Divergent Arctic-Boreal Vegetation Changes between North America and Eurasia over the Past 30 Years
Arctic-Boreal region—mainly consisting of tundra, shrub lands, and boreal forests—has been experiencing an amplified warming over the past 30 years. As the main driving force of vegetation growth in the north, temperature exhibits tight coupling with the Normalized Difference Vegetation Index (NDVI)...
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ftdoajarticles:oai:doaj.org/article:1ebbd55ea1c241b9bfb0ec573486d70b 2023-05-15T14:42:01+02:00 Divergent Arctic-Boreal Vegetation Changes between North America and Eurasia over the Past 30 Years Arindam Samanta Zaichun Zhu Ranga Myneni Jian Bi Liang Xu 2013-05-01T00:00:00Z https://doi.org/10.3390/rs5052093 https://doaj.org/article/1ebbd55ea1c241b9bfb0ec573486d70b EN eng MDPI AG http://www.mdpi.com/2072-4292/5/5/2093 https://doaj.org/toc/2072-4292 doi:10.3390/rs5052093 2072-4292 https://doaj.org/article/1ebbd55ea1c241b9bfb0ec573486d70b Remote Sensing, Vol 5, Iss 5, Pp 2093-2112 (2013) GIMMS NDVI vegetation change North America Eurasia Science Q article 2013 ftdoajarticles https://doi.org/10.3390/rs5052093 2022-12-31T15:21:24Z Arctic-Boreal region—mainly consisting of tundra, shrub lands, and boreal forests—has been experiencing an amplified warming over the past 30 years. As the main driving force of vegetation growth in the north, temperature exhibits tight coupling with the Normalized Difference Vegetation Index (NDVI)—a proxy to photosynthetic activity. However, the comparison between North America (NA) and northern Eurasia (EA) shows a weakened spatial dependency of vegetation growth on temperature changes in NA during the past decade. If this relationship holds over time, it suggests a 2/3 decrease in vegetation growth under the same rate of warming in NA, while the vegetation response in EA stays the same. This divergence accompanies a circumpolar widespread greening trend, but 20 times more browning in the Boreal NA compared to EA, and comparative greening and browning trends in the Arctic. These observed spatial patterns of NDVI are consistent with the temperature record, except in the Arctic NA, where vegetation exhibits a similar long-term trend of greening to EA under less warming. This unusual growth pattern in Arctic NA could be due to a lack of precipitation velocity compared to the temperature velocity, when taking velocity as a measure of northward migration of climatic conditions. Article in Journal/Newspaper Arctic Tundra Directory of Open Access Journals: DOAJ Articles Arctic Browning ENVELOPE(164.050,164.050,-74.617,-74.617) Remote Sensing 5 5 2093 2112 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
GIMMS NDVI vegetation change North America Eurasia Science Q |
spellingShingle |
GIMMS NDVI vegetation change North America Eurasia Science Q Arindam Samanta Zaichun Zhu Ranga Myneni Jian Bi Liang Xu Divergent Arctic-Boreal Vegetation Changes between North America and Eurasia over the Past 30 Years |
topic_facet |
GIMMS NDVI vegetation change North America Eurasia Science Q |
description |
Arctic-Boreal region—mainly consisting of tundra, shrub lands, and boreal forests—has been experiencing an amplified warming over the past 30 years. As the main driving force of vegetation growth in the north, temperature exhibits tight coupling with the Normalized Difference Vegetation Index (NDVI)—a proxy to photosynthetic activity. However, the comparison between North America (NA) and northern Eurasia (EA) shows a weakened spatial dependency of vegetation growth on temperature changes in NA during the past decade. If this relationship holds over time, it suggests a 2/3 decrease in vegetation growth under the same rate of warming in NA, while the vegetation response in EA stays the same. This divergence accompanies a circumpolar widespread greening trend, but 20 times more browning in the Boreal NA compared to EA, and comparative greening and browning trends in the Arctic. These observed spatial patterns of NDVI are consistent with the temperature record, except in the Arctic NA, where vegetation exhibits a similar long-term trend of greening to EA under less warming. This unusual growth pattern in Arctic NA could be due to a lack of precipitation velocity compared to the temperature velocity, when taking velocity as a measure of northward migration of climatic conditions. |
format |
Article in Journal/Newspaper |
author |
Arindam Samanta Zaichun Zhu Ranga Myneni Jian Bi Liang Xu |
author_facet |
Arindam Samanta Zaichun Zhu Ranga Myneni Jian Bi Liang Xu |
author_sort |
Arindam Samanta |
title |
Divergent Arctic-Boreal Vegetation Changes between North America and Eurasia over the Past 30 Years |
title_short |
Divergent Arctic-Boreal Vegetation Changes between North America and Eurasia over the Past 30 Years |
title_full |
Divergent Arctic-Boreal Vegetation Changes between North America and Eurasia over the Past 30 Years |
title_fullStr |
Divergent Arctic-Boreal Vegetation Changes between North America and Eurasia over the Past 30 Years |
title_full_unstemmed |
Divergent Arctic-Boreal Vegetation Changes between North America and Eurasia over the Past 30 Years |
title_sort |
divergent arctic-boreal vegetation changes between north america and eurasia over the past 30 years |
publisher |
MDPI AG |
publishDate |
2013 |
url |
https://doi.org/10.3390/rs5052093 https://doaj.org/article/1ebbd55ea1c241b9bfb0ec573486d70b |
long_lat |
ENVELOPE(164.050,164.050,-74.617,-74.617) |
geographic |
Arctic Browning |
geographic_facet |
Arctic Browning |
genre |
Arctic Tundra |
genre_facet |
Arctic Tundra |
op_source |
Remote Sensing, Vol 5, Iss 5, Pp 2093-2112 (2013) |
op_relation |
http://www.mdpi.com/2072-4292/5/5/2093 https://doaj.org/toc/2072-4292 doi:10.3390/rs5052093 2072-4292 https://doaj.org/article/1ebbd55ea1c241b9bfb0ec573486d70b |
op_doi |
https://doi.org/10.3390/rs5052093 |
container_title |
Remote Sensing |
container_volume |
5 |
container_issue |
5 |
container_start_page |
2093 |
op_container_end_page |
2112 |
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1766313682365579264 |