Tidal flood area mapping in the face of climate change scenarios: case study in a tropical estuary in the Brazilian semi-arid region

Araújo, Paulo Victor N.; Amaro, Venerando Eustáquio; Aguiar, Leonlene S.; Lima, Caio C.; Lopes, Amauri

doi:10.5194/nhess-21-3353-2021

Cited by 5 publications

(6 citation statements)

References 35 publications

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“…The geosites present in the other protected areas are also exposed to this type of consequence, enhanced by climate change (Figure 26). Aguiar et al [21] evaluated the risk of tidal inundation due to climate change in the Apodi-Mossoró estuary, sector to the west of the Dunas do Rosado EPA and to the southeast of the Arrombado EPA and found a risk situation similar to that indicated by Araújo et al [59]. Aguiar et al [21] identified that flooding events can result in orders in excess of USD 147,000 and climate change scenarios show trends in increased flooding.…”

Section: Resultsmentioning

confidence: 91%

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Risk of Degradation and Coastal Flooding Hazard on Geoheritage in Protected Areas of the Semi-arid Coast of Brazil

Rabelo

Diniz

Araújo

et al. 2023

Water

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Geoconservation should be incorporated in the discussions regarding climate change impacts on geoheritage degradation, especially in coastal areas that are directly affected by extreme climate events. The geoheritage degradation risk in protected areas of the Brazilian semi-arid coast was assessed using a quantitative method. A correlation with the tidal flooding hazard predicted with the climate change scenario was also considered for the study areas. The results show that most of the geosites assessed present a high risk of degradation due, mainly, to their exposure to negligence and inadequate public management regarding their uses. All geosites located in the plain areas are exposed to the risk of flooding by rising tides, which is associated with human action and leads to worrying scenarios regarding the loss of scientific and aesthetic values. The collected data support the need to rethink geoheritage management in protected areas and the mitigation of problems that may become major threats in conjunction with global climate change.

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Section: Resultsmentioning

confidence: 91%

“…Araújo et al [59] highlight the presence of signs of sea level rise in coastal municipalities that encompass both the Dunas do Rosado EPA and the Ponta do Tubarão SDR. The results of this research show that 16% of the study area presents high to extremely high vulnerability to tidal flooding, corresponding to 205.30 km 2 .…”

Section: Resultsmentioning

confidence: 99%

Risk of Degradation and Coastal Flooding Hazard on Geoheritage in Protected Areas of the Semi-arid Coast of Brazil

Rabelo

Diniz

Araújo

et al. 2023

Water

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“…These ocean tides are primarily caused by gravitational forces and play a crucial role in modelling extreme conditions within estuary. Furthermore, [Araújo] stated that high tides are important to consider in modelling coastal flooding [9].…”

Section: Sea Levelmentioning

confidence: 99%

Impact of Landuse Change on The Inundations in The Ciberes Watershed

Briandy,

Anggraheni,

Kuntcoro

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Whenever the rainy season approaches, the Ciberes River always inundates a number of regions. This research was conducted to determine the effect of land use change on the inundation in the Ciberes Watershed, given the aforementioned context. Using land cover change data from 2000 to 2023, a hydrological and hydrodynamic analysis of the Ciberes Watershed is conducted to determine the impact of landuse change. This investigation employs HEC-HMS for hydrological modeling and HEC-RAS for 1D and 2D hydrodynamic modeling. The simulation results demonstrate that the change in CN value is directly proportional to the flood discharge, and the flood discharge is directly proportional to the height of the flood inundation. Based on these findings, it can be concluded that the river’s cross section can accommodate flood discharges with a return period of 50 years, except in coastal areas. whereas the floods that occurred in 2018 and 2022 have a 10-year return period. It can be concluded that the topographical condition of the river in the downstream segment, which has a higher elevation than the surrounding land and flat soil conditions, is the primary cause of inundation in the Ciberes Watershed.

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“…These ocean tides are primarily caused by gravitational forces and play a crucial role in modelling extreme conditions within estuary. Furthermore, Araújo et al (2021) stated that high tides are important to consider in modelling coastal flooding.…”

Section: Sea Levelmentioning

confidence: 99%

“…This consideration is important to avoid underestimating the risk of flooding in an area, as coinciding hazards can have a more significant impact than separate occurrences. Additionally, accurate mapping of flood extent, vulnerability, and risk play a crucial role in the planning and implementing of interventions in flood-prone areas (Araújo et al, 2021). This research evaluated the effectiveness of coastal and river embankment under compound hazards conditions.…”

Section: Introductionmentioning

confidence: 99%

Coastal and River Embankment Performance at Cengkareng Drain Estuary Under Compound Hazards Conditions Using HEC-RAS 2D

Hastomo,

Anggraheni,

Prasetyo

et al. 2023

jcef

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Jakarta is prone to pluvial, fluvial, and coastal flooding due to its geographical location and topography. In response to this problem, the Indonesian government has implemented several master plans, including the National Capital Integrated Coastal Development (NCICD). This ongoing program encompasses the construction of coastal and river embankment that stretch all over the coast of Jakarta. Since many coastal areas in Jakarta are residential or industrial, evaluating this performance of embankment has become crucial for effective flood management. The findings of this research can also support the development of other locations where NCICD embankment plan and enhance coastal resilience. Therefore, this research assessed the effectiveness of coastal and river embankment at Cengkareng Drain, a vital floodway in Jakarta, during extreme events that occur simultaneously. To simulate flooding events, two-dimensional HEC-RAS features were used to numerically calculate the area and depth of inundation. The simulation required geometry, terrain, land cover, and unsteady flow data. For the flow boundary conditions, a 100-year design rainfall, HHWL (Highest High Water Level), and 100-year design wave were considered to represent estuary conditions accurately. The simulation result showed that the maximum water level influenced by these factors was +3.145 mMSL, while the planned embankment top elevation was +3.40 mMSL. Furthermore, without the NCICD embankment, the simulation showed an inundation area of 1212.37 ha, which was reduced to 1111.22 ha after their implementation, leading to a decrease of 101.15 ha. This reduction significantly decreases potential damage to property and infrastructure, particularly in densely populated areas. The simulation also showed a reduction of 86.49 hectares or 66.22% in the inundation area with a depth exceeding 1 meter. These findings demonstrate the effectiveness of embankment in reducing the inundation area without any overtopping incidents.

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Tidal flood area mapping in the face of climate change scenarios: case study in a tropical estuary in the Brazilian semi-arid region

Cited by 5 publications

References 35 publications

Risk of Degradation and Coastal Flooding Hazard on Geoheritage in Protected Areas of the Semi-arid Coast of Brazil

Risk of Degradation and Coastal Flooding Hazard on Geoheritage in Protected Areas of the Semi-arid Coast of Brazil

Impact of Landuse Change on The Inundations in The Ciberes Watershed

Coastal and River Embankment Performance at Cengkareng Drain Estuary Under Compound Hazards Conditions Using HEC-RAS 2D

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