Estimating Flooding Level Through the Brazilian Coast Using Reanalysis Data

Silva, Paula Gomes da; Dalinghaus, Charline; González, M.; Gutiérrez, Olga; Espejo, Antonio Guerrero; Abascal, Ana J.; Klein, Antonio H. F.

doi:10.2112/si75-219.1

Cited by 12 publications

(8 citation statements)

References 7 publications

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“…This component was defined as the component "storm surge" because of its highly positive loading with the sea level factor. This positive loading is possibly consistent with the increase in storm surge events, rising tide and sea level rise, reported for the entire south coast of Brazil (Gomes da Silva et al 2016). However, this component still presented highly negative loading with the rainfall factor.…”

Section: Factors Affecting the Flooding Occurrencesupporting

confidence: 86%

“…With about 9000 km of coastline and 17 states bordering the Atlantic Ocean, Brazil has a variety of climatic and environmental conditions expressing its potential for coastal studies (Gomes da Silva et al 2016). The country constantly suffers from extreme events of precipitation, storms and rising sea levels and, as a result, flooding is a recurring annual problem that affects millions of people (Pezzoli and Cartacho 2013).…”

Section: Introductionmentioning

confidence: 99%

“…The lack of historical records and monitored data makes it difficult to verify flooding levels in most of the Brazilian coastal cities. Therefore, flooding management suffers from uncertain planning and inadequate preparation (Gomes da Silva et al 2016;Ogie et al 2019). Considering the inefficiency in allocating government resources, as well as the lack of monitoring data and the need for low complexity computational methodologies, new strategies that simplify the process and at the same time provide a holistic representation of the system are required.…”

Section: Introductionmentioning

confidence: 99%

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Geostatistical strategy to build spatial coastal-flooding models

Caprario

Azevedo

Santana

et al. 2021

Urban Water Journal

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The intensification of flooding events in urban coastal areas and the management of the extremely vulnerable ecosystems has become a global issue and has been the subject of several studies in recent decades. The combination of statistical modelling techniques and geospatial analysis has gained prominence in integrated management of natural hazards. Combined approach represents a promising strategy to reduce complexity, providing a holistic representation of the system. However, for applying planning and risk management alternatives in urban space of coastal areas, the causal relationships between environmental and anthropogenic factors distribution and the flooding sites have to be well clarified. This article aimed to propose a new strategy to build Spatial Coastal-Flooding Models based on records of flooding points occurred and environmental and anthropogenic characteristics of the area. The strategy was designed to combine simple but robust statistical techniques and relate geospatially data obtained from free and easily accessible online databases. The geostatistical strategy was applied in a coastal city of Brazil, where high environmental vulnerability and constantly flooding are observed. The strategy finds that the relationships between environmental and anthropogenic variables and flooding events are not homogeneous over space. The results indicate that the strategy can be easily replicable and refined through the inclusion of other factors of influence, obtaining good precision in the representation and explanation of the flooding events in coastal areas. In general, the strategy provides information that can support decision-making by government agencies in relation to integrated urban planning and mitigation of flooding risk coastal areas.

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Section: Factors Affecting the Flooding Occurrencesupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Geostatistical strategy to build spatial coastal-flooding models

Caprario

Azevedo

Santana

et al. 2021

Urban Water Journal

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“…This long coastline provides a variety of ecological conditions resulting in very different abiotic environments (Gomes da Silva et al. ). Phylogeographic patterns in marine fishes and invertebrates are generally more related to the impact of the strong currents affecting the region and acting as barriers to gene flow (e.g., the bifurcation into two branches of the South Equatorial Current at latitudes 10°–15° S; see Fig.…”

mentioning

confidence: 99%

Dual influence of terrestrial and marine historical processes on the phylogeography of the Brazilian intertidal red alga Gracilaria caudata

