Relationships between declining summer sea ice, increasing temperatures and changing vegetation in the Siberian Arctic tundra from MODIS time series (2000–11)
The concern about Arctic greening has grown recently as the phenomenon is thought to have significant influence on global climate via atmospheric carbon emissions. Earlier work on Arctic vegetation highlighted the role of summer sea ice decline in the enhanced warming and greening phenomena observed...
Published in: | Environmental Research Letters |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2012
|
Subjects: | |
Online Access: | https://research.wur.nl/en/publications/relationships-between-declining-summer-sea-ice-increasing-tempera https://doi.org/10.1088/1748-9326/7/4/044028 |
id |
ftunivwagenin:oai:library.wur.nl:wurpubs/431252 |
---|---|
record_format |
openpolar |
spelling |
ftunivwagenin:oai:library.wur.nl:wurpubs/431252 2024-02-04T09:56:59+01:00 Relationships between declining summer sea ice, increasing temperatures and changing vegetation in the Siberian Arctic tundra from MODIS time series (2000–11) Dutrieux, L.P. Bartholomeus, H. Herold, M. Verbesselt, J. 2012 application/pdf https://research.wur.nl/en/publications/relationships-between-declining-summer-sea-ice-increasing-tempera https://doi.org/10.1088/1748-9326/7/4/044028 en eng https://edepot.wur.nl/240600 https://research.wur.nl/en/publications/relationships-between-declining-summer-sea-ice-increasing-tempera doi:10.1088/1748-9326/7/4/044028 info:eu-repo/semantics/openAccess Wageningen University & Research Environmental Research Letters 7 (2012) 4 ISSN: 1748-9326 alaska amplification carbon climate-change community ecosystems high-latitudes ndvi responses shrub expansion info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2012 ftunivwagenin https://doi.org/10.1088/1748-9326/7/4/044028 2024-01-10T23:21:35Z The concern about Arctic greening has grown recently as the phenomenon is thought to have significant influence on global climate via atmospheric carbon emissions. Earlier work on Arctic vegetation highlighted the role of summer sea ice decline in the enhanced warming and greening phenomena observed in the region, but did not contain enough details for spatially characterizing the interactions between sea ice, temperature and vegetation photosynthetic absorption. By using 1 km resolution data from the Moderate Resolution Imaging Spectrometer (MODIS) as a primary data source, this study presents detailed maps of vegetation and temperature trends for the Siberian Arctic region, using the time integrated normalized difference vegetation index (TI-NDVI) and summer warmth index (SWI) calculated for the period 2000-11 to represent vegetation greenness and temperature respectively. Spatio-temporal relationships between the two indices and summer sea ice conditions were investigated with transects at eight locations using sea ice concentration data from the Special Sensor Microwave/Imager (SSM/I). In addition, the derived vegetation and temperature trends were compared among major Arctic vegetation types and bioclimate subzones. The fine resolution trend map produced confirms the overall greening (+1% yr(-1)) and warming (+0.27% yr(-1)) of the region, reported in previous studies, but also reveals browning areas. The causes of such local decreases in vegetation, while surrounding areas are experiencing the opposite reaction to changing conditions, are still unclear. Overall correlations between sea ice concentration and SWI as well as TI-NDVI decreased in strength with increasing distance from the coast, with a particularly pronounced pattern in the case of SWI. SWI appears to be driving TI-NDVI in many cases, but not systematically, highlighting the presence of limiting factors other than temperature for plant growth in the region. Further unravelling those limiting factors constitutes a priority in future research. ... Article in Journal/Newspaper Arctic Greening Arctic Climate change Sea ice Tundra Alaska Wageningen UR (University & Research Centre): Digital Library Arctic Browning ENVELOPE(164.050,164.050,-74.617,-74.617) Environmental Research Letters 7 4 044028 |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
alaska amplification carbon climate-change community ecosystems high-latitudes ndvi responses shrub expansion |
spellingShingle |
alaska amplification carbon climate-change community ecosystems high-latitudes ndvi responses shrub expansion Dutrieux, L.P. Bartholomeus, H. Herold, M. Verbesselt, J. Relationships between declining summer sea ice, increasing temperatures and changing vegetation in the Siberian Arctic tundra from MODIS time series (2000–11) |
