Mapping of Coastline Changes in Athens Riviera over the Past 76 Year’s Measurements

Skilodimou, Hariklia D.; Antoniou, Vasileios; Bathrellos, George D.; Tsami, Eleni

doi:10.3390/w13152135

Cited by 13 publications

(5 citation statements)

References 40 publications

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“…Figure 2 shows the approach used in our study. First, GPS data and satellite images (Sentinel-2 and Google Earth) were collected and used as an integral means [31] for observing the evolution of the sand spit. Wave data were also collected in the first step of the research.…”

Section: Methodsmentioning

confidence: 99%

Sand Spit Morphology at an Inlet on Phu Quoc Island, Vietnam

Duy

Tỷ

Thanh

et al. 2023

Water

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Tidal inlets with attached sand spits are a very common coastal landform. Since the evolution of sand spits along coastlines influence the social-economic development of local coastal areas, sand spits have become the objects of numerous studies. However, previous studies have mainly focused on sand spits that are usually in the scale of hundreds of meters in width, whilst knowledge about the evolution of smaller-scale sand spits still remains limited. Therefore, in this study, the morphological change of a small and unexplored sand spit in front of Song Tranh Inlet on the west coast of Phu Quoc Island, Vietnam is investigated. Satellite images are first used to observe the morphological change of the sand spit and calculate the longshore sediment transport rates (LSTR) along the sand spit. Waves and beach sediments are collected at the study site to calculate the longshore sediment transport rate using the CERC formula. It is found that there is a seasonal variation in the evolution of the sand spit at Song Tranh Inlet. The longshore sediment transport rates along the spit calculated by image analysis are 39,000 m3/year, 66,000 m3/year, and 40,000 m3/year, whilst the longshore sediment transport rate calculated by the CERC formula is 72,000 m3/year. This study aims to contribute to the methodology for investigating the evolutions of small sand spits and, specifically, sustainable coastal management for Phu Quoc Island, which is well-known as the Pearl Island of Vietnam.

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Section: Methodsmentioning

confidence: 99%

Sand Spit Morphology at an Inlet on Phu Quoc Island, Vietnam

Duy

Tỷ

Thanh

et al. 2023

Water

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“…In the Athens Riviera, the coastline was enhanced by 40% from 1945 to 2021, while land reclaimed to the sea area now approached 2.7 km 2 because of human interventions. The growth of urban fronts in the coastal area resulted in this artificial increase of coastline length [73].…”

Section: Major Reasons For Coastline Changes In the Ghmgbamentioning

confidence: 99%

Remote Sensing of the Coastline Variation of the Guangdong–Hongkong–Macao Greater Bay Area in the Past Four Decades

Yao

et al. 2021

JMSE

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In this study, a combination of example-based feature extraction and visual interpretation was applied to analyze the coastline variations in the Guangdong–Hong Kong–Macao Greater Bay Area (GHMGBA) from the past four decades based on the Landsat satellite remote sensing image data from 1987–2018, using ENVI and ArcGIS software. The results showed that the total length of the coastline of the GHMGBA increased in the past four decades, rising from 1291 km in 1987 to 1411 km in 2018. Among these, artificial coastline increased by 450 km, while the other coastline types decreased. The type of coastline that decreased the most was bedrock coastline, by a total of 172 km. The silty coastline disappeared, and almost all of it was converted to artificial coastline. Variations in the coastline of the GHMGBA were mainly connected to human activities and showed an overall trend of advancing towards the ocean. Dynamic monitoring of coastline variations can provide a reference for the protection of natural resources, sustainable marine development and rational planning of the coastal zone.

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“…Research conducted on the East Coast of South Korea found that the artificial structures constructed along the coast have not completely solved or stopped erosion but shifted it from one location to another [14]. On the contrary, work by Skilodimou et al [15] shows how coastlines have been enhanced by 40% over the last 76 years due to human interventions, in this case, earth filling.…”

Section: Introductionmentioning

confidence: 99%

Anthropic Action on Historical Shoreline Changes and Future Estimates Using GIS: Guadarmar Del Segura (Spain)

Fernández-Hernández,

Calvo,

Iglesias

et al. 2023

Applied Sciences

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A good understanding of historical change rates is a key requirement for effective coastal zone management and reliable predictions of shoreline evolution. Historical shoreline erosion for the coast of Guardamar del Segura (Alicante, Spain) is analyzed based on aerial photographs dating from 1930 to 2022 using the Digital Shoreline Analysis System (DSAS). This area is of special interest because the construction of a breakwater in the 1990s, which channels the mouth of the Segura River, has caused a change in coastal behavior. The prediction of future shorelines is conducted up to the year 2040 using two models based on data analysis techniques: the extrapolation of historical data (including the uncertainty of the historical measurements) and the Bruun-type model (considering the effect of sea level rises). The extrapolation of the natural erosion of the area up to 1989 is also compared with the reality, already affected by anthropic actions, in the years 2005 and 2022. The construction of the breakwater has accelerated the erosion along the coast downstream of this infrastructure by about 260%, endangering several houses that are located on the beach itself. The estimation models predict transects with erosions ranging from centimeters (±70 cm) to tens of meters (±30 m). However, both models are often overlapping, which gives a band where the shoreline may be thought to be in the future. The extrapolation of erosion up to 1989, and its subsequent comparison, shows that in most of the study areas, anthropic actions have increased erosion, reaching values of more than 35 m of shoreline loss. The effect of anthropic actions on the coast is also analyzed on the housing on the beach of Babilonia, which has lost around 17% of its built-up area in 40 years. This work demonstrates the importance of historical analysis and predictions before making any significant changes in coastal areas to develop sustainable plans for coastal area management.

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Mapping of Coastline Changes in Athens Riviera over the Past 76 Year’s Measurements

Cited by 13 publications

References 40 publications

Sand Spit Morphology at an Inlet on Phu Quoc Island, Vietnam

Sand Spit Morphology at an Inlet on Phu Quoc Island, Vietnam

Remote Sensing of the Coastline Variation of the Guangdong–Hongkong–Macao Greater Bay Area in the Past Four Decades

Anthropic Action on Historical Shoreline Changes and Future Estimates Using GIS: Guadarmar Del Segura (Spain)

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