Grain Size and Beach Face Slope on Paraglacial Beaches of New England, USA

Woodruff, Jonathan D.; Venti, Nicholas L.; Mabee, Stephen B.; DiTroia, Alycia; Beach, Douglas F.

doi:10.31223/x55k5q

Cited by 4 publications

(5 citation statements)

References 74 publications

(117 reference statements)

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“…Externally derived marine sediment supplying the North and South River estuaries implies that coastal and nearshore sediment supply and erosion rates influence marsh accumulation. In New England, surficial sediment sources in coastal and nearshore regions are primarily glacial‐fluvial and glacial‐lacustrine deposits (e.g., Woodruff et al., 2021). In the case of the North and South Rivers, adjacent shoreline recession (Theiler et al., 2013) and the rapid erosion of Fourth Cliff (Figure 1; U.S. Air Force, 2014) are potentially significant sediment sources.…”

Section: Discussionmentioning

confidence: 99%

“…Sediment sourcing and delivery mechanisms are especially uncertain in mesotidal marshes in the New England region of the northeastern United States marshes given the heterogeneity of the region's post‐glacial coastline (e.g., FitzGerald & van Heteren, 1999; Woodruff et al., 2021) and the substantial history of human impacts, including damming, deforestation (e.g., Foster & Motzkin, 2003), and coastal construction (e.g., groins, jetties, bulkheads, and revetments). Here, we define the mesotidal New England coast as the northern shore of Cape Cod through Maine‐Canada border.…”

Section: Introductionmentioning

confidence: 99%

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Sources, Mechanisms, and Timescales of Sediment Delivery to a New England Salt Marsh

et al. 2022

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Tidal salt marshes are critical protectors of the coast; they buffer against erosion and flooding (Möller et al., 2014), sequester carbon (Chmura et al., 2003), provide habitat to juvenile species and migratory birds (Boesch & Turner, 1984;Hughes, 2004), and filter pollutants and excess nutrients (Sousa et al., 2010). Coastal wetland maintenance involves complex biophysical feedbacks between clastic (i.e., inorganic) sediment supply, nutrients, plant growth, and flooding (Deegan et al., 2012;Kirwan & Megonigal, 2013). Deposition of clastic sediment in the form of clays, silts, and sands allows marshes to accrete faster than would be possible via in-situ organic production alone; thus, the availability and delivery of clastic sediment is a key factor in determining salt marsh resilience to erosion and future sea level rise (e.g.,

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sources, Mechanisms, and Timescales of Sediment Delivery to a New England Salt Marsh

et al. 2022

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“…In 1898, a strong late November storm cut a new inlet through the barrier beach that previously connected two eroding drumlin headlands known as Third Cliff and Fourth Cliff. These headlands serve as predominant sources of sediment to the Scituate/Marshfield regional beach complex (Woodruff et al., 2021). Subsequently named “The Portland Gale of 1898” after the tragic sinking of the steamship SS Portland during the storm, the 1898 Portland Gale remains among the top 10 coastal floods of record in the region (Talke et al., 2018).…”

Section: Site Descriptionmentioning

confidence: 99%

Salt Marsh Response to Inlet Switch‐Induced Increases in Tidal Inundation

et al. 2022

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Salt marshes aggrade in quasi-equilibrium with sea level rise (SLR) via the accumulation of organic matter and mineral sediment, thereby maintaining marsh platform elevation within the tidal frame (e.g., Allen, 2000;Cahoon et al., 2019). External perturbations, such as an acceleration of relative SLR, can be compensated for by increased sediment delivery to the marsh platform. Increased inundation depth tends to augment sediment delivery as the associated longer flood duration increases time to trap suspended sediment (Day et al., 1999;Reed, 1990;Temmerman et al., 2003). In some cases, increased suspended sediment concentrations associated with land clearance has allowed marshes to recover from rapid SLR (Peck et al., 2020;Watson, 2004). In addition to increased mineral sediment delivery, there is some evidence that bioproductivity of low marsh grasses may increase with moderate increases in inundation, with subsequent vegetation drowning at higher levels of inundation (Morris et al., 2002;Voss et al., 2013). However, many studies have found declining biomass with increased

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“…For example, Hurricane Sandy in 2012 induced storm surge heights up to one meter above normal tide levels in New Hampshire [65]. This meso-tidal coast shows a semidiurnal tidal regime of two unequal high and low tides every day [63,66].…”

Section: Study Areasmentioning

confidence: 99%

End Point Rate Tool for QGIS (EPR4Q): Validation Using DSAS and AMBUR

Lima

Fernández-Fernández

Espinoza

et al. 2021

IJGI

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This paper presents the validation of the End Point Rate (EPR) tool for QGIS (EPR4Q), a tool built-in QGIS graphical modeler for calculating the shoreline change with the end point rate method. The EPR4Q tries to fill the gaps in user-friendly and free open-source tools for shoreline analysis in a geographic information system environment since the most used software—Digital Shoreline Analysis System (DSAS)—although being a free extension, it is created for commercial software. Additionally, the best free, open-source option to calculate EPR is called Analyzing Moving Boundaries Using R (AMBUR); since it is a robust and powerful tool, the complexity can restrict the accessibility and simple usage. The validation methodology consists of applying the EPR4Q, DSAS, and AMBUR with different types of shorelines found in nature, extracted from the US Geological Survey Open-File. The obtained results of each tool were compared with Pearson’s correlation coefficient. The validation results indicate that the EPR4Q tool acquired high correlation values with DSAS and AMBUR, reaching a coefficient of 0.98 to 1.00 on linear, extensive, and non-extensive shorelines, proving that the EPR4Q tool is ready to be freely used by the academic, scientific, engineering, and coastal managers communities worldwide.

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Grain Size and Beach Face Slope on Paraglacial Beaches of New England, USA

Cited by 4 publications

References 74 publications

Sources, Mechanisms, and Timescales of Sediment Delivery to a New England Salt Marsh

Sources, Mechanisms, and Timescales of Sediment Delivery to a New England Salt Marsh

Salt Marsh Response to Inlet Switch‐Induced Increases in Tidal Inundation

End Point Rate Tool for QGIS (EPR4Q): Validation Using DSAS and AMBUR

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