018.24 |
container_title |
Annals of Glaciology |
container_volume |
59 |
container_issue |
77 |
container_start_page |
59 |
op_container_end_page |
68 |
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1801373300124811264 |