Anos-padrão e tendências da precipitação pluvial na região do Médio Solimões, Amazonas, Brasil
The objective of this paper was to analyze the annual rainfall variability and to identify the standard-years of the Middle Solimões - AM region. For this, were collected rainfall data from the National Institute of Meteorology (INMET) and the National Water Agency (ANA) in the period 1992-2012 and...
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ftdoajarticles:oai:doaj.org/article:1a260a8df6474c9da4f3d8704d4e7f2d 2024-09-15T18:24:05+00:00 Anos-padrão e tendências da precipitação pluvial na região do Médio Solimões, Amazonas, Brasil Natacha Cíntia Regina Aleixo João Cândido André da Silva Neto https://doi.org/10.4000/confins.25065 https://doaj.org/article/1a260a8df6474c9da4f3d8704d4e7f2d EN FR PT eng fre por Confins https://journals.openedition.org/confins/25065 https://doaj.org/toc/1958-9212 1958-9212 doi:10.4000/confins.25065 https://doaj.org/article/1a260a8df6474c9da4f3d8704d4e7f2d Confins, Vol 43 rainfall Amazonas standard-years Middle Solimões Geography. Anthropology. Recreation G article ftdoajarticles https://doi.org/10.4000/confins.25065 2024-08-05T17:50:01Z The objective of this paper was to analyze the annual rainfall variability and to identify the standard-years of the Middle Solimões - AM region. For this, were collected rainfall data from the National Institute of Meteorology (INMET) and the National Water Agency (ANA) in the period 1992-2012 and applied statistical techniques such as the mean, coefficient of variation, percentile for year- standard, and non-parametric statistical tests such as Mann-Kendall and Petitt, with the aim of studying the trend, variability and rupture of the rainfall of the historical series. It was observed that the Northwest portion had the highest coefficients of variation, the dry and dry years in more than half of the meteorological stations were 2004/2005 and 2010/2011. The year 2012 was considered rainy in 50% of the seasons. The predominant frequency of the dry and dry-season standard years is related to the El Niño Southern Oscillation (ENSO) phenomena and the temperature of the North Atlantic and the ENSO cold phase in the predominantly rainy years. Significant positive and negative trends were 18.8%. The spatial extent of the tendency to increase precipitation occurred in stations close to the portions of the municipality of Tefé, Carauari and Fonte Boa and the negative ones in the municipality of Coari. It is concluded that the rainfall trend in the Middle Solimões did not demonstrate a predominant spatial pattern in the period analyzed except in a few individual seasons, but it demonstrated the greater presence in the last decade of standard dry and dry years Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Confins 43 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English French Portuguese |
topic |
rainfall Amazonas standard-years Middle Solimões Geography. Anthropology. Recreation G |
spellingShingle |
rainfall Amazonas standard-years Middle Solimões Geography. Anthropology. Recreation G Natacha Cíntia Regina Aleixo João Cândido André da Silva Neto Anos-padrão e tendências da precipitação pluvial na região do Médio Solimões, Amazonas, Brasil |
topic_facet |
rainfall Amazonas standard-years Middle Solimões Geography. Anthropology. Recreation G |
description |
The objective of this paper was to analyze the annual rainfall variability and to identify the standard-years of the Middle Solimões - AM region. For this, were collected rainfall data from the National Institute of Meteorology (INMET) and the National Water Agency (ANA) in the period 1992-2012 and applied statistical techniques such as the mean, coefficient of variation, percentile for year- standard, and non-parametric statistical tests such as Mann-Kendall and Petitt, with the aim of studying the trend, variability and rupture of the rainfall of the historical series. It was observed that the Northwest portion had the highest coefficients of variation, the dry and dry years in more than half of the meteorological stations were 2004/2005 and 2010/2011. The year 2012 was considered rainy in 50% of the seasons. The predominant frequency of the dry and dry-season standard years is related to the El Niño Southern Oscillation (ENSO) phenomena and the temperature of the North Atlantic and the ENSO cold phase in the predominantly rainy years. Significant positive and negative trends were 18.8%. The spatial extent of the tendency to increase precipitation occurred in stations close to the portions of the municipality of Tefé, Carauari and Fonte Boa and the negative ones in the municipality of Coari. It is concluded that the rainfall trend in the Middle Solimões did not demonstrate a predominant spatial pattern in the period analyzed except in a few individual seasons, but it demonstrated the greater presence in the last decade of standard dry and dry years |
format |
Article in Journal/Newspaper |
author |
Natacha Cíntia Regina Aleixo João Cândido André da Silva Neto |
author_facet |
Natacha Cíntia Regina Aleixo João Cândido André da Silva Neto |
author_sort |
Natacha Cíntia Regina Aleixo |
title |
Anos-padrão e tendências da precipitação pluvial na região do Médio Solimões, Amazonas, Brasil |
title_short |
Anos-padrão e tendências da precipitação pluvial na região do Médio Solimões, Amazonas, Brasil |
title_full |
Anos-padrão e tendências da precipitação pluvial na região do Médio Solimões, Amazonas, Brasil |
title_fullStr |
Anos-padrão e tendências da precipitação pluvial na região do Médio Solimões, Amazonas, Brasil |
title_full_unstemmed |
Anos-padrão e tendências da precipitação pluvial na região do Médio Solimões, Amazonas, Brasil |
title_sort |
anos-padrão e tendências da precipitação pluvial na região do médio solimões, amazonas, brasil |
publisher |
Confins |
url |
https://doi.org/10.4000/confins.25065 https://doaj.org/article/1a260a8df6474c9da4f3d8704d4e7f2d |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Confins, Vol 43 |
op_relation |
https://journals.openedition.org/confins/25065 https://doaj.org/toc/1958-9212 1958-9212 doi:10.4000/confins.25065 https://doaj.org/article/1a260a8df6474c9da4f3d8704d4e7f2d |
op_doi |
https://doi.org/10.4000/confins.25065 |
container_title |
Confins |
container_volume |
43 |
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1810464379872739328 |