Coastal marsh die-off and reduced attenuation of coastal floods: A model analysis

Temmerman, Stijn; Vries, Mindert de; Bouma, Tjeerd J.

doi:10.1016/j.gloplacha.2012.06.001

Cited by 93 publications

(64 citation statements)

References 33 publications

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“…Measured storm surges are implicitly included in the imposed measured water levels at the seaward boundary of the model domain (Fig. 1b) (similarly as in Temmerman et al, 2012), and assuming that additional wind and atmospheric pressure effects on water levels within the estuarine model domain are limited because of the limited fetch length and limited water depths in such a narrow and shallow estuarine setting. Two real storm surges were included in the boundary conditions and were used for model validation.…”

Section: Stormsmentioning

confidence: 99%

“…An increasing number of studies shows that these wetland ecosystems can reduce the height of storm surges due to their dense vegetation and the friction they exert on landward propagating flood waves (Costanza et al, 2008;Das and Vincent, 2009;Krauss et al, 2009;Wamsley et al, 2010;Gedan et al, 2011;Temmerman et al, 2012;Zhang et al, 2012; et al., 2015). Unfortunately these wetland ecosystems are and have been under a lot of pressure due to urban, agricultural and industrial expansion.…”

Section: Introductionmentioning

confidence: 99%

“…Lovelace, 1994;McGee et al, 2006;Krauss et al, 2009;Wamsley et al, 2010) and on hydrodynamic model simulations (e.g. Resio and Westerink, 2008;Loder et al, 2009;Wamsley et al, 2009Wamsley et al, , 2010Zhang et al, 2012;Temmerman et al, 2012;Sheng et al, 2012;Liu et al, 2013;Hu et al, 2015). These studies reported that peak water levels can be reduced by 5 to 50 cm km −1 when storm surges travel through tidal marshes or mangroves, causing flood wave energy loss due to increased bottom friction.…”

Section: Introductionmentioning

confidence: 99%

“…Model studies have demonstrated that the degree of within-wetland attenuation is dependent on wetland properties, such as the size, elevation and vegetation type (e.g. Loder et al, 2009;Wamsley et al, 2009Wamsley et al, , 2010Zhang et al, 2012;Temmerman et al, 2012;Sheng et al, 2012;Hu et al, 2015), as well as properties of the storm, such as the strength, duration, forward speed and track of the storm (e.g. Resio and Westerink, 2008;Loder et al, 2009;Wamsley et al, 2010;Sheng et al, 2012;Liu et al, 2013;Hu et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…With respect to the effect of wetland properties, rates of within-wetland attenuation were found to decrease with lower bottom friction (= less vegetation biomass) and with a higher bed elevation (e.g. Loder et al, 2009;Wamsley et al, 2009Wamsley et al, , 2010Temmerman et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Role of intertidal wetlands for tidal and storm tide attenuation along a confined estuary: a model study

Smolders

Plancke

Ides

et al. 2015

Nat. Hazards Earth Syst. Sci.

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Abstract. Coastal lowlands and estuaries are subjected to increasing flood risks during storm surges due to global and regional changes. Tidal wetlands are increasingly valued as effective natural buffers for storm surges by dissipating wave energy and providing flood water storage. While previous studies focused on flood wave attenuation within and behind wetlands, this study focuses on the effects of estuarine wetland properties on the attenuation of a storm tide that propagates along the length of an estuary. Wetland properties including elevation, surface area, and location within the estuary were investigated using a numerical model of the Scheldt estuary (Belgium, SW Netherlands). For a spring tide lower wetland elevations result in more attenuation of high water levels along the estuary, while for a higher storm tide higher elevations provide more attenuation compared to lower wetland elevations. For spring and storm tide a larger wetland surface area results in a better attenuation along the estuary up to a threshold wetland size for which larger wetlands do not further contribute to more attenuation. Finally a wetland of the same size and elevation, but located more upstream in the estuary, can store a larger proportion of the local flood volume and therefore has a larger attenuating effect on upstream high water levels. With this paper we aim to contribute towards a better understanding and wider implementation of ecosystem-based adaptation to increasing estuarine flood risks associated with storms.

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Section: Stormsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Role of intertidal wetlands for tidal and storm tide attenuation along a confined estuary: a model study

Smolders

Plancke

Ides

et al. 2015

Nat. Hazards Earth Syst. Sci.

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Scaling properties of tidal networks

Jiménez

Castanedo

Zhou

et al. 2014

Water Resources Research

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A new methodology is developed to extract tidal network from hydrodynamic conditions, and use data derived from numerical modeling or field observations to test the hypothesis that tidal networks are characterized by scale-invariant properties. Different tidal network configurations have been obtained from long-term numerical simulations in an idealized basin. These simulations show the influence of hydrodynamic conditions (tidal range, TR) and sediment (grain size sediment, D 50 ) on the final configuration of the network. One of the signatures of scale-invariant behavior is related to the presence of a power law relationship in the probability distribution of geometrical characteristics. For each model configuration and field site, the probability distribution of drainage area and the drainage volume has been calculated, and in both cases tidal networks show scale-invariant characteristics. After assessing the sensitivity of the results, an energy expenditure analysis shows that tidal basins evolve toward a state with less morphodynamic activity, with a lower energy expenditure compare with the initial state.

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Role of wind in erosion‐accretion cycles on an estuarine mudflat

et al. 2017

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Wind is an important regulator of coastal erosion and accretion processes that have significant ecological and engineering implications. Nevertheless, previous studies have mainly focused on storm‐generated changes in the bed level. This paper aims to improve the understanding of wind‐induced erosion‐accretion cycles on intertidal flats under normal (nonstormy) weather conditions using data that relates to the wave climate, near‐bed 3‐D flow velocity, suspended sediment concentration, and bed‐level changes on a mudflat at the Yangtze Delta front. The following parameters were calculated at 10 min intervals over 10 days: the wind wave orbital velocity (Ûδ), bed shear stress from combined current‐wave action, erosion flux, deposition flux, and predicted bed‐level change. The time series of measured and predicted bed‐level changes both show tidal cycles and a 10 day cycle. We attribute the tidal cycles of bed‐level changes to tidal dynamics, but we attribute the 10 day cycle of bed‐level changes to the interaction between wind speed/direction and neap‐spring cyclicity. We conclude that winds can significantly affect bed‐level changes in mudflats even during nonstormy weather and under macro‐mesotidal conditions and that the bed‐level changes can be predicted well using current‐wave‐sediment combined models.

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Coastal marsh die-off and reduced attenuation of coastal floods: A model analysis

Cited by 93 publications

References 33 publications

Role of intertidal wetlands for tidal and storm tide attenuation along a confined estuary: a model study

Role of intertidal wetlands for tidal and storm tide attenuation along a confined estuary: a model study

Scaling properties of tidal networks

Role of wind in erosion‐accretion cycles on an estuarine mudflat

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