InSAR Monitoring of Italian Coastline Revealing Natural and Anthropogenic Ground Deformation Phenomena and Future Perspectives

Polcari, Marco; Albano, Matteo; Montuori, Antonio; Bignami, Christian; Tolomei, Cristiano; Pezzo, Giuseppe; Falcone, Sergio; Piana, Carmelo La; Doumaz, Fawzi; Salvi, Stefano; Stramondo, Salvatore

doi:10.3390/su10093152

Cited by 23 publications

(21 citation statements)

References 34 publications

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“…An Interferometric Synthetic Aperture Radar (InSAR) analysis [63] did not show evidence of anthropogenic-induced displacement in the Taranto area. This reveals the general tectonic stability in the NE end of the gulf and a very slight subsidence trend in the northern part of the City of Taranto.…”

Section: Tectonics and Isostasymentioning

confidence: 94%

Sea-Level Rise and Shoreline Changes Along an Open Sandy Coast: Case Study of Gulf of Taranto, Italy

Scardino

Sabatier

Scicchitano

et al. 2020

Water

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The dynamics of the sandy coast between Castellaneta and Taranto (Southern Italy) has been influenced by many natural and anthropogenic factors, resulting in significant changes in the coastal system over the last century. The interactions between vertical components of sea-level changes and horizontal components of the sedimentary budget, in combination with anthropogenic impact, have resulted in different erosion and accretion phases in the past years. Local isostatic, eustatic, and vertical tectonic movements, together with sedimentary budget changes, must be considered in order to predict the shoreline evolution and future marine submersion. In this study, all morpho-topographic data available for the Gulf of Taranto, in combination with Vertical Land Movements and sea-level rise trends, were considered by assessing the local evolution of the coastal trend as well as the future marine submersion. Based on the predicted spatial and temporal coastal changes, a new predictive model of submersion was developed to support coastal management in sea-level rise conditions over the next decades. After that, a multi-temporal mathematical model of coastal submersion was implemented in a Matlab environment. Finally, the effects of the relative sea-level rise on the coastal surface prone to submersion, according to the Intergovernmental Panel on Climate Change Assessment Reports (AR) 5 Representative Concentration Pathways (RCP) 2.6 and RCP 8.5 scenarios, were evaluated up to 2100.

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Section: Tectonics and Isostasymentioning

confidence: 94%

Sea-Level Rise and Shoreline Changes Along an Open Sandy Coast: Case Study of Gulf of Taranto, Italy

Scardino

Sabatier

Scicchitano

et al. 2020

Water

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“…Field investigations are then performed in these areas to determine the severity of the hazard and the level of risk [77]. Therefore, the continuous monitoring of ground deformation at regional or national scales is now possible using Sentinel-1, coupling the short revisiting time, the wide-scale mapping capability, the regularity of acquisitions, the free data access, and the available computing methodologies (e.g., [78,79]). Recently, Norway has launched the first free and open, nationwide ground motion service [80] which is updated yearly.…”

Section: Discussionmentioning

confidence: 99%

The Need for a Standardized Methodology for Quantitative Assessment of Natural and Anthropogenic Land Subsidence: The Agosta (Italy) Gas Field Case

Comerci

Vittori

2019

Remote Sensing

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In the last years, the advanced synthetic aperture radar (SAR) interferometry (InSAR) has proven its effectiveness in the assessment of ground gotion with millimetric accuracy. Its integrated use with traditional (in-situ) topographic height determination techniques, such as geometric leveling and Global Navigation Satellite System (GNSS), is consolidated in underground fluids extraction areas for detecting and monitoring land subsidence. Nevertheless, the lack of a specific standardized methodology does not allow for evaluating different results obtained from different types of analysis. Starting from the description of two independent estimations of land subsidence in the Agosta (Comacchio, Italy) area, where an environmental impact assessment procedure was carried out following a request for gas exploitation, this paper points out the need for a standardized methodology, focused on the in-situ calibration of InSAR data. This last purpose requires an adequately dense and homogeneous reference GNSS network. The in progress initiatives, at European and national level, aiming at providing a Copernicus Ground Motion service could offer the opportunity to structure a reliable and dedicated GNSS network, starting from the large amount of stations run by different institutions already existing in Italy.

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“…Vertical land movements result from a combination of slow geological processes such as tectonic activity and glacial isostatic adjustment (Peltier 2004;Peltier et al 2015), and medium-term phenomena, such as sediment loading and soil compaction (Carminati and Martinelli 2002;Lambeck and Purcell 2005). The latter can greatly oversize geological processes at local scale (Wöppelmann and Marcos 2012); in particular, faster subsidence occurs in presence of intense anthropogenic activities such as water withdrawal and natural gas extraction (Teatini et al 2006;Polcari et al 2018). Most of the peninsula shows a slow subsiding trend, although with some local variability.…”

Section: Vertical Land Movementmentioning

confidence: 99%

“…The North Adriatic coastal plain shows the most intense long-term geological subsidence rates (about 1 mm per year), increasing North to South. Yet in the last decades these rates were often greatly exceeded by ground compaction rates observed by multi-temporal SAR Interferometry (Gambolati et al 1998;Antonioli et al 2017;Polcari et al 2018;Solari et al 2018). Observed subsidence is about one order of magnitude faster where the aquifer system has been extensively exploited for agricultural, industrial and civil use since the post-war industrial boom,.…”

Section: Vertical Land Movementmentioning

confidence: 99%

Cost-benefit analysis of coastal flood defence measures in the North Adriatic Sea

Amadio¹,

Essenfelder²,

Bagli³

et al. 2021

Preprint

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Abstract. The combined effect of global sea level rise and local subsidence phenomena poses a major threat to coastal settlements. Flooding events are expected to grow in frequency and magnitude, increasing the potential economic losses and costs of adaptation. In Italy, a large share of the population and economic activities are located along the coast of the peninsula, although risk of inundation is not uniformly distributed. The low-lying coastal plain of Northeast Italy is the most sensitive to relative sea level changes. Over the last half a century, the entire north-eastern Italian coast has experienced a significant rise in relative sea level, the main component of which was land subsidence. In the forthcoming decades, sea level rise is expected to become the first driver of coastal inundation hazard. We propose an assessment of flood hazard and risk linked with extreme sea level scenarios, both under historical conditions and sea level rise projections at 2050 and 2100. We run a hydrodynamic inundation model on two pilot sites located in the North Adriatic Sea along the Emilia-Romagna coast: Rimini and Cesenatico. Here, we compare alternative risk scenarios accounting for the effect of planned and hypothetical seaside renovation projects against the historical baseline. We apply a flood damage model developed for Italy to estimate the potential economic damage linked to flood scenarios and we calculate the change in expected annual damage according to changes in the relative sea level. Finally, damage reduction benefits are evaluated by means of cost-benefit analysis. Results suggest an overall profitability of the investigated projects over time, with increasing benefits due to increased probability of intense flooding in the next future.

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InSAR Monitoring of Italian Coastline Revealing Natural and Anthropogenic Ground Deformation Phenomena and Future Perspectives

Cited by 23 publications

References 34 publications

Sea-Level Rise and Shoreline Changes Along an Open Sandy Coast: Case Study of Gulf of Taranto, Italy

Sea-Level Rise and Shoreline Changes Along an Open Sandy Coast: Case Study of Gulf of Taranto, Italy

The Need for a Standardized Methodology for Quantitative Assessment of Natural and Anthropogenic Land Subsidence: The Agosta (Italy) Gas Field Case

Cost-benefit analysis of coastal flood defence measures in the North Adriatic Sea

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