Climatic characteristics of the 2010-2016 drought in the semiarid Northeast Brazil region
ABSTRACT This study discusses the climatological aspects of the most severe drought ever recorded in the semiarid region Northeast Brazil. Droughts are recurrent in the region and while El Nino has driven some of these events others are more dependent on the tropical North Atlantic sea surface tempe...
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ftjscielo:oai:scielo:S0001-37652018000501973 2023-05-15T17:33:08+02:00 Climatic characteristics of the 2010-2016 drought in the semiarid Northeast Brazil region MARENGO,JOSÉ A. ALVES,LINCOLN M. ALVALA,REGINA C.S CUNHA,ANA PAULA BRITO,SHEILA MORAES,OSVALDO L.L. 2018-08-01 text/html http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000501973 en eng Academia Brasileira de Ciências 10.1590/0001-3765201720170206 info:eu-repo/semantics/openAccess Anais da Academia Brasileira de Ciências v.90 n.2 suppl.1 2018 drought Northeast Brazil rainfall water deficit El Nino vulnerability info:eu-repo/semantics/article 2018 ftjscielo 2019-12-16T07:15:32Z ABSTRACT This study discusses the climatological aspects of the most severe drought ever recorded in the semiarid region Northeast Brazil. Droughts are recurrent in the region and while El Nino has driven some of these events others are more dependent on the tropical North Atlantic sea surface temperature fields. The drought affecting this region during the last 5 years shows an intensity and impact not seen in several decades in the regional economy and society. The analysis of this event using drought indicators as well as meteorological fields shows that since the middle 1990s to 2016, 16 out of 25 years experienced rainfall below normal. This suggests that the recent drought may have in fact started in the middle-late 1990s, with the intense droughts of 1993 and 1998, and then the sequence of dry years (interrupted by relatively wet years in 2007, 2008, 2009 and 2011) after that may have affected the levels of reservoirs in the region, leading to a real water crisis that was magnified by the negative rainfall anomalies since 2010. Article in Journal/Newspaper North Atlantic SciELO Brazil (Scientific Electronic Library Online) |
institution |
Open Polar |
collection |
SciELO Brazil (Scientific Electronic Library Online) |
op_collection_id |
ftjscielo |
language |
English |
topic |
drought Northeast Brazil rainfall water deficit El Nino vulnerability |
spellingShingle |
drought Northeast Brazil rainfall water deficit El Nino vulnerability MARENGO,JOSÉ A. ALVES,LINCOLN M. ALVALA,REGINA C.S CUNHA,ANA PAULA BRITO,SHEILA MORAES,OSVALDO L.L. Climatic characteristics of the 2010-2016 drought in the semiarid Northeast Brazil region |
topic_facet |
drought Northeast Brazil rainfall water deficit El Nino vulnerability |
description |
ABSTRACT This study discusses the climatological aspects of the most severe drought ever recorded in the semiarid region Northeast Brazil. Droughts are recurrent in the region and while El Nino has driven some of these events others are more dependent on the tropical North Atlantic sea surface temperature fields. The drought affecting this region during the last 5 years shows an intensity and impact not seen in several decades in the regional economy and society. The analysis of this event using drought indicators as well as meteorological fields shows that since the middle 1990s to 2016, 16 out of 25 years experienced rainfall below normal. This suggests that the recent drought may have in fact started in the middle-late 1990s, with the intense droughts of 1993 and 1998, and then the sequence of dry years (interrupted by relatively wet years in 2007, 2008, 2009 and 2011) after that may have affected the levels of reservoirs in the region, leading to a real water crisis that was magnified by the negative rainfall anomalies since 2010. |
format |
Article in Journal/Newspaper |
author |
MARENGO,JOSÉ A. ALVES,LINCOLN M. ALVALA,REGINA C.S CUNHA,ANA PAULA BRITO,SHEILA MORAES,OSVALDO L.L. |
author_facet |
MARENGO,JOSÉ A. ALVES,LINCOLN M. ALVALA,REGINA C.S CUNHA,ANA PAULA BRITO,SHEILA MORAES,OSVALDO L.L. |
author_sort |
MARENGO,JOSÉ A. |
title |
Climatic characteristics of the 2010-2016 drought in the semiarid Northeast Brazil region |
title_short |
Climatic characteristics of the 2010-2016 drought in the semiarid Northeast Brazil region |
title_full |
Climatic characteristics of the 2010-2016 drought in the semiarid Northeast Brazil region |
title_fullStr |
Climatic characteristics of the 2010-2016 drought in the semiarid Northeast Brazil region |
title_full_unstemmed |
Climatic characteristics of the 2010-2016 drought in the semiarid Northeast Brazil region |
title_sort |
climatic characteristics of the 2010-2016 drought in the semiarid northeast brazil region |
publisher |
Academia Brasileira de Ciências |
publishDate |
2018 |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000501973 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Anais da Academia Brasileira de Ciências v.90 n.2 suppl.1 2018 |
op_relation |
10.1590/0001-3765201720170206 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766131531445698560 |