Análise metodológica de estudos referentes a eventos de movimentos de massa e erosão ocorridos na região Nordeste do Brasil / A methodological analysis of studies regarding events of mass and erosion movements occurring in the northeast region of Brazil

Santos, Caio Lima dos; Listo, Fabrizio de Luiz Rosito; Silva, Osvaldo Girão da; Reis, Rafael Brito dos

doi:10.5752/p.2318-2962.2018v28n55p959-979

Cited by 2 publications

(3 citation statements)

References 4 publications

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“…Os DOLs ocorrem com maior frequência durante o inverno austral, ocasionando grandes volumes de precipitação diária (Kouadio et al, 2012, Gomes et al, 2015. Os altos volumes de precipitação são associados a desastres que ocorrem nas regiões costeiras do ENEB (Hounsou-gbo et al, 2015;Neves et al, 2016;Debortoli et al, 2017;Rodrigues et al, 2020), como alagamentos, inundações, quedas de barreiras e perdas econômicas, cujas consequenciais são potencializadas pela maior densidade de população morando em áreas de vulnerabilidade socioeconômico (Gomes et al, 2012;Santos et al, 2018;).…”

Section: Introductionunclassified

Previsão de extremos de chuva em Pernambuco: os eventos de maio de 2022

Silva¹,

Lopes²,

Ferreira³

et al. 2023

Rev. Bras. Geog. Fis.

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A Agência Pernambucana de Águas e Clima (APAC) tem por finalidade executar a Política Estadual de Recursos Hídricos e regular o uso da água, no âmbito dos recursos hídricos estaduais e federais nos termos em que lhe forem delegados, bem como realizar monitoramento hidrometeorológico e previsões de tempo e clima no estado de Pernambuco. Na agência, o setor de Gerência de Meteorologia e Mudanças Climáticas (GMMC), é responsável pelo monitoramento meteorológico e utiliza diversas ferramentas para previsão e monitoramento do tempo, tais como modelos atmosféricos regionais e globais nacionais e internacionais, satélite e radar meteorológicos e plataforma de coleta de dados. Com relação a previsão de tempo, uma das funções operacionais são envios de alertas meteorológicos para os órgãos de proteção e defesa civil do estado e municípios, bem como para os setores de interesse e sociedade civil. Na última semana do mês de maio de 2022, o estado de Pernambuco foi atingido por fortes chuvas que causaram vários transtornos a sociedade, em particular, na da Região Metropolitana do Recife, como enchentes, deslizamento de massas e inundação, dentre outros. O objetivo deste trabalho é mostrar como os modelos de previsão do tempo, utilizados na APAC, previram os eventos de chuva dos dias 25 e 28 de maio de 2022 e a metodologia na tomada de emissão de avisos de chuva pela Sala de Situação. As previsões realizadas pelos modelos globais apresentaram resultados divergentes entre si, mas o uso dos modelos em conjunto (regionais e globais) e do ensambles forneceram informações vitais para as previsões das chuvas extremas ocorridas e juntamente com a metodologia em uso pela agência, permitiram envios de alertas meteorológicos com antecedência pela Sala de Situação.Palavras chaves: APAC, Pernambuco, enchentes, evento extremo, desastres, deslizamento de massa. Forecast of Extreme Rain Events in Pernambuco: The May 2022 Events ABSTRACTThe Pernambuco Water and Climate Agency (APAC) has the purpose of executing the State Policy on Water Resources and regulating the use of water, within the scope of state and federal water resources under the terms delegated to it, as well as carrying out hydrometeorological monitoring and forecasting. of weather and climate in the state of Pernambuco. At the agency, the Meteorology and Climate Change Management (GMMC) sector is responsible for meteorological monitoring and uses several tools for forecasting and monitoring the weather, such as national and international regional and global atmospheric models, meteorological satellite and radar and a data collect. With regard to weather forecasting, one of the operational functions is sending weather alerts to civil defense and protection agencies in the state and municipalities, as well as to sectors of interest and civil society. In the last week of May 2022, the state of Pernambuco was hit by heavy rains that caused various disorders to society, in particular, that of the Metropolitan Region of Recife, such as floods, landslides and flooding, among others. The objective of this work is to show how the weather forecast models, used in APAC, predicted the rain events of May 25 and 28, 2022 and the methodology for issuing rain warnings by the Situation Room. The forecasts made by the global models presented divergent results, but the use of the models together (regional and global) and the ensemble provided vital information for the predictions of extreme rainfall that occurred and, together with the methodology used by the agency, allowed the sending of alerts. accurately and in advance by the Situation Room.Keywords: APAC, Pernambuco, floods, extreme event, disaster, landslide

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Section: Introductionunclassified

Previsão de extremos de chuva em Pernambuco: os eventos de maio de 2022

Silva¹,

Lopes²,

Ferreira³

et al. 2023

Rev. Bras. Geog. Fis.

