Tendências do controle climático oceânico sob a variabilidade temporal da precipitação no Nordeste do Brasil
Given the significant differences in spatial and temporal distribution of rainfall, prolonged periods of water stress, problematic soils and absence of perennial rivers, the Northeastern interior is the region most vulnerable to climate change in Brazil. Based on analysis of climate data, this study...
Published in: | Revista de geografía Norte Grande |
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Format: | Article in Journal/Newspaper |
Language: | Spanish |
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Pontificia Universidad Católica de Chile, Facultad de Historia, Geografía y Ciencias Políticas, Instituto de Geografía
2021
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Online Access: | https://ojs.uc.cl/index.php/RGNG/article/view/41171 https://doi.org/10.4067/S0718-34022016000100002 |
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ftpunivcchileojs:oai:ojs2.ojs.uc.cl:article/41171 2023-06-06T11:57:29+02:00 Tendências do controle climático oceânico sob a variabilidade temporal da precipitação no Nordeste do Brasil Silva Nóbrega, Ranyére Chagas Felipe Santiago, Gabriela Ayane 2021-09-14 application/pdf https://ojs.uc.cl/index.php/RGNG/article/view/41171 https://doi.org/10.4067/S0718-34022016000100002 spa spa Pontificia Universidad Católica de Chile, Facultad de Historia, Geografía y Ciencias Políticas, Instituto de Geografía https://ojs.uc.cl/index.php/RGNG/article/view/41171/33151 https://ojs.uc.cl/index.php/RGNG/article/view/41171 doi:10.4067/S0718-34022016000100002 Revista de Geografía Norte Grande; Núm. 63 (2016); 9-26 0718-3402 0379-8682 mudanças climáticas impactos climáticos desastres naturais climate change climate impacts natural disasters info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares 2021 ftpunivcchileojs https://doi.org/10.4067/S0718-34022016000100002 2023-04-16T12:25:34Z Given the significant differences in spatial and temporal distribution of rainfall, prolonged periods of water stress, problematic soils and absence of perennial rivers, the Northeastern interior is the region most vulnerable to climate change in Brazil. Based on analysis of climate data, this study aims to identify trends in sea surface temperatures in the North Atlantic, South Atlantic, East Pacific and Central Pacific Oceans and their relation with the temporal variability in precipitation in Pernambuco in recent periods. Three methods were used to achieve the proposed objective. The Rain Anomaly Index was used as evidence of the relationship between the oceans and rainfall in NEB. Research trends in TSM's the Mann-Kendall method. To demonstrate changes in current precipitation, climate indices suggested by the Expert Team on Detection, Monitoring and Climate Change Indices were used. The climate change indices indicated that changes in rainfall patterns have been occurring, with a tendency toward an increase in the volume of rain (with the exception of the eastern coast) and more concentrated seasonal distributions. Statistical analysis of TSM's on the Pacific and Atlantic allowed us to observe that there is a warming trend and that when analyzed alone, the occurrence of positive anomalies over the eastern Pacific (El Niño) and negative anomalies over the South Atlantic (positive dipole), droughts are more severe, based on analysis of the rainfall anomaly index. Also based on the IAC, we concluded that when both events occur in isolation they exert influence on rainfall in the region, however, when they act together this influence is more pronounced, changing the behavior of the general circulation of the atmosphere meridionaly (Hadley cell) and zonally (Walker cell). Com significante diferença na distribuição espaço-temporal da chuva, prolongados períodos de deficiência hídrica, solos problemáticos e ausência de rios perenes, o sertão nordestino é a região mais vulnerável as mudanças climáticas no Brasil. ... Article in Journal/Newspaper North Atlantic Unknown Kendall ENVELOPE(-59.828,-59.828,-63.497,-63.497) Nordeste ENVELOPE(-66.867,-66.867,-68.167,-68.167) Pacific Sob’ ENVELOPE(66.156,66.156,66.322,66.322) Solos’ ENVELOPE(42.706,42.706,64.750,64.750) Revista de geografía Norte Grande 63 9 26 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftpunivcchileojs |
language |
Spanish |
topic |
mudanças climáticas impactos climáticos desastres naturais climate change climate impacts natural disasters |
spellingShingle |
