Climate variability and extreme drought in the upper Solimões River (western Amazon Basin): understanding the exceptional 2010 drought
This work provides an initial overview of climate features and their related hydrological impacts during the recent extreme droughts (1995, 1998, 2005 and 2010) in the upper Solimões River (western Amazon), using comprehensive in situ discharge and rainfall datasets. The droughts are generally assoc...
Published in: | Geophysical Research Letters |
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Online Access: | https://hdl.handle.net/20.500.12816/3049 https://doi.org/10.1029/2011GL047862 |
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ftinstgpperu:oai:repositorio.igp.gob.pe:20.500.12816/3049 2023-07-30T04:05:32+02:00 Climate variability and extreme drought in the upper Solimões River (western Amazon Basin): understanding the exceptional 2010 drought Espinoza, Jhan Carlo Ronchail, Josyane Guyot, Jean Loup Junquas, Clémentine Vauchel, Philippe Lavado, Waldo Drapeau, Guillaume Pombosa, Rodrigo Río Solimões Amazonas 2011-07 application/pdf https://hdl.handle.net/20.500.12816/3049 https://doi.org/10.1029/2011GL047862 eng eng American Geophysical Union (AGU) urn:issn:0094-8276 Espinoza, J. C., Ronchail, J., Guyot, J. L., Junquas, C., Vauchel, P., Lavado, W., . Pombosa, R. (2011). Climate variability and extreme drought in the upper Solimões River (western Amazon Basin): understanding the exceptional 2010 drought.==$Geophysical Research Letters, 38$==(13), L13406. https://doi.org/10.1029/2011GL047862 index-oti2018 http://hdl.handle.net/20.500.12816/3049 Geophysical Research Letters https://doi.org/10.1029/2011GL047862 info:eu-repo/semantics/restrictedAccess 2010 drought Amazon Basin Andes Atlantic SST Peru Solimões River http://purl.org/pe-repo/ocde/ford#1.05.00 http://purl.org/pe-repo/ocde/ford#1.05.09 http://purl.org/pe-repo/ocde/ford#1.05.11 info:eu-repo/semantics/article 2011 ftinstgpperu https://doi.org/20.500.12816/304910.1029/2011GL047862 2023-07-17T16:50:52Z This work provides an initial overview of climate features and their related hydrological impacts during the recent extreme droughts (1995, 1998, 2005 and 2010) in the upper Solimões River (western Amazon), using comprehensive in situ discharge and rainfall datasets. The droughts are generally associated with positive SST anomalies in the tropical North Atlantic and weak trade winds and water vapor transport toward the upper Solimões, which, in association with increased subsidence over central and southern Amazon, explain the lack of rainfall and very low discharge values. But in 1998, toward the end of the 1997–98 El Niño event, the drought is more likely related to an anomalous divergence of water vapor in the western Amazon that is characteristic of a warm event in the Pacific. During the austral spring and winter of 2010, the most severe drought since the seventies has been registered in the upper Solimões. Its intensity and its length, when compared to the 2005 drought, can be explained by the addition of an El Niño in austral summer and a very warm episode in the Atlantic in boreal spring and summer. As in 2005, the lack of water in 2010 was more important in the southern tropical tributaries of the upper Solimões than in the northern ones. Por pares Article in Journal/Newspaper North Atlantic Repositorio Geofísico Naciona del Perú Austral Pacific Geophysical Research Letters 38 13 n/a n/a |
institution |
Open Polar |
collection |
Repositorio Geofísico Naciona del Perú |
op_collection_id |
ftinstgpperu |
language |
English |
topic |
2010 drought Amazon Basin Andes Atlantic SST Peru Solimões River http://purl.org/pe-repo/ocde/ford#1.05.00 http://purl.org/pe-repo/ocde/ford#1.05.09 http://purl.org/pe-repo/ocde/ford#1.05.11 |
spellingShingle |
2010 drought Amazon Basin Andes Atlantic SST Peru Solimões River http://purl.org/pe-repo/ocde/ford#1.05.00 http://purl.org/pe-repo/ocde/ford#1.05.09 http://purl.org/pe-repo/ocde/ford#1.05.11 Espinoza, Jhan Carlo Ronchail, Josyane Guyot, Jean Loup Junquas, Clémentine Vauchel, Philippe Lavado, Waldo Drapeau, Guillaume Pombosa, Rodrigo Climate variability and extreme drought in the upper Solimões River (western Amazon Basin): understanding the exceptional 2010 drought |
