Drivers of solar radiation variability in the McMurdo Dry Valleys, Antarctica
Annually averaged solar radiation in the McMurdo Dry Valleys, Antarctica has varied by over 20 W m−2 during the past three decades; however, the drivers of this variability are unknown. Because small differences in radiation are important to water availability and ecosystem functioning in polar dese...
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ftpubmed:oai:pubmedcentral.nih.gov:5864877 2023-05-15T13:40:17+02:00 Drivers of solar radiation variability in the McMurdo Dry Valleys, Antarctica Obryk, M. K. Fountain, A. G. Doran, P. T. Lyons, W. B. Eastman, R. 2018-03-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5864877/ http://www.ncbi.nlm.nih.gov/pubmed/29568040 https://doi.org/10.1038/s41598-018-23390-7 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5864877/ http://www.ncbi.nlm.nih.gov/pubmed/29568040 http://dx.doi.org/10.1038/s41598-018-23390-7 © The Author(s) 2018 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/. CC-BY Article Text 2018 ftpubmed https://doi.org/10.1038/s41598-018-23390-7 2018-04-01T00:20:51Z Annually averaged solar radiation in the McMurdo Dry Valleys, Antarctica has varied by over 20 W m−2 during the past three decades; however, the drivers of this variability are unknown. Because small differences in radiation are important to water availability and ecosystem functioning in polar deserts, determining the causes are important to predictions of future desert processes. We examine the potential drivers of solar variability and systematically eliminate all but stratospheric sulfur dioxide. We argue that increases in stratospheric sulfur dioxide increase stratospheric aerosol optical depth and decrease solar intensity. Because of the polar location of the McMurdo Dry Valleys (77–78°S) and relatively long solar ray path through the stratosphere, terrestrial solar intensity is sensitive to small differences in stratospheric transmissivity. Important sources of sulfur dioxide include natural (wildfires and volcanic eruptions) and anthropogenic emission. Text Antarc* Antarctica McMurdo Dry Valleys PubMed Central (PMC) McMurdo Dry Valleys Scientific Reports 8 1 |
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Article Obryk, M. K. Fountain, A. G. Doran, P. T. Lyons, W. B. Eastman, R. Drivers of solar radiation variability in the McMurdo Dry Valleys, Antarctica |
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Article |
description |
Annually averaged solar radiation in the McMurdo Dry Valleys, Antarctica has varied by over 20 W m−2 during the past three decades; however, the drivers of this variability are unknown. Because small differences in radiation are important to water availability and ecosystem functioning in polar deserts, determining the causes are important to predictions of future desert processes. We examine the potential drivers of solar variability and systematically eliminate all but stratospheric sulfur dioxide. We argue that increases in stratospheric sulfur dioxide increase stratospheric aerosol optical depth and decrease solar intensity. Because of the polar location of the McMurdo Dry Valleys (77–78°S) and relatively long solar ray path through the stratosphere, terrestrial solar intensity is sensitive to small differences in stratospheric transmissivity. Important sources of sulfur dioxide include natural (wildfires and volcanic eruptions) and anthropogenic emission. |
format |
Text |
author |
Obryk, M. K. Fountain, A. G. Doran, P. T. Lyons, W. B. Eastman, R. |
author_facet |
Obryk, M. K. Fountain, A. G. Doran, P. T. Lyons, W. B. Eastman, R. |
author_sort |
Obryk, M. K. |
title |
Drivers of solar radiation variability in the McMurdo Dry Valleys, Antarctica |
title_short |
Drivers of solar radiation variability in the McMurdo Dry Valleys, Antarctica |
title_full |
Drivers of solar radiation variability in the McMurdo Dry Valleys, Antarctica |
title_fullStr |
Drivers of solar radiation variability in the McMurdo Dry Valleys, Antarctica |
title_full_unstemmed |
Drivers of solar radiation variability in the McMurdo Dry Valleys, Antarctica |
title_sort |
drivers of solar radiation variability in the mcmurdo dry valleys, antarctica |
publisher |
Nature Publishing Group UK |
publishDate |
2018 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5864877/ http://www.ncbi.nlm.nih.gov/pubmed/29568040 https://doi.org/10.1038/s41598-018-23390-7 |
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McMurdo Dry Valleys |
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McMurdo Dry Valleys |
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Antarc* Antarctica McMurdo Dry Valleys |
genre_facet |
Antarc* Antarctica McMurdo Dry Valleys |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5864877/ http://www.ncbi.nlm.nih.gov/pubmed/29568040 http://dx.doi.org/10.1038/s41598-018-23390-7 |
op_rights |
© The Author(s) 2018 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/. |
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CC-BY |
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https://doi.org/10.1038/s41598-018-23390-7 |
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Scientific Reports |
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8 |
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1 |
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