Precipitation variability and its relation to climate anomalies in the Bolivian Altiplano
Precipitation variability over the Bolivian Altiplano is strongly affected by local climate and temporal variation of large-scale atmospheric flow. Precipitation is the main water source for drinking water and agricultural production. For this reason, a better understanding of precipitation variabil...
Published in: | International Journal of Climatology |
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Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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John Wiley & Sons Inc.
2019
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Online Access: | https://lup.lub.lu.se/record/8b545c2c-a492-4058-80bf-afec94a13ff2 https://doi.org/10.1002/joc.5937 |
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ftulundlup:oai:lup.lub.lu.se:8b545c2c-a492-4058-80bf-afec94a13ff2 2023-09-26T15:10:45+02:00 Precipitation variability and its relation to climate anomalies in the Bolivian Altiplano Canedo-Rosso, Claudia Uvo, Cintia B. Berndtsson, Ronny 2019 https://lup.lub.lu.se/record/8b545c2c-a492-4058-80bf-afec94a13ff2 https://doi.org/10.1002/joc.5937 eng eng John Wiley & Sons Inc. https://lup.lub.lu.se/record/8b545c2c-a492-4058-80bf-afec94a13ff2 http://dx.doi.org/10.1002/joc.5937 scopus:85058094111 International Journal of Climatology; (2019) ISSN: 0899-8418 Climate Research AMM AMO austral summer precipitation climate phenomena ENSO multivariate analysis NAO PDO wavelet analysis contributiontojournal/article info:eu-repo/semantics/article text 2019 ftulundlup https://doi.org/10.1002/joc.5937 2023-08-30T22:28:49Z Precipitation variability over the Bolivian Altiplano is strongly affected by local climate and temporal variation of large-scale atmospheric flow. Precipitation is the main water source for drinking water and agricultural production. For this reason, a better understanding of precipitation variability and its relation with climate phenomena can provide important information for forecasting of droughts and floods, disaster risk reduction, and improvement of water management. We present results of an analysis of the austral summer precipitation variability at six locations in the Bolivian Altiplano and connections to climate variability. For this purpose, the variability of the summer precipitation was related to El Niño–Southern Oscillation (ENSO), Pacific Decadal Oscillation (PDO), North Atlantic Oscillation (NAO), Antarctic Meridional Mode (AMM), and Atlantic Multidecadal Oscillation (AMO). A statistically significant correlation between climate indices and precipitation was found in various spectral frequencies and power. The variability of the summer precipitation was associated with the climate indices using a band-pass filter, representing the signal at a particular period of time. For the ENSO, band-pass filtering was applied for Niño3.4 and Niño3 at band ~2–7 years, for NAO band ~5–8 years, and for AMM band ~10–13 years. The variability of summer precipitation was related to all studied climate modes by negative relationships. The physical explanation for this is first the dry air transported from the Pacific Ocean to the Altiplano during El Niño events. Second, NAO and ENSO are dynamically linked through teleconnections. Third, the intertropical convergence zone (ITCZ) shifts are northwards during the warm phases of AMM. These physical mechanisms lead to a reduced austral summer precipitation associated with positive phases of the ENSO, NAO, and AMM. The results can be used to better forecast precipitation in the Bolivian Altiplano and provide support for the development of policies to improve climate ... Article in Journal/Newspaper Antarc* Antarctic North Atlantic North Atlantic oscillation Lund University Publications (LUP) Antarctic Austral Pacific The Altiplano ENVELOPE(163.917,163.917,-78.133,-78.133) International Journal of Climatology 39 4 2096 2107 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Climate Research AMM AMO austral summer precipitation climate phenomena ENSO multivariate analysis NAO PDO wavelet analysis |
spellingShingle |