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Section: Introductionmentioning

confidence: 99%

“…Since the Colonial Era, in the 16th century, the NEB is recording migration from inland to coastal areas due to droughts occurred mainly in semiarid regions (Marengo et al 2017). Meanwhile, severe rainfall in coastal areas can lead to flash floods and landslides with deaths and economic losses, mostly due to uneven urban space organization, and the occupation of hills or slopes, which favors geological instability (Gomes et al 2012;Dos Santos et al 2018).The semiarid, which corresponds to an area of about 1,542,000 km2 or ~11% of Brazil, is the region most vulnerable to droughts and desertification in the NEB (Marengo et al 2017;Carvalho et al 2020). In contrast, the Eastern and Northern Northeast Brazilian (ENEB and NNEB) coasts have not only a high susceptibility to intense rainfall episodes, landslides, flash floods, sea-rising damages, but also the most significant number of inhabitants in NEB (Hounsou-gbo et al 2015;Neves et al 2016;Debortoli et al 2017;Rodrigues et al 2020).The rainfall variability in the NEB northern and central semiarid regions is associated with the Inter-Tropical Convergence Zone (ITCZ) north-south migration (Moscati and Gan 2007;Rodrigues et al 2011;Hastenrath 2012;Marengo et al 2017).…”

mentioning

confidence: 99%

Assessing the Tropical South Atlantic atmosphere thermodynamics under distinct Sea Surface Temperature patterns

Silva¹,

Veleda²,

Costa³

et al. 2021

Preprint

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Northeast Brazil (NEB) is a susceptible region to the occurrence of extreme rainfall events. Sea surface temperature (SST) is used as an indicator for predicting intense weather events in this region. The westernmost Tropical South Atlantic region, also called Southern Atlantic Warm Pool (SAWP), is characterized by a source of heat and humidity which creates atmospheric instability for the NEB. In June 2010 the eastern coast of NEB (ENEB)was influenced by heavy rainfall, causing flash floods and landslides. On the other hand, 2012 marked the beginning of a period of droughts that affected the whole NEB area. The SAWP temperature in turn recorded anomalous values of + 1ºC (-0.5ºC) in 2010 (2012), respectively, although in June 2012 intense rainfall was recorded in ENEB, even with intense negative SST anomalies. With the Coupled-Ocean-Atmosphere-Wave and Sediment Transport (COAWST) model, simulations were made to characterize 2010 and 2012 atmospheric conditions, modifying the SST input data in both situations. The goal of this work is to assess the meteorological systems that occurred in 2010 and 2012 using observational, reanalysis, and simulated data, as well as to identify changes in atmospheric instability patterns, which are under influences of different SST conditions. We performed four cases, including: a) SST measured in 2010 with 2010 atmospheric conditions; b) SST measured in 2012 with weather conditions of 2010; c) SST measured in 2012 with 2012 weather conditions; d) measured in2010 with atmospheric conditions from 2012. The results showed that SAWP temperature significantly influenced the instability of meteorological systems. The impacts were more significant in the lower layer of the atmosphere, especially in the variables that lead to low-level instabilities. Also, it was observed that warmer atmospheric conditions favor the ocean environment to remain warmer, maintaining the unstable conditions over SAWP.

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Análise metodológica de estudos referentes a eventos de movimentos de massa e erosão ocorridos na região Nordeste do Brasil / A methodological analysis of studies regarding events of mass and erosion movements occurring in the northeast region of Brazil

Cited by 2 publications

References 4 publications

Previsão de extremos de chuva em Pernambuco: os eventos de maio de 2022

Previsão de extremos de chuva em Pernambuco: os eventos de maio de 2022

Assessing the Tropical South Atlantic atmosphere thermodynamics under distinct Sea Surface Temperature patterns

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