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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ftmdpi:oai:mdpi.com:/2072-4292/5/5/2093/ 2023-08-20T04:03:39+02:00 Divergent Arctic-Boreal Vegetation Changes between North America and Eurasia over the Past 30 Years Jian Bi Liang Xu Arindam Samanta Zaichun Zhu Ranga Myneni agris 2013-05-02 application/pdf https://doi.org/10.3390/rs5052093 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/rs5052093 https://creativecommons.org/licenses/by/3.0/ Remote Sensing; Volume 5; Issue 5; Pages: 2093-2112 GIMMS NDVI vegetation change North America Eurasia Text 2013 ftmdpi https://doi.org/10.3390/rs5052093 2023-07-31T20:32:27Z 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. Text Arctic Tundra MDPI Open Access Publishing Arctic Browning ENVELOPE(164.050,164.050,-74.617,-74.617) Remote Sensing 5 5 2093 2112 |
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Open Polar |
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MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
GIMMS NDVI vegetation change North America Eurasia |
spellingShingle |
GIMMS NDVI vegetation change North America Eurasia Jian Bi Liang Xu Arindam Samanta Zaichun Zhu Ranga Myneni Divergent Arctic-Boreal Vegetation Changes between North America and Eurasia over the Past 30 Years |
topic_facet |
GIMMS NDVI vegetation change North America Eurasia |
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 |
Text |
author |
Jian Bi Liang Xu Arindam Samanta Zaichun Zhu Ranga Myneni |
author_facet |
Jian Bi Liang Xu Arindam Samanta Zaichun Zhu Ranga Myneni |
author_sort |
Jian Bi |
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 |
Multidisciplinary Digital Publishing Institute |
publishDate |
2013 |
url |
https://doi.org/10.3390/rs5052093 |
op_coverage |
agris |
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; Volume 5; Issue 5; Pages: 2093-2112 |
op_relation |
https://dx.doi.org/10.3390/rs5052093 |
op_rights |
https://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.3390/rs5052093 |
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Remote Sensing |
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5 |
container_issue |
5 |
container_start_page |
2093 |
op_container_end_page |
2112 |
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1774714082934390784 |