topic_facet |
2010 drought Amazon Basin Andes Atlantic SST Peru Solimões River http://purl.org/pe-repo/ocde/ford#1.05.00 http://purl.org/pe-repo/ocde/ford#1.05.09 http://purl.org/pe-repo/ocde/ford#1.05.11 |
description |
This work provides an initial overview of climate features and their related hydrological impacts during the recent extreme droughts (1995, 1998, 2005 and 2010) in the upper Solimões River (western Amazon), using comprehensive in situ discharge and rainfall datasets. The droughts are generally associated with positive SST anomalies in the tropical North Atlantic and weak trade winds and water vapor transport toward the upper Solimões, which, in association with increased subsidence over central and southern Amazon, explain the lack of rainfall and very low discharge values. But in 1998, toward the end of the 1997–98 El Niño event, the drought is more likely related to an anomalous divergence of water vapor in the western Amazon that is characteristic of a warm event in the Pacific. During the austral spring and winter of 2010, the most severe drought since the seventies has been registered in the upper Solimões. Its intensity and its length, when compared to the 2005 drought, can be explained by the addition of an El Niño in austral summer and a very warm episode in the Atlantic in boreal spring and summer. As in 2005, the lack of water in 2010 was more important in the southern tropical tributaries of the upper Solimões than in the northern ones. Por pares |
format |
Article in Journal/Newspaper |
author |
Espinoza, Jhan Carlo Ronchail, Josyane Guyot, Jean Loup Junquas, Clémentine Vauchel, Philippe Lavado, Waldo Drapeau, Guillaume Pombosa, Rodrigo |
author_facet |
Espinoza, Jhan Carlo Ronchail, Josyane Guyot, Jean Loup Junquas, Clémentine Vauchel, Philippe Lavado, Waldo Drapeau, Guillaume Pombosa, Rodrigo |
author_sort |
Espinoza, Jhan Carlo |
title |
Climate variability and extreme drought in the upper Solimões River (western Amazon Basin): understanding the exceptional 2010 drought |
title_short |
Climate variability and extreme drought in the upper Solimões River (western Amazon Basin): understanding the exceptional 2010 drought |
title_full |
Climate variability and extreme drought in the upper Solimões River (western Amazon Basin): understanding the exceptional 2010 drought |
title_fullStr |
Climate variability and extreme drought in the upper Solimões River (western Amazon Basin): understanding the exceptional 2010 drought |
title_full_unstemmed |
Climate variability and extreme drought in the upper Solimões River (western Amazon Basin): understanding the exceptional 2010 drought |
title_sort |
climate variability and extreme drought in the upper solimões river (western amazon basin): understanding the exceptional 2010 drought |
publisher |
American Geophysical Union (AGU) |
publishDate |
2011 |
url |
https://hdl.handle.net/20.500.12816/3049 https://doi.org/10.1029/2011GL047862 |
op_coverage |
Río Solimões Amazonas |
geographic |
Austral Pacific |
geographic_facet |
Austral Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
urn:issn:0094-8276 Espinoza, J. C., Ronchail, J., Guyot, J. L., Junquas, C., Vauchel, P., Lavado, W., . Pombosa, R. (2011). Climate variability and extreme drought in the upper Solimões River (western Amazon Basin): understanding the exceptional 2010 drought.==$Geophysical Research Letters, 38$==(13), L13406. https://doi.org/10.1029/2011GL047862 index-oti2018 http://hdl.handle.net/20.500.12816/3049 Geophysical Research Letters https://doi.org/10.1029/2011GL047862 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/20.500.12816/304910.1029/2011GL047862 |
container_title |
Geophysical Research Letters |
container_volume |
38 |
container_issue |
13 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1772817507271311360 |