A Rational Theory for Barrier-Lagoon Development

Oertel, George F.; Krafi, J. Chris; Kearney, Michael; Woo, Han Jun

doi:10.2110/pec.92.48.0077

Cited by 31 publications

(12 citation statements)

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“…The highly significant reduction of the tidal flat height to almost zero (0.1 m) indicates that under these conditions, the tidal basin may degenerate in to a tidal lagoon. A similar response is described in the final stage of the basin-inundation model of Oertel et al (1992). A good example of the occurrence of this phenomenon in nature is the Holocene evolution of the North Sea coastal plain described by Beets and Van der Speck (2000).…”

Section: (C) Flat Area and Height In The Basinmentioning

confidence: 58%

The morphological response of large tidal inlet/basin systems to relative sea level rise

2012

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The morphodynamic response of large tidal inlet/basin systems to future relative sea level rise (RSLR), incorporating both Eustatic sea level rise and local land subsidence effects, is qualitatively investigated using the state-of-the-art Delft3D numerical model and the Realistic analogue modelling philosophy. The modelling approach is implemented on a highly schematised morphology representing a typical large inlet/basin system located on the Dutch Wadden Sea (Ameland Inlet) over a 110-year study period. Three different RSLR Scenarios are considered: (a) No RSLR, (b) IPCC lower sea level rise (SLR) projection (0.2 m SLR by 2100 compared to 1990) and land subsidence, and (c) IPCC higher SLR projection (0.7 m SLR by 2100 compared to 1990) and land subsidence. Model results indicate that, for the 110-year study duration, the existing flood dominance of the system will increase with increasing rates of RSLR causing the ebb-tidal delta to erode and the basin to accrete. The rates of erosion/accretion are positively correlated with the rate of RSLR. Under the No RSLR condition, the tidal flats continue to develop while under the high RSLR scenario tidal flats eventually drown, implying that under this condition the system may degenerate into a tidal lagoon within the next 110 years. The tidal flats are stable under the low RSLR scenario implying that, at least for the next 100 years, this may be the critical RSLR condition for the maintenance of the system. Essentially the results of this study indicate that, as the Eustatic SLR is likely to be greater than the apparently critical rise of 0.2 m (by 2100 compared to 1990), the tidal flats in these systems will at least diminish. In Deltares, PO Box 177, 2600 MH Delft, the Netherlands the worst, but not unlikely, scenario that the Eustatic SLR is as high as the IPCC higher projections (0.7 m by 2100), the tidal flats may completely disappear. In either case, the associated environmental and socio-economic impacts will be massive. Therefore, more research focusing on the quantification of the physical and socio-economic impacts of RSLR on these systems is urgently needed to enable the development of effective and timely adaptation strategies.

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Section: (C) Flat Area and Height In The Basinmentioning

confidence: 58%

The morphological response of large tidal inlet/basin systems to relative sea level rise

2012

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“…Today, lagoons constitute around 6400 km 2 of the Mediterranean coastline(Cataudella et al, 2015), but their surface areas were even more significant in Antiquity. In fact, due to base-level sedimentary inputs, most have been totally or partially infilled(Boyd et al, 1992;Oertel et al, 1992; Nichols and Boon, 1994; Duck and Figueiredo Da Silva, 2012). This phenomenon is particularly evident on the Kuban Delta where various authors have reconstructed the transformation of the former Taman archipelago into a peninsula, shaped by the progressive infilling of the former Bosphorus channels linking the Black and the Azov Seas (Brückner et al, 2010; Kelterbaum et al, 2011; Fouache et al, 2012; Giaime et al, 2014 and 2016; Figure 13).…”

mentioning

confidence: 99%

Evolution of ancient harbours in deltaic contexts: A geoarchaeological typology

Giaime

Marriner

Morhange

2019

Earth-Science Reviews

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“…The highly significant reduction of the tidal flat height to almost zero (0.1 m) indicates that under these conditions, the tidal basin may degenerate into a tidal lagoon. A similar response is described in the final stage of the basin-inundation model of Oertel et al (1992). A good example of the occurrence of this phenomenon in nature is the Holocene evolution of the North Sea coastal plain described by Beets and Van der Speck (2000).…”

Section: (B) Channel and Tidal Flat Volume In The Basinmentioning

confidence: 58%

Modelling Morphological Response of Large Tidal Inlet Systems to Sea Level Rise

Dissanayake¹

2011

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A Rational Theory for Barrier-Lagoon Development

Cited by 31 publications

References 0 publications

The morphological response of large tidal inlet/basin systems to relative sea level rise

The morphological response of large tidal inlet/basin systems to relative sea level rise

Evolution of ancient harbours in deltaic contexts: A geoarchaeological typology

Modelling Morphological Response of Large Tidal Inlet Systems to Sea Level Rise

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