Basin-scale heterogeneity in Antarctic precipitation and its impact on surface mass variability
Annually averaged precipitation in the form of snow, the dominant term of the Antarctic Ice Sheet surface mass balance, displays large spatial and temporal variability. Here we present an analysis of spatial patterns of regional Antarctic precipitation variability and their impact on integrated Anta...
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ftdoajarticles:oai:doaj.org/article:010d4849662440a28a1d0e602fdcf491 2023-05-15T14:02:57+02:00 Basin-scale heterogeneity in Antarctic precipitation and its impact on surface mass variability J. Fyke J. T. M. Lenaerts H. Wang 2017-11-01T00:00:00Z https://doi.org/10.5194/tc-11-2595-2017 https://doaj.org/article/010d4849662440a28a1d0e602fdcf491 EN eng Copernicus Publications https://www.the-cryosphere.net/11/2595/2017/tc-11-2595-2017.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-11-2595-2017 1994-0416 1994-0424 https://doaj.org/article/010d4849662440a28a1d0e602fdcf491 The Cryosphere, Vol 11, Pp 2595-2609 (2017) Environmental sciences GE1-350 Geology QE1-996.5 article 2017 ftdoajarticles https://doi.org/10.5194/tc-11-2595-2017 2022-12-31T10:15:32Z Annually averaged precipitation in the form of snow, the dominant term of the Antarctic Ice Sheet surface mass balance, displays large spatial and temporal variability. Here we present an analysis of spatial patterns of regional Antarctic precipitation variability and their impact on integrated Antarctic surface mass balance variability simulated as part of a preindustrial 1800-year global, fully coupled Community Earth System Model simulation. Correlation and composite analyses based on this output allow for a robust exploration of Antarctic precipitation variability. We identify statistically significant relationships between precipitation patterns across Antarctica that are corroborated by climate reanalyses, regional modeling and ice core records. These patterns are driven by variability in large-scale atmospheric moisture transport, which itself is characterized by decadal- to centennial-scale oscillations around the long-term mean. We suggest that this heterogeneity in Antarctic precipitation variability has a dampening effect on overall Antarctic surface mass balance variability, with implications for regulation of Antarctic-sourced sea level variability, detection of an emergent anthropogenic signal in Antarctic mass trends and identification of Antarctic mass loss accelerations. Article in Journal/Newspaper Antarc* Antarctic Antarctica ice core Ice Sheet The Cryosphere Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic The Cryosphere 11 6 2595 2609 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 J. Fyke J. T. M. Lenaerts H. Wang Basin-scale heterogeneity in Antarctic precipitation and its impact on surface mass variability |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
Annually averaged precipitation in the form of snow, the dominant term of the Antarctic Ice Sheet surface mass balance, displays large spatial and temporal variability. Here we present an analysis of spatial patterns of regional Antarctic precipitation variability and their impact on integrated Antarctic surface mass balance variability simulated as part of a preindustrial 1800-year global, fully coupled Community Earth System Model simulation. Correlation and composite analyses based on this output allow for a robust exploration of Antarctic precipitation variability. We identify statistically significant relationships between precipitation patterns across Antarctica that are corroborated by climate reanalyses, regional modeling and ice core records. These patterns are driven by variability in large-scale atmospheric moisture transport, which itself is characterized by decadal- to centennial-scale oscillations around the long-term mean. We suggest that this heterogeneity in Antarctic precipitation variability has a dampening effect on overall Antarctic surface mass balance variability, with implications for regulation of Antarctic-sourced sea level variability, detection of an emergent anthropogenic signal in Antarctic mass trends and identification of Antarctic mass loss accelerations. |
format |
Article in Journal/Newspaper |
author |
J. Fyke J. T. M. Lenaerts H. Wang |
author_facet |
J. Fyke J. T. M. Lenaerts H. Wang |
author_sort |
J. Fyke |
title |
Basin-scale heterogeneity in Antarctic precipitation and its impact on surface mass variability |
title_short |
Basin-scale heterogeneity in Antarctic precipitation and its impact on surface mass variability |
title_full |
Basin-scale heterogeneity in Antarctic precipitation and its impact on surface mass variability |
title_fullStr |
Basin-scale heterogeneity in Antarctic precipitation and its impact on surface mass variability |
title_full_unstemmed |
Basin-scale heterogeneity in Antarctic precipitation and its impact on surface mass variability |
title_sort |
basin-scale heterogeneity in antarctic precipitation and its impact on surface mass variability |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/tc-11-2595-2017 https://doaj.org/article/010d4849662440a28a1d0e602fdcf491 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica ice core Ice Sheet The Cryosphere |
genre_facet |
Antarc* Antarctic Antarctica ice core Ice Sheet The Cryosphere |
op_source |
The Cryosphere, Vol 11, Pp 2595-2609 (2017) |
op_relation |
https://www.the-cryosphere.net/11/2595/2017/tc-11-2595-2017.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-11-2595-2017 1994-0416 1994-0424 https://doaj.org/article/010d4849662440a28a1d0e602fdcf491 |
op_doi |
https://doi.org/10.5194/tc-11-2595-2017 |
container_title |
The Cryosphere |
container_volume |
11 |
container_issue |
6 |
container_start_page |
2595 |
op_container_end_page |
2609 |
_version_ |
1766273400344412160 |