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Disentangling the coupling between sea ice and tundra productivity in Svalbard

The rapid decline in Arctic sea ice poses urgent questions concerning its ecological effects, such as on tundra terrestrial productivity. However, reported sea ice/terrestrial productivity linkages have seldom been constrained, and the mechanism governing them remains elusive, with a diversity of sp...

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Autores principales: Macias-Fauria, Marc, Karlsen, Stein Rune, Forbes, Bruce C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5561272/
https://www.ncbi.nlm.nih.gov/pubmed/28819173
http://dx.doi.org/10.1038/s41598-017-06218-8
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author Macias-Fauria, Marc
Karlsen, Stein Rune
Forbes, Bruce C.
author_facet Macias-Fauria, Marc
Karlsen, Stein Rune
Forbes, Bruce C.
author_sort Macias-Fauria, Marc
collection PubMed
description The rapid decline in Arctic sea ice poses urgent questions concerning its ecological effects, such as on tundra terrestrial productivity. However, reported sea ice/terrestrial productivity linkages have seldom been constrained, and the mechanism governing them remains elusive, with a diversity of spatial scales and metrics proposed, at times in contradiction to each other. In this study, we use spatially explicit remotely sensed sea ice concentration and high-resolution terrestrial productivity estimates (Normalised Difference Vegetation Index, NDVI) across the Svalbard Archipelago to describe local/sub-regional and large-scale components of sea ice/terrestrial productivity coupling. Whereas the local/sub-regional component is attributed to sea breeze (cold air advection from ice-covered ocean onto adjacent land during the growing season), the large-scale component might reflect co-variability of sea ice and tundra productivity due to a common forcing, such as large-scale atmospheric circulation (North Atlantic Oscillation, NAO). Our study clarifies the range of mechanisms in sea ice/terrestrial productivity coupling, allowing the generation of testable hypotheses about its past, present, and future dynamics across the Arctic.
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spelling pubmed-55612722017-08-21 Disentangling the coupling between sea ice and tundra productivity in Svalbard Macias-Fauria, Marc Karlsen, Stein Rune Forbes, Bruce C. Sci Rep Article The rapid decline in Arctic sea ice poses urgent questions concerning its ecological effects, such as on tundra terrestrial productivity. However, reported sea ice/terrestrial productivity linkages have seldom been constrained, and the mechanism governing them remains elusive, with a diversity of spatial scales and metrics proposed, at times in contradiction to each other. In this study, we use spatially explicit remotely sensed sea ice concentration and high-resolution terrestrial productivity estimates (Normalised Difference Vegetation Index, NDVI) across the Svalbard Archipelago to describe local/sub-regional and large-scale components of sea ice/terrestrial productivity coupling. Whereas the local/sub-regional component is attributed to sea breeze (cold air advection from ice-covered ocean onto adjacent land during the growing season), the large-scale component might reflect co-variability of sea ice and tundra productivity due to a common forcing, such as large-scale atmospheric circulation (North Atlantic Oscillation, NAO). Our study clarifies the range of mechanisms in sea ice/terrestrial productivity coupling, allowing the generation of testable hypotheses about its past, present, and future dynamics across the Arctic. Nature Publishing Group UK 2017-08-17 /pmc/articles/PMC5561272/ /pubmed/28819173 http://dx.doi.org/10.1038/s41598-017-06218-8 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Macias-Fauria, Marc
Karlsen, Stein Rune
Forbes, Bruce C.
Disentangling the coupling between sea ice and tundra productivity in Svalbard
title Disentangling the coupling between sea ice and tundra productivity in Svalbard
title_full Disentangling the coupling between sea ice and tundra productivity in Svalbard
title_fullStr Disentangling the coupling between sea ice and tundra productivity in Svalbard
title_full_unstemmed Disentangling the coupling between sea ice and tundra productivity in Svalbard
title_short Disentangling the coupling between sea ice and tundra productivity in Svalbard
title_sort disentangling the coupling between sea ice and tundra productivity in svalbard
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5561272/
https://www.ncbi.nlm.nih.gov/pubmed/28819173
http://dx.doi.org/10.1038/s41598-017-06218-8
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