topic_facet |
alaska amplification carbon climate-change community ecosystems high-latitudes ndvi responses shrub expansion |
description |
The concern about Arctic greening has grown recently as the phenomenon is thought to have significant influence on global climate via atmospheric carbon emissions. Earlier work on Arctic vegetation highlighted the role of summer sea ice decline in the enhanced warming and greening phenomena observed in the region, but did not contain enough details for spatially characterizing the interactions between sea ice, temperature and vegetation photosynthetic absorption. By using 1 km resolution data from the Moderate Resolution Imaging Spectrometer (MODIS) as a primary data source, this study presents detailed maps of vegetation and temperature trends for the Siberian Arctic region, using the time integrated normalized difference vegetation index (TI-NDVI) and summer warmth index (SWI) calculated for the period 2000-11 to represent vegetation greenness and temperature respectively. Spatio-temporal relationships between the two indices and summer sea ice conditions were investigated with transects at eight locations using sea ice concentration data from the Special Sensor Microwave/Imager (SSM/I). In addition, the derived vegetation and temperature trends were compared among major Arctic vegetation types and bioclimate subzones. The fine resolution trend map produced confirms the overall greening (+1% yr(-1)) and warming (+0.27% yr(-1)) of the region, reported in previous studies, but also reveals browning areas. The causes of such local decreases in vegetation, while surrounding areas are experiencing the opposite reaction to changing conditions, are still unclear. Overall correlations between sea ice concentration and SWI as well as TI-NDVI decreased in strength with increasing distance from the coast, with a particularly pronounced pattern in the case of SWI. SWI appears to be driving TI-NDVI in many cases, but not systematically, highlighting the presence of limiting factors other than temperature for plant growth in the region. Further unravelling those limiting factors constitutes a priority in future research. ... |
format |
Article in Journal/Newspaper |
author |
Dutrieux, L.P. Bartholomeus, H. Herold, M. Verbesselt, J. |
author_facet |
Dutrieux, L.P. Bartholomeus, H. Herold, M. Verbesselt, J. |
author_sort |
Dutrieux, L.P. |
title |
Relationships between declining summer sea ice, increasing temperatures and changing vegetation in the Siberian Arctic tundra from MODIS time series (2000–11) |
title_short |
Relationships between declining summer sea ice, increasing temperatures and changing vegetation in the Siberian Arctic tundra from MODIS time series (2000–11) |
title_full |
Relationships between declining summer sea ice, increasing temperatures and changing vegetation in the Siberian Arctic tundra from MODIS time series (2000–11) |
title_fullStr |
Relationships between declining summer sea ice, increasing temperatures and changing vegetation in the Siberian Arctic tundra from MODIS time series (2000–11) |
title_full_unstemmed |
Relationships between declining summer sea ice, increasing temperatures and changing vegetation in the Siberian Arctic tundra from MODIS time series (2000–11) |
title_sort |
relationships between declining summer sea ice, increasing temperatures and changing vegetation in the siberian arctic tundra from modis time series (2000–11) |
publishDate |
2012 |
url |
https://research.wur.nl/en/publications/relationships-between-declining-summer-sea-ice-increasing-tempera https://doi.org/10.1088/1748-9326/7/4/044028 |
long_lat |
ENVELOPE(164.050,164.050,-74.617,-74.617) |
geographic |
Arctic Browning |
geographic_facet |
Arctic Browning |
genre |
Arctic Greening Arctic Climate change Sea ice Tundra Alaska |
genre_facet |
Arctic Greening Arctic Climate change Sea ice Tundra Alaska |
op_source |
Environmental Research Letters 7 (2012) 4 ISSN: 1748-9326 |
op_relation |
https://edepot.wur.nl/240600 https://research.wur.nl/en/publications/relationships-between-declining-summer-sea-ice-increasing-tempera doi:10.1088/1748-9326/7/4/044028 |
op_rights |
info:eu-repo/semantics/openAccess Wageningen University & Research |
op_doi |
https://doi.org/10.1088/1748-9326/7/4/044028 |
container_title |
Environmental Research Letters |
container_volume |
7 |
container_issue |
4 |
container_start_page |
044028 |
_version_ |
1789961301006483456 |