Climate Research AMM AMO austral summer precipitation climate phenomena ENSO multivariate analysis NAO PDO wavelet analysis Canedo-Rosso, Claudia Uvo, Cintia B. Berndtsson, Ronny Precipitation variability and its relation to climate anomalies in the Bolivian Altiplano |
topic_facet |
Climate Research AMM AMO austral summer precipitation climate phenomena ENSO multivariate analysis NAO PDO wavelet analysis |
description |
Precipitation variability over the Bolivian Altiplano is strongly affected by local climate and temporal variation of large-scale atmospheric flow. Precipitation is the main water source for drinking water and agricultural production. For this reason, a better understanding of precipitation variability and its relation with climate phenomena can provide important information for forecasting of droughts and floods, disaster risk reduction, and improvement of water management. We present results of an analysis of the austral summer precipitation variability at six locations in the Bolivian Altiplano and connections to climate variability. For this purpose, the variability of the summer precipitation was related to El Niño–Southern Oscillation (ENSO), Pacific Decadal Oscillation (PDO), North Atlantic Oscillation (NAO), Antarctic Meridional Mode (AMM), and Atlantic Multidecadal Oscillation (AMO). A statistically significant correlation between climate indices and precipitation was found in various spectral frequencies and power. The variability of the summer precipitation was associated with the climate indices using a band-pass filter, representing the signal at a particular period of time. For the ENSO, band-pass filtering was applied for Niño3.4 and Niño3 at band ~2–7 years, for NAO band ~5–8 years, and for AMM band ~10–13 years. The variability of summer precipitation was related to all studied climate modes by negative relationships. The physical explanation for this is first the dry air transported from the Pacific Ocean to the Altiplano during El Niño events. Second, NAO and ENSO are dynamically linked through teleconnections. Third, the intertropical convergence zone (ITCZ) shifts are northwards during the warm phases of AMM. These physical mechanisms lead to a reduced austral summer precipitation associated with positive phases of the ENSO, NAO, and AMM. The results can be used to better forecast precipitation in the Bolivian Altiplano and provide support for the development of policies to improve climate ... |
format |
Article in Journal/Newspaper |
author |
Canedo-Rosso, Claudia Uvo, Cintia B. Berndtsson, Ronny |
author_facet |
Canedo-Rosso, Claudia Uvo, Cintia B. Berndtsson, Ronny |
author_sort |
Canedo-Rosso, Claudia |
title |
Precipitation variability and its relation to climate anomalies in the Bolivian Altiplano |
title_short |
Precipitation variability and its relation to climate anomalies in the Bolivian Altiplano |
title_full |
Precipitation variability and its relation to climate anomalies in the Bolivian Altiplano |
title_fullStr |
Precipitation variability and its relation to climate anomalies in the Bolivian Altiplano |
title_full_unstemmed |
Precipitation variability and its relation to climate anomalies in the Bolivian Altiplano |
title_sort |
precipitation variability and its relation to climate anomalies in the bolivian altiplano |
publisher |
John Wiley & Sons Inc. |
publishDate |
2019 |
url |
https://lup.lub.lu.se/record/8b545c2c-a492-4058-80bf-afec94a13ff2 https://doi.org/10.1002/joc.5937 |
long_lat |
ENVELOPE(163.917,163.917,-78.133,-78.133) |
geographic |
Antarctic Austral Pacific The Altiplano |
geographic_facet |
Antarctic Austral Pacific The Altiplano |
genre |
Antarc* Antarctic North Atlantic North Atlantic oscillation |
genre_facet |
Antarc* Antarctic North Atlantic North Atlantic oscillation |
op_source |
International Journal of Climatology; (2019) ISSN: 0899-8418 |
op_relation |
https://lup.lub.lu.se/record/8b545c2c-a492-4058-80bf-afec94a13ff2 http://dx.doi.org/10.1002/joc.5937 scopus:85058094111 |
op_doi |
https://doi.org/10.1002/joc.5937 |
container_title |
International Journal of Climatology |
container_volume |
39 |
container_issue |
4 |
container_start_page |
2096 |
op_container_end_page |
2107 |
_version_ |
1778147841468792832 |