Snow cover and vegetation-induced decrease in global albedo from 2002 to 2016
Land surface albedo is an essential parameter in regional and global climate models, and it is markedly influenced by land cover change. Variations in the albedo can affect the surface radiation budget and further impact the global climate. In this study, the interannual variation of albedo from 200...
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American Geophysical Union
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ftunivreading:oai:centaur.reading.ac.uk:75024 2024-06-23T07:57:18+00:00 Snow cover and vegetation-induced decrease in global albedo from 2002 to 2016 Li, Qiuping Ma, Mingguo Wu, Xiaodan Yang, Hong 2018-01-16 text https://centaur.reading.ac.uk/75024/ https://centaur.reading.ac.uk/75024/1/Li_et_al-2018-Journal_of_Geophysical_Research__Atmospheres.pdf en eng American Geophysical Union https://centaur.reading.ac.uk/75024/1/Li_et_al-2018-Journal_of_Geophysical_Research__Atmospheres.pdf Li, Q., Ma, M., Wu, X. and Yang, H. <https://centaur.reading.ac.uk/view/creators/90008801.html> orcid:0000-0001-9940-8273 (2018) Snow cover and vegetation-induced decrease in global albedo from 2002 to 2016. Journal of Geophysical Research: Atmospheres, 123 (1). pp. 124-138. ISSN 2169-8996 doi: https://doi.org/10.1002/2017jd027010 <https://doi.org/10.1002/2017jd027010> Article PeerReviewed 2018 ftunivreading https://doi.org/10.1002/2017jd027010 2024-06-11T15:07:33Z Land surface albedo is an essential parameter in regional and global climate models, and it is markedly influenced by land cover change. Variations in the albedo can affect the surface radiation budget and further impact the global climate. In this study, the interannual variation of albedo from 2002 to 2016 was estimated on the global scale using Moderate Resolution Imaging Spectroradiometer (MODIS) datasets. The presence and causes of the albedo changes for each specific region were also explored. From 2002 to 2016, the MODIS-based albedo decreased globally, snow cover declined by 0.970 (percent per pixel), while the seasonally integrated normalized difference vegetation index increased by 0.175. Some obvious increases in the albedo were detected in Central Asia, northeastern China, parts of the boreal forest in Canada, and the temperate steppe in North America. In contrast, noticeable decreases in the albedo were found in the Siberian tundra, Europe, southeastern Australia, and northeastern regions of North America. In the Northern Hemisphere, the greening trend at high latitudes made more contribution to the decline in the albedo. However, the dramatic fluctuation of snow-cover at midlatitudes predominated in the change of albedo. Our analysis can help to understand the roles that vegetation and snow cover play in the variation of albedo on global and regional scales. Article in Journal/Newspaper Tundra CentAUR: Central Archive at the University of Reading Canada Journal of Geophysical Research: Atmospheres 123 1 124 138 |
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CentAUR: Central Archive at the University of Reading |
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English |
description |
Land surface albedo is an essential parameter in regional and global climate models, and it is markedly influenced by land cover change. Variations in the albedo can affect the surface radiation budget and further impact the global climate. In this study, the interannual variation of albedo from 2002 to 2016 was estimated on the global scale using Moderate Resolution Imaging Spectroradiometer (MODIS) datasets. The presence and causes of the albedo changes for each specific region were also explored. From 2002 to 2016, the MODIS-based albedo decreased globally, snow cover declined by 0.970 (percent per pixel), while the seasonally integrated normalized difference vegetation index increased by 0.175. Some obvious increases in the albedo were detected in Central Asia, northeastern China, parts of the boreal forest in Canada, and the temperate steppe in North America. In contrast, noticeable decreases in the albedo were found in the Siberian tundra, Europe, southeastern Australia, and northeastern regions of North America. In the Northern Hemisphere, the greening trend at high latitudes made more contribution to the decline in the albedo. However, the dramatic fluctuation of snow-cover at midlatitudes predominated in the change of albedo. Our analysis can help to understand the roles that vegetation and snow cover play in the variation of albedo on global and regional scales. |
format |
Article in Journal/Newspaper |
author |
Li, Qiuping Ma, Mingguo Wu, Xiaodan Yang, Hong |
spellingShingle |
Li, Qiuping Ma, Mingguo Wu, Xiaodan Yang, Hong Snow cover and vegetation-induced decrease in global albedo from 2002 to 2016 |
author_facet |
Li, Qiuping Ma, Mingguo Wu, Xiaodan Yang, Hong |
author_sort |
Li, Qiuping |
title |
Snow cover and vegetation-induced decrease in global albedo from 2002 to 2016 |
title_short |
Snow cover and vegetation-induced decrease in global albedo from 2002 to 2016 |
title_full |
Snow cover and vegetation-induced decrease in global albedo from 2002 to 2016 |
title_fullStr |
Snow cover and vegetation-induced decrease in global albedo from 2002 to 2016 |
title_full_unstemmed |
Snow cover and vegetation-induced decrease in global albedo from 2002 to 2016 |
title_sort |
snow cover and vegetation-induced decrease in global albedo from 2002 to 2016 |
publisher |
American Geophysical Union |
publishDate |
2018 |
url |
https://centaur.reading.ac.uk/75024/ https://centaur.reading.ac.uk/75024/1/Li_et_al-2018-Journal_of_Geophysical_Research__Atmospheres.pdf |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Tundra |
genre_facet |
Tundra |
op_relation |
https://centaur.reading.ac.uk/75024/1/Li_et_al-2018-Journal_of_Geophysical_Research__Atmospheres.pdf Li, Q., Ma, M., Wu, X. and Yang, H. <https://centaur.reading.ac.uk/view/creators/90008801.html> orcid:0000-0001-9940-8273 (2018) Snow cover and vegetation-induced decrease in global albedo from 2002 to 2016. Journal of Geophysical Research: Atmospheres, 123 (1). pp. 124-138. ISSN 2169-8996 doi: https://doi.org/10.1002/2017jd027010 <https://doi.org/10.1002/2017jd027010> |
op_doi |
https://doi.org/10.1002/2017jd027010 |
container_title |
Journal of Geophysical Research: Atmospheres |
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123 |
container_issue |
1 |
container_start_page |
124 |
op_container_end_page |
138 |
_version_ |
1802650865258987520 |