Ayres-Ostrock

Valéro

Mauger

et al. 2019

Journal of Phycology

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In this study, we explored how past terrestrial and marine climate changes have interacted to shape the phylogeographic patterns of the intertidal red seaweed Gracilaria caudata, an economically important species exploited for agar production in the Brazilian north‐east. Seven sites were sampled along the north‐east tropical and south‐east sub‐tropical Brazilian coast. The genetic diversity and structure of G. caudata was inferred using a combination of mitochondrial (COI and cox2‐3), chloroplast (rbcL) and 15 nuclear microsatellite markers. A remarkable congruence between nuclear, mitochondrial and chloroplast data revealed clear separation between the north‐east (from 03° S to 08° S) and the south‐east (from 20° S to 23° S) coast of Brazil. These two clades differ in their demographic histories, with signatures of recent demographic expansions in the north‐east and divergent populations in the south‐east, suggesting the maintenance of several refugia during the last glacial maximum due to sea‐level rise and fall. The Bahia region (around 12° S) occupies an intermediate position between both clades. Microsatellites and mtDNA markers showed additional levels of genetic structure within each sampled site located south of Bahia. The separation between the two main groups in G. caudata is likely recent, probably occurring during the Quaternary glacial cycles. The genetic breaks are concordant with (i) those separating terrestrial refugia, (ii) major river outflows and (iii) frontiers between tropical and subtropical regions. Taken together with previously published eco‐physiological studies that showed differences in the physiological performance of the strains from distinct locations, these results suggest that the divergent clades in G. caudata correspond to distinct ecotypes in the process of incipient speciation and thus should be considered for the management policy of this commercially important species.

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“…Ecological studies in the tropical province would also be essential to assess the behavior of populations during the summer and winter seasons, and during heatwaves. The extensive coast of Brazil is characterized by tropical and warm temperate provinces, with a wide diversity of environments positioned along a latitudinal temperature gradient, the influx of numerous rivers, and a transition zone with peculiar characteristics and high species diversity (Horta et al 2001;Gomes da Silva et al 2015). Nauer et al (2020) reported this habitat heterogeneity scenario within H. pseudomusciformis geographical distribution range resulting in three ecotypes distributed in the tropical, transitional, and warm temperate floristic provinces, respectively.…”

Section: Discussionmentioning

confidence: 99%

Thermal tolerance of Hypnea pseudomusciformis ecotypes (Cystocloniaceae, Rhodophyta) related to different floristic provinces along the Brazilian coast

Nauer

Oliveira

Plastino

et al. 2022

Phycological Research

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Studies on the effects of temperature on physiological processes are essential to model macroalgae biogeographic distribution. Tetrasporophytes of Hypnea pseudomusciformis were collected from three floristic provinces (tropical, transition and warm temperate) along the Brazilian coast (~3.000 km), representing three ecotypes. Specimens were cultured under 20 C, 24 C, 28 C and 32 C for 21 days, then physiological parameters (growth rates, photosynthesis and pigments content) were analyzed. H. pseudomusciformis specimens tolerated a temperature variation from 20 C to 32 C. However, all ecotypes displayed a significant decrease in physiological performance at 32 C in all parameters analyzed. We hypothesized that the H. pseudomusciformis ecotype from the tropical province is already living at its thermal physiological limit, reaching its maximum growth only in the winter months (June to September), whereas a warm temperate ecotype reaches maximum growth in the summer months (December to March). This wide thermal optimum may be the reason for the widespread distribution of this species along the Brazilian coast, allowing it to occupy different thermal environments.

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Estimating Flooding Level Through the Brazilian Coast Using Reanalysis Data

Cited by 12 publications

References 7 publications

Geostatistical strategy to build spatial coastal-flooding models

Geostatistical strategy to build spatial coastal-flooding models

Dual influence of terrestrial and marine historical processes on the phylogeography of the Brazilian intertidal red alga Gracilaria caudata

Thermal tolerance of Hypnea pseudomusciformis ecotypes (Cystocloniaceae, Rhodophyta) related to different floristic provinces along the Brazilian coast

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