High-latitude forcing of regional aridification along the subtropical west coast of South America
been declining over the last 130 years. This is of concern in a region where precipitation is already low and which hosts considerable economic activity and a large population. Interannual variability of precipitation is primarily controlled by ENSO, but the reasons for the increasing aridity have r...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.594.933 2023-05-15T13:23:45+02:00 High-latitude forcing of regional aridification along the subtropical west coast of South America Mathias Vuille Juan-pablo Milana The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.594.933 http://www.atmos.albany.edu/facstaff/mathias/pubs/Vuille_Milana_2007.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.594.933 http://www.atmos.albany.edu/facstaff/mathias/pubs/Vuille_Milana_2007.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.atmos.albany.edu/facstaff/mathias/pubs/Vuille_Milana_2007.pdf text ftciteseerx 2016-01-08T13:41:39Z been declining over the last 130 years. This is of concern in a region where precipitation is already low and which hosts considerable economic activity and a large population. Interannual variability of precipitation is primarily controlled by ENSO, but the reasons for the increasing aridity have remained elusive. Here we show that the negative trend in precipitation is not related to tropical Pacific forcing and that recent El Niño activity instead helped to alleviate the worst drought conditions. Based on data from 1979–2004 we further show that sea surface temperatures and sea-ice concentration in the Amundsen Sea and associated blocking activity in the Bellingshausen Sea are related to winter precipitation in subtropical Chile, independently of ENSO. High latitude forcing from the Amundsen Sea region may provide an alternative explanation for the observed secular drying trend. Citation: Vuille, M., and J.-P. Milana (2007), High-latitude forcing of regional aridification along the subtropical west Text Amundsen Sea Bellingshausen Sea Sea ice Unknown Amundsen Sea Bellingshausen Sea Pacific |
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ftciteseerx |
language |
English |
description |
been declining over the last 130 years. This is of concern in a region where precipitation is already low and which hosts considerable economic activity and a large population. Interannual variability of precipitation is primarily controlled by ENSO, but the reasons for the increasing aridity have remained elusive. Here we show that the negative trend in precipitation is not related to tropical Pacific forcing and that recent El Niño activity instead helped to alleviate the worst drought conditions. Based on data from 1979–2004 we further show that sea surface temperatures and sea-ice concentration in the Amundsen Sea and associated blocking activity in the Bellingshausen Sea are related to winter precipitation in subtropical Chile, independently of ENSO. High latitude forcing from the Amundsen Sea region may provide an alternative explanation for the observed secular drying trend. Citation: Vuille, M., and J.-P. Milana (2007), High-latitude forcing of regional aridification along the subtropical west |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Mathias Vuille Juan-pablo Milana |
spellingShingle |
Mathias Vuille Juan-pablo Milana High-latitude forcing of regional aridification along the subtropical west coast of South America |
author_facet |
Mathias Vuille Juan-pablo Milana |
author_sort |
Mathias Vuille |
title |
High-latitude forcing of regional aridification along the subtropical west coast of South America |
title_short |
High-latitude forcing of regional aridification along the subtropical west coast of South America |
title_full |
High-latitude forcing of regional aridification along the subtropical west coast of South America |
title_fullStr |
High-latitude forcing of regional aridification along the subtropical west coast of South America |
title_full_unstemmed |
High-latitude forcing of regional aridification along the subtropical west coast of South America |
title_sort |
high-latitude forcing of regional aridification along the subtropical west coast of south america |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.594.933 http://www.atmos.albany.edu/facstaff/mathias/pubs/Vuille_Milana_2007.pdf |
geographic |
Amundsen Sea Bellingshausen Sea Pacific |
geographic_facet |
Amundsen Sea Bellingshausen Sea Pacific |
genre |
Amundsen Sea Bellingshausen Sea Sea ice |
genre_facet |
Amundsen Sea Bellingshausen Sea Sea ice |
op_source |
http://www.atmos.albany.edu/facstaff/mathias/pubs/Vuille_Milana_2007.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.594.933 http://www.atmos.albany.edu/facstaff/mathias/pubs/Vuille_Milana_2007.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766374737769922560 |