The signature of Southern Hemisphere atmospheric circulation patterns in Antarctic precipitation
We provide the first comprehensive analysis of the relationships between large-scale patterns of Southern Hemisphere climate variability and the detailed structure of Antarctic precipitation. We examine linkages between the high spatial resolution precipitation from a regional atmospheric model and...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Geophysical Union
2017
|
Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/517025/ https://nora.nerc.ac.uk/id/eprint/517025/1/Marshall_et_al-2017-Geophysical_Research_Letters.pdf https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017GL075998 |
id |
ftnerc:oai:nora.nerc.ac.uk:517025 |
---|---|
record_format |
openpolar |
spelling |
ftnerc:oai:nora.nerc.ac.uk:517025 2023-05-15T13:49:34+02:00 The signature of Southern Hemisphere atmospheric circulation patterns in Antarctic precipitation Marshall, Gareth J. Thompson, David W.J. van den Broeke, Michiel R. 2017-11-28 text http://nora.nerc.ac.uk/id/eprint/517025/ https://nora.nerc.ac.uk/id/eprint/517025/1/Marshall_et_al-2017-Geophysical_Research_Letters.pdf https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017GL075998 en eng American Geophysical Union https://nora.nerc.ac.uk/id/eprint/517025/1/Marshall_et_al-2017-Geophysical_Research_Letters.pdf Marshall, Gareth J. orcid:0000-0001-8887-7314 Thompson, David W.J.; van den Broeke, Michiel R. 2017 The signature of Southern Hemisphere atmospheric circulation patterns in Antarctic precipitation. Geophysical Research Letters, 44 (22). 11,580-11,589. https://doi.org/10.1002/2017GL075998 <https://doi.org/10.1002/2017GL075998> cc_by_4 CC-BY Meteorology and Climatology Publication - Article PeerReviewed 2017 ftnerc https://doi.org/10.1002/2017GL075998 2023-02-04T19:44:54Z We provide the first comprehensive analysis of the relationships between large-scale patterns of Southern Hemisphere climate variability and the detailed structure of Antarctic precipitation. We examine linkages between the high spatial resolution precipitation from a regional atmospheric model and four modes of large-scale Southern Hemisphere climate variability: the southern baroclinic annular mode (BAM), the southern annular mode (SAM), and the two Pacific-South American (PSA) teleconnection patterns. Variations in all four modes influence the spatial patterns of precipitation over Antarctica, consistent with their signatures in high-latitude meridional moisture fluxes. They impact not only the mean but also the incidence of extreme precipitation events. Current coupled-climate models are able to reproduce all four patterns of atmospheric variability, but struggle to correctly replicate their regional impacts on Antarctic climate. Thus, linking these patterns directly to Antarctic precipitation variability may allow a better estimate of future changes in precipitation than using model output alone. Article in Journal/Newspaper Antarc* Antarctic Antarctica Natural Environment Research Council: NERC Open Research Archive Antarctic Pacific Geophysical Research Letters 44 22 11,580 11,589 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
topic |
Meteorology and Climatology |
spellingShingle |
Meteorology and Climatology Marshall, Gareth J. Thompson, David W.J. van den Broeke, Michiel R. The signature of Southern Hemisphere atmospheric circulation patterns in Antarctic precipitation |
topic_facet |
Meteorology and Climatology |
description |
We provide the first comprehensive analysis of the relationships between large-scale patterns of Southern Hemisphere climate variability and the detailed structure of Antarctic precipitation. We examine linkages between the high spatial resolution precipitation from a regional atmospheric model and four modes of large-scale Southern Hemisphere climate variability: the southern baroclinic annular mode (BAM), the southern annular mode (SAM), and the two Pacific-South American (PSA) teleconnection patterns. Variations in all four modes influence the spatial patterns of precipitation over Antarctica, consistent with their signatures in high-latitude meridional moisture fluxes. They impact not only the mean but also the incidence of extreme precipitation events. Current coupled-climate models are able to reproduce all four patterns of atmospheric variability, but struggle to correctly replicate their regional impacts on Antarctic climate. Thus, linking these patterns directly to Antarctic precipitation variability may allow a better estimate of future changes in precipitation than using model output alone. |
format |
Article in Journal/Newspaper |
author |
Marshall, Gareth J. Thompson, David W.J. van den Broeke, Michiel R. |
author_facet |
Marshall, Gareth J. Thompson, David W.J. van den Broeke, Michiel R. |
author_sort |
Marshall, Gareth J. |
title |
The signature of Southern Hemisphere atmospheric circulation patterns in Antarctic precipitation |
title_short |
The signature of Southern Hemisphere atmospheric circulation patterns in Antarctic precipitation |
title_full |
The signature of Southern Hemisphere atmospheric circulation patterns in Antarctic precipitation |
title_fullStr |
The signature of Southern Hemisphere atmospheric circulation patterns in Antarctic precipitation |
title_full_unstemmed |
The signature of Southern Hemisphere atmospheric circulation patterns in Antarctic precipitation |
title_sort |
signature of southern hemisphere atmospheric circulation patterns in antarctic precipitation |
publisher |
American Geophysical Union |
publishDate |
2017 |
url |
http://nora.nerc.ac.uk/id/eprint/517025/ https://nora.nerc.ac.uk/id/eprint/517025/1/Marshall_et_al-2017-Geophysical_Research_Letters.pdf https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017GL075998 |
geographic |
Antarctic Pacific |
geographic_facet |
Antarctic Pacific |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
https://nora.nerc.ac.uk/id/eprint/517025/1/Marshall_et_al-2017-Geophysical_Research_Letters.pdf Marshall, Gareth J. orcid:0000-0001-8887-7314 Thompson, David W.J.; van den Broeke, Michiel R. 2017 The signature of Southern Hemisphere atmospheric circulation patterns in Antarctic precipitation. Geophysical Research Letters, 44 (22). 11,580-11,589. https://doi.org/10.1002/2017GL075998 <https://doi.org/10.1002/2017GL075998> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/2017GL075998 |
container_title |
Geophysical Research Letters |
container_volume |
44 |
container_issue |
22 |
container_start_page |
11,580 |
op_container_end_page |
11,589 |
_version_ |
1766251660894535680 |