mudanças climáticas impactos climáticos desastres naturais climate change climate impacts natural disasters Silva Nóbrega, Ranyére Chagas Felipe Santiago, Gabriela Ayane Tendências do controle climático oceânico sob a variabilidade temporal da precipitação no Nordeste do Brasil |
topic_facet |
mudanças climáticas impactos climáticos desastres naturais climate change climate impacts natural disasters |
description |
Given the significant differences in spatial and temporal distribution of rainfall, prolonged periods of water stress, problematic soils and absence of perennial rivers, the Northeastern interior is the region most vulnerable to climate change in Brazil. Based on analysis of climate data, this study aims to identify trends in sea surface temperatures in the North Atlantic, South Atlantic, East Pacific and Central Pacific Oceans and their relation with the temporal variability in precipitation in Pernambuco in recent periods. Three methods were used to achieve the proposed objective. The Rain Anomaly Index was used as evidence of the relationship between the oceans and rainfall in NEB. Research trends in TSM's the Mann-Kendall method. To demonstrate changes in current precipitation, climate indices suggested by the Expert Team on Detection, Monitoring and Climate Change Indices were used. The climate change indices indicated that changes in rainfall patterns have been occurring, with a tendency toward an increase in the volume of rain (with the exception of the eastern coast) and more concentrated seasonal distributions. Statistical analysis of TSM's on the Pacific and Atlantic allowed us to observe that there is a warming trend and that when analyzed alone, the occurrence of positive anomalies over the eastern Pacific (El Niño) and negative anomalies over the South Atlantic (positive dipole), droughts are more severe, based on analysis of the rainfall anomaly index. Also based on the IAC, we concluded that when both events occur in isolation they exert influence on rainfall in the region, however, when they act together this influence is more pronounced, changing the behavior of the general circulation of the atmosphere meridionaly (Hadley cell) and zonally (Walker cell). Com significante diferença na distribuição espaço-temporal da chuva, prolongados períodos de deficiência hídrica, solos problemáticos e ausência de rios perenes, o sertão nordestino é a região mais vulnerável as mudanças climáticas no Brasil. ... |
format |
Article in Journal/Newspaper |
author |
Silva Nóbrega, Ranyére Chagas Felipe Santiago, Gabriela Ayane |
author_facet |
Silva Nóbrega, Ranyére Chagas Felipe Santiago, Gabriela Ayane |
author_sort |
Silva Nóbrega, Ranyére |
title |
Tendências do controle climático oceânico sob a variabilidade temporal da precipitação no Nordeste do Brasil |
title_short |
Tendências do controle climático oceânico sob a variabilidade temporal da precipitação no Nordeste do Brasil |
title_full |
Tendências do controle climático oceânico sob a variabilidade temporal da precipitação no Nordeste do Brasil |
title_fullStr |
Tendências do controle climático oceânico sob a variabilidade temporal da precipitação no Nordeste do Brasil |
title_full_unstemmed |
Tendências do controle climático oceânico sob a variabilidade temporal da precipitação no Nordeste do Brasil |
title_sort |
tendências do controle climático oceânico sob a variabilidade temporal da precipitação no nordeste do brasil |
publisher |
Pontificia Universidad Católica de Chile, Facultad de Historia, Geografía y Ciencias Políticas, Instituto de Geografía |
publishDate |
2021 |
url |
https://ojs.uc.cl/index.php/RGNG/article/view/41171 https://doi.org/10.4067/S0718-34022016000100002 |
long_lat |
ENVELOPE(-59.828,-59.828,-63.497,-63.497) ENVELOPE(-66.867,-66.867,-68.167,-68.167) ENVELOPE(66.156,66.156,66.322,66.322) ENVELOPE(42.706,42.706,64.750,64.750) |
geographic |
Kendall Nordeste Pacific Sob’ Solos’ |
geographic_facet |
Kendall Nordeste Pacific Sob’ Solos’ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Revista de Geografía Norte Grande; Núm. 63 (2016); 9-26 0718-3402 0379-8682 |
op_relation |
https://ojs.uc.cl/index.php/RGNG/article/view/41171/33151 https://ojs.uc.cl/index.php/RGNG/article/view/41171 doi:10.4067/S0718-34022016000100002 |
op_doi |
https://doi.org/10.4067/S0718-34022016000100002 |
container_title |
Revista de geografía Norte Grande |
container_issue |
63 |
container_start_page |
9 |
op_container_end_page |
26 |
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1767965682561974272 |