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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21c.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34R/42EDDJ8
Repositóriosid.inpe.br/mtc-m21c/2020/05.05.11.34   (acesso restrito)
Última Atualização2020:05.05.11.34.01 (UTC) simone
Repositório de Metadadossid.inpe.br/mtc-m21c/2020/05.05.11.34.01
Última Atualização dos Metadados2022:01.04.01.35.07 (UTC) administrator
DOI10.3390/geosciences10040135
ISSN2076-3263
Chave de CitaçãoRochaJúniorSiCoGoPiHe:2020:BiAsDr
TítuloBivariate assessment of drought return periods and frequency in brazilian northeast using joint distribution by copula method
Ano2020
Mêsapr.
Data de Acesso09 maio 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho4397 KiB
2. Contextualização
Autor1 Rocha Júnior, Rodrigo Lins da
2 Silva, Fabrício Daniel dos Santos
3 Costa, Rafaela Lisboa
4 Gomes, Heliofábio Barros
5 Pinto, David Duarte Cavalcante
6 Herdies, Dirceu Luís
Identificador de Curriculo1
2
3
4
5
6 8JMKD3MGP5W/3C9JGTU
ORCID1 0000-0003-4654-8947
2 0000-0002-3185-6413
3
4
5
6 0000-0002-2872-8453
Grupo1
2
3
4
5
6 DIDMD-CGCPT-INPE-MCTIC-GOV-BR
Afiliação1 Universidade Federal de Alagoas (UFAL)
2 Universidade Federal de Alagoas (UFAL)
3 Universidade Federal de Alagoas (UFAL)
4 Universidade Federal de Alagoas (UFAL)
5 Universidade Federal de Alagoas (UFAL)
6 Instituto Nacional de Pesquisas Espaciais (INPE)
Endereço de e-Mail do Autor1 rrodrigo.junior@hotmail.com
2 fabricio.santos@icat.ufal.br
3 rafaelalisboac@gmail.com
4 heliofabio@icat.ufal.br
5 david.duarte@icat.ufal.br
6 dirceu.herdies@inpe.br
RevistaGeosciences (Switzerland)
Volume10
Número4
Páginase135
Histórico (UTC)2020-06-23 22:31:43 :: simone -> administrator :: 2020
2022-01-04 01:35:07 :: administrator -> simone :: 2020
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
Palavras-Chavemeteorological drought analysis
Standardized Precipitation Index (SPI)
archimedean copulas
probability distributions
ResumoThe Northeast region of Brazil (NRB) is the most populous semiarid area in the world and is extremely susceptible to droughts. The severity and duration of these droughts depend on several factors, and they do not necessarily follow the same behavior. The aim of this work is to evaluate the frequency of droughts in the NRB and calculate the return period of each drought event using the copula technique, which integrates the duration and severity of the drought in the NRB in a joint bivariate distribution. Monthly precipitation data from 96 meteorological stations spatially distributed in the NRB, ranging from 1961 to 2017, are used. The copula technique is applied to the Standardized Precipitation Index (SPI) on the three-month time scale, testing three families of Archimedean copula functions (Gumbel-Hougaard, Clayton and Frank) to reveal which model is best suited for the data. Averagely, the most frequent droughts observed in the NRB are concentrated in the northern sector of the region, with an observed duration varying from three and a half to five and a half months. However, the eastern NRB experiences the most severe droughts, lasting for 14 to 24 months. The probability distributions that perform better in modeling the series of severity and duration of droughts are exponential, normal and lognormal. The observed severity and duration values show that, for average values, the return period across the region is approximately 24 months. Still in this regard, the southernmost tip of the NRB stands out for having a return period of over 35 months. Regarding maximum observed values of severity and duration, the NRB eastern strip has the longest return period (>60 months), mainly in the southeastern portion where a return period above 90 months was observed. The northern NRB shows the shortest return period (~45 months), indicating that it is the NRB sector with the highest frequency of intense droughts. These results provide useful information for drought risk management in the NRB.
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4. Condições de acesso e uso
Idiomaen
Arquivo Alvogeosciences-10-00135.pdf
Grupo de Usuáriossimone
Grupo de Leitoresadministrator
simone
Visibilidadeshown
Permissão de Leituradeny from all and allow from 150.163
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/43SKC35
Lista de Itens Citandosid.inpe.br/mtc-m21/2012/07.13.14.44.41 2
DivulgaçãoPORTALCAPES; SCOPUS.
Acervo Hospedeirourlib.net/www/2017/11.22.19.04
6. Notas
Campos Vaziosalternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey secondarymark session shorttitle sponsor subject tertiarymark tertiarytype url
7. Controle da descrição
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