Extreme seasonal droughts and floods in Amazonia: causes, trends and impacts

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dc.contributor.authorMarengo, J. A.
dc.contributor.authorEspinoza, Jhan Carlo
dc.coverage.spatialAmazonía
dc.date.accessioned2018-09-11T16:23:45Z
dc.date.available2018-09-11T16:23:45Z
dc.date.issued2016
dc.description.abstractThis paper reviews recent progress in the study and understanding of extreme seasonal events in the Amazon region, focusing on drought and floods. The review includes a history of droughts and floods in the past, in the present and some discussions on future extremes in the context of climate change and its impacts on the Amazon region. Several extreme hydrological events, some of them characterized as ‘once in a century’, have been reported in the Amazon region during the last decade. While abundant rainfall in various sectors of the basin has determined extreme floods along the river's main stem in 1953, 1989, 1999, 2009, 2012–2015, deficient rainfall in 1912, 1926, 1963, 1980, 1983, 1995, 1997, 1998, 2005 and 2010 has caused anomalously low river levels, and an increase in the risk and number of fires in the region, with consequences for humans. This is consistent with changes in the variability of the hydrometeorology of the basin and suggests that extreme hydrological events have been more frequent in the last two decades. Some of these intense/reduced rainfalls and subsequent floods/droughts were associated (but not exclusively) with La Niña/El Niño events. In addition, moisture transport anomalies from the tropical Atlantic into Amazonia, and from northern to southern Amazonia alter the water cycle in the region year‐to‐year. We also assess the impacts of such extremes on natural and human systems in the region, considering ecological, economic and societal impacts in urban and rural areas, particularly during the recent decades. In the context of the future climate change, studies show a large range of uncertainty, but suggest that drought might intensify through the 21st century.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationMarengo, J. A., & Espinoza, J. C. (2016). Extreme seasonal droughts and floods in Amazonia: causes, trends and impacts.==$International Journal of Climatology, 36$==(3), 1033-1050. https://doi.org/10.1002/joc.4420es_ES
dc.identifier.doihttps://doi.org/10.1002/joc.4420es_ES
dc.identifier.govdocindex-oti2018
dc.identifier.journalInternational Journal of Climatologyes_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/2914
dc.language.isoenges_ES
dc.publisherWileyes_ES
dc.relation.ispartofurn:issn:0899-8418
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.subjectDroughtses_ES
dc.subjectFloodses_ES
dc.subjectExtremeses_ES
dc.subjectAmazoniaes_ES
dc.subjectImpactses_ES
dc.subjectVulnerabilityes_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.00es_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.09es_ES
dc.titleExtreme seasonal droughts and floods in Amazonia: causes, trends and impactses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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