Pan-Arctic linkages between snow accumulation and growing-season air temperature, soil moisture and vegetation
Arctic field studies have indicated that the air temperature, soil moisture and vegetation at a site influence the quantity of snow accumulated, and that snow accumulation can alter growing-season soil moisture and vegetation. Climate change is predicted to bring about warmer air temperatures, great...
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ftdoajarticles:oai:doaj.org/article:feed74b4a2b240d4828f1e2e8f06df9c 2023-05-15T14:53:08+02:00 Pan-Arctic linkages between snow accumulation and growing-season air temperature, soil moisture and vegetation K. A. Luus Y. Gel J. C. Lin R. E. J. Kelly C. R. Duguay 2013-11-01T00:00:00Z https://doi.org/10.5194/bg-10-7575-2013 https://doaj.org/article/feed74b4a2b240d4828f1e2e8f06df9c EN eng Copernicus Publications http://www.biogeosciences.net/10/7575/2013/bg-10-7575-2013.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 doi:10.5194/bg-10-7575-2013 https://doaj.org/article/feed74b4a2b240d4828f1e2e8f06df9c Biogeosciences, Vol 10, Iss 11, Pp 7575-7597 (2013) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2013 ftdoajarticles https://doi.org/10.5194/bg-10-7575-2013 2022-12-30T21:04:03Z Arctic field studies have indicated that the air temperature, soil moisture and vegetation at a site influence the quantity of snow accumulated, and that snow accumulation can alter growing-season soil moisture and vegetation. Climate change is predicted to bring about warmer air temperatures, greater snow accumulation and northward movements of the shrub and tree lines. Understanding the responses of northern environments to changes in snow and growing-season land surface characteristics requires: (1) insights into the present-day linkages between snow and growing-season land surface characteristics; and (2) the ability to continue to monitor these associations over time across the vast pan-Arctic. The objective of this study was therefore to examine the pan-Arctic (north of 60° N) linkages between two temporally distinct data products created from AMSR-E satellite passive microwave observations: GlobSnow snow water equivalent (SWE), and NTSG growing-season AMSR-E Land Parameters (air temperature, soil moisture and vegetation transmissivity). Due to the complex and interconnected nature of processes determining snow and growing-season land surface characteristics, these associations were analyzed using the modern nonparametric technique of alternating conditional expectations (ACE), as this approach does not impose a predefined analytic form. Findings indicate that regions with lower vegetation transmissivity (more biomass) at the start and end of the growing season tend to accumulate less snow at the start and end of the snow season, possibly due to interception and sublimation. Warmer air temperatures at the start and end of the growing season were associated with diminished snow accumulation at the start and end of the snow season. High latitude sites with warmer mean annual growing-season temperatures tended to accumulate more snow, probably due to the greater availability of water vapor for snow season precipitation at warmer locations. Regions with drier soils preceding snow onset tended to accumulate ... Article in Journal/Newspaper Arctic Climate change Directory of Open Access Journals: DOAJ Articles Arctic Biogeosciences 10 11 7575 7597 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
spellingShingle |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 K. A. Luus Y. Gel J. C. Lin R. E. J. Kelly C. R. Duguay Pan-Arctic linkages between snow accumulation and growing-season air temperature, soil moisture and vegetation |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
Arctic field studies have indicated that the air temperature, soil moisture and vegetation at a site influence the quantity of snow accumulated, and that snow accumulation can alter growing-season soil moisture and vegetation. Climate change is predicted to bring about warmer air temperatures, greater snow accumulation and northward movements of the shrub and tree lines. Understanding the responses of northern environments to changes in snow and growing-season land surface characteristics requires: (1) insights into the present-day linkages between snow and growing-season land surface characteristics; and (2) the ability to continue to monitor these associations over time across the vast pan-Arctic. The objective of this study was therefore to examine the pan-Arctic (north of 60° N) linkages between two temporally distinct data products created from AMSR-E satellite passive microwave observations: GlobSnow snow water equivalent (SWE), and NTSG growing-season AMSR-E Land Parameters (air temperature, soil moisture and vegetation transmissivity). Due to the complex and interconnected nature of processes determining snow and growing-season land surface characteristics, these associations were analyzed using the modern nonparametric technique of alternating conditional expectations (ACE), as this approach does not impose a predefined analytic form. Findings indicate that regions with lower vegetation transmissivity (more biomass) at the start and end of the growing season tend to accumulate less snow at the start and end of the snow season, possibly due to interception and sublimation. Warmer air temperatures at the start and end of the growing season were associated with diminished snow accumulation at the start and end of the snow season. High latitude sites with warmer mean annual growing-season temperatures tended to accumulate more snow, probably due to the greater availability of water vapor for snow season precipitation at warmer locations. Regions with drier soils preceding snow onset tended to accumulate ... |
format |
Article in Journal/Newspaper |
author |
K. A. Luus Y. Gel J. C. Lin R. E. J. Kelly C. R. Duguay |
author_facet |
K. A. Luus Y. Gel J. C. Lin R. E. J. Kelly C. R. Duguay |
author_sort |
K. A. Luus |
title |
Pan-Arctic linkages between snow accumulation and growing-season air temperature, soil moisture and vegetation |
title_short |
Pan-Arctic linkages between snow accumulation and growing-season air temperature, soil moisture and vegetation |
title_full |
Pan-Arctic linkages between snow accumulation and growing-season air temperature, soil moisture and vegetation |
title_fullStr |
Pan-Arctic linkages between snow accumulation and growing-season air temperature, soil moisture and vegetation |
title_full_unstemmed |
Pan-Arctic linkages between snow accumulation and growing-season air temperature, soil moisture and vegetation |
title_sort |
pan-arctic linkages between snow accumulation and growing-season air temperature, soil moisture and vegetation |
publisher |
Copernicus Publications |
publishDate |
2013 |
url |
https://doi.org/10.5194/bg-10-7575-2013 https://doaj.org/article/feed74b4a2b240d4828f1e2e8f06df9c |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_source |
Biogeosciences, Vol 10, Iss 11, Pp 7575-7597 (2013) |
op_relation |
http://www.biogeosciences.net/10/7575/2013/bg-10-7575-2013.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 doi:10.5194/bg-10-7575-2013 https://doaj.org/article/feed74b4a2b240d4828f1e2e8f06df9c |
op_doi |
https://doi.org/10.5194/bg-10-7575-2013 |
container_title |
Biogeosciences |
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10 |
container_issue |
11 |
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7575 |
op_container_end_page |
7597 |
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