Resposta de uma praia arenosa a um evento de ressaca do mar: o caso da Praia do Icaraí (Caucaia, Ceará, Brasil)

Paula, Davis Pereira de; Neto, Carlos de Araújo Farrapeira

doi:10.5216/ag.v11i2.39302

Cited by 5 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In addition, swell‐type waves occasionally occur, with peak periods above 10 s, significant heights that exceed 2.5 m and a predominant NNE direction (Silva et al, 2011). Similar wave climate values for the region were observed by Paula and Neto (2017).…”

Section: Regional Settingssupporting

confidence: 88%

“…Although different techniques are used to assess shoreline variation, the most common are monitoring with topographic surveys (Guerra, 2014; Paula & Neto, 2017), shoreline mapping using aerial photographs or satellite images (Albino et al, 2016; Díaz‐Cuevas et al, 2020; Oliveira et al, 2017) or a combination of these (Jonah et al, 2016; Martínez et al, 2018; Stanchev et al, 2018).…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Long‐term and short‐term analysis of shoreline change and cliff retreat on Brazilian equatorial coast

Leisner,

de Paula,

Alves

et al. 2023

Earth Surf Processes Landf

View full text Add to dashboard Cite

Assessing historical changes in the shoreline and retreat of cliffs is essential for understanding the evolution and behaviour of specific coastal systems. The present study focused on shoreline changes and cliff base retreat trends at different time scales (annual/decadal) along a 680‐m stretch of Pacheco Beach (Caucaia, Northeast Brazil), which are characterized by coastal erosion and mass movements that have posed risks to residents and visitors to this beach. Shoreline position data were obtained through images collected by satellites and field campaigns for precision mapping through unmanned aerial vehicle (UAV) photogrammetry. The spatiotemporal variations of the shoreline were acquired through an extension of the ArcGIS Digital Shoreline Analysis System (DSAS) and the linear regression rate (LRR) statistical method that reflects the variations that have occurred in the coastal segment. The long‐term results show constant erosion patterns in the study area, with a shoreline retreat of −31 m in the last 17 years at an average rate of −1.8 m/year. In the short term, the average rate of retreat between May 2021 and Jan 2022 was −2.9 m, indicating that 88.78% of the evaluated section was in a continuous process of erosion. Several factors and processes cause the short‐term rates to be more severe than historical rates, demonstrating the stochastic nature of the Pacheco Beach cliff system. This research provides essential data for understanding and predicting shoreline changes on different time scales, thereby contributing to the identification and zoning of unstable cliffs and allowing for the mapping of risk areas to direct coastal management strategies.

show abstract

Section: Regional Settingssupporting

confidence: 88%

Section: Methodsmentioning

confidence: 99%

Long‐term and short‐term analysis of shoreline change and cliff retreat on Brazilian equatorial coast

Leisner,

de Paula,

Alves

et al. 2023

Earth Surf Processes Landf

View full text Add to dashboard Cite

show abstract

“…Pinheiro et al, (2009) classificou este trecho, tendo como referencial a classificação morfodinâmica proposta por Wright e Short (1984), como um estágio intermediário com a presença de bancos submersos. No segundo semestre, quando esses bancos estão presentes, originam-se condições ideais para o assentamento de partículas de menor diâmetro, devido ao processo de dissipação da energia das ondas quando passam sobre essas feições, como ressalta Paula (2017). Nesse sentido, ocorreu uma gradação lateral da distribuição do diâmetro médio do grão em agosto, com valores relativos menores a leste, aumentando em direção a oeste (Figura 5).…”

Section: Diâmetro Médiounclassified

Caracterização Sedimentológica da Praia de Morro Branco, Litoral Leste Cearense: Uma Análise Espaço-temporal

CÂMARA

Barros

Silva

2021

Rev. Bras. Geog. Fis.

View full text Add to dashboard Cite

O objetivo deste trabalho foi avaliar e caracterizar a distribuição espaço-temporal dos parâmetros estatísticos dos sedimentos superficiais da Praia de Morro Branco, no litoral leste cearense, com ênfase nos seguintes parâmetros: Diâmetro médio, grau de selecionamento, curtose e assimetria. Para isso, a metodologia utilizada foi a de Suguio (1973), tendo como base a escala de Wentworth (1992) e os parâmetros descritos por Folk e Ward (1957). Os softwares utilizados foram o Sistema de Análise Granulométrica (SAG) para o tratamento dos parâmetros estatísticos; o SigmaPlot para gerar os gráficos de dispersão e correlação; e o Surfer para a interpolação dos dados. Os sedimentos que compõem a Praia de Morro Branco são predominantemente classificados de areia média e fina, com o grau de selecionamento moderado. Quanto a curtose, houve a presença majoritária de sedimentos leptocúrticos e mesocúrticos, tendo os valores de assimetria classificados por aproximadamente simétricos. Houveram diferenças espaciais entre os setores leste, central e oeste; e temporal, baseada na influência dos processos costeiros e feições costeiras (dunas, falésias e plataforma de abrasão) sobre o ambiente praial. Os dados oriundos deste trabalho podem servir de subsídios para a gestão costeira e ambiental e apontam a necessidade da preservação das feições costeiras. Sedimentological Characterization of the Morro Branco Beach, East Coast of Ceará: A Spatio-temporal AnalysisA B S T R A C TThe objective of this work was to evaluate and characterize the spatio-temporal distribution of the statistical parameters of the superficial sediments of the Morro Branco Beach in the east coast of Ceará State, with emphasis on the following parameters: Mean size, sorting, kurtosis and skewness. For this, the methodology used was that of Suguio (1973), based on the Wentworth scale (1922) and the parameters described by Folk and Ward (1957). The software used was the Granulometric Analysis System (GAS) for the treatment of statistical parameters; SigmaPlot to generate the scatter and correlation graphs; and Surfer for data interpolation. The sediments present at Morro Branco Beach are predominantly classified as medium and fine sand, with a moderate sorting. As for kurtosis, there was a major presence of leptocurtic and mesocurtic sediments, with the values of skewness being classified by approximately symmetrical. There were spatial differences between the eastern, central and western sectors; and temporal, based on the influence of coastal processes and coastal features (dunes, cliffs and abrasion platform) on the beach environment. The data from this work can use as subsidies for coastal and environmental management and point to the need to preserve coastal features.Keywords: Mean size; sorting; kurtosis and skewness

show abstract

Coastal Storm Events and Associated Impacts on Oceanic Beaches Between Ilha Grande and Cabo Frio (RJ, Brazil)

Carvalho,

Araújo,

Guerra

2024

The Latin American Studies Book Series

View full text Add to dashboard Cite

Resposta de uma praia arenosa a um evento de ressaca do mar: o caso da Praia do Icaraí (Caucaia, Ceará, Brasil)

Cited by 5 publications

References 5 publications

Long‐term and short‐term analysis of shoreline change and cliff retreat on Brazilian equatorial coast

Long‐term and short‐term analysis of shoreline change and cliff retreat on Brazilian equatorial coast

Caracterização Sedimentológica da Praia de Morro Branco, Litoral Leste Cearense: Uma Análise Espaço-temporal

Coastal Storm Events and Associated Impacts on Oceanic Beaches Between Ilha Grande and Cabo Frio (RJ, Brazil)

Contact Info

Product

Resources

About