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Psuty, N.P.; Ames, K.; Liu, G., and Habeck, A., 2020. Interactive geomorphological resilience of sediment pathways and coastal features, post-Hurricane Sandy, Fort Tilden, New York. Journal of Coastal Research, 36(4), 694–708. Coconut Creek (Florida), ISSN 0749-0208. Geomorphological resilience is an essential concept in dynamic coastal systems, incorporating the recovery and regeneration of the dune/beach system and the interaction between these systems, anthropogenic forces, and ecological factors. Recovery of the coastal geomorphological system at the Fort Tilden site after Hurricane Sandy was influenced by the wooden bulkhead and the variety of groins interacting with the sediment budget. Monitoring of the recovery revealed that the alongshore coastal dune/beach system response (one-dimensional, two-dimensional, and three-dimensional metrics) was strongly related to the 11 groin sectors and that the total volume losses increased downdrift. Hurricane Sandy resulted in a general inland displacement of the dune feature along the entire site, mean of –32 m, and a landward displacement of the shoreline, mean of –3 m. There was a volumetric loss of 81,000 m3; 29,000 m3 of this was from the dune feature. Post-Sandy to Fall 2018, the dune was displaced 2 m seaward and had a volumetric gain of 10,580 m3. Comparison of the dune displacement and sediment budget metric indicated that through the six-year recovery period, the dune feature was accumulating sediment but that it was not shifting seaward to its former position despite updrift beach nourishment totaling ∼3,180,000 m3 in the period 2010–18. The inland displacement and retention of the beach-dune system under a negative sediment budget is consistent with geomorphological theory, indicating a geomorphological resilience to rebuild while shifting inland. Accordingly, the former position of Shore Road along Fort Tilden is deemed unsuitable for reconstruction in place because of increased exposure in the Post-Sandy environment. [ABSTRACT FROM AUTHOR]

The article discusses the contributions of Jim Allen as coastal geomorphologists at the U.S. National Park Service. Allen devoted his career in scientific inquiry, evaluation of management actions and activities, conservation of coastal national parks' heritage. He is considered as an expert in causes and forecasts of shoreline change, beach/dune dynamics, historical alterations, coastal habitat and evolution of geographical information system. His efforts have tremendous impact on coastal parks in the eastern U.S.

Examines the eolian transport triggered by beach nourishments in Riells, Spain. Geomorphological impacts associated with eolian processes; Sediment mobilization within the nourishment area; Coastal sedimentation.

Studies the Holocene sedimentation and sea level rise in the Sado estuary in Portugal. General geomorphologic developmental history of the Sado estuary; Features of cores along the southern margin of the estuary; General characteristics of the sediment types; Results from carbon dating.

Tróia peninsula, located on the western coast of Portugal, is undergoing tourism development, including construction of a marina. The marina basin was created by dredging a coastal stretch on the northern terminus of the peninsula on the estuarine side, making available beach-quality sediment for nourishment. A study was carried out to identify potential applications and opportunities to place the dredged sand in a beneficial manner. Many variables were considered in the study design in incorporating pre-project beach profile surveys and sediment sampling. Beach-fill design and placement procedures were proposed according to the purpose and constraints of the particular site, while recognizing the implications of the nourishment in a regional sediment management context. Between October 2006 and March 2007, 286,000 m3 of sand was placed along four beach sectors with a total alongshore extent of 1,700 m in the vicinity of the new marina and the Tróia Roman Ruins archeological site. The emplacements included dune, beach berm, and beach face nourishment, providing restoration of beaches and dunes and also increased buffering capacity in an area of damage to cultural resources of the peninsula. A monitoring program was deployed to assess performance and impacts of the nourishment on adjacent areas, and to identify problems and their causes. The surveys of August 2007 indicate that a significant part of the emplaced sand had been mobilized alongshore promoting the spreading of the fill material to down-drift areas while inducing a general reduction in the beach face slope, and attaining a more natural beach profile. [ABSTRACT FROM AUTHOR]

Barrier islands provide a host of critical ecosystem services to heavily populated coastal regions of the world, yet they are quite vulnerable to ongoing sea level rise and a potential increase in the frequency and intensity of oceanic storms. These islands are being degraded at an alarming rate, in part because of anthropogenic attempts at stabilization. In this article, we outline a possible sustainability strategy that incorporates the natural degree of substrate instability on these sedimentary landscapes. We recommend placing the focus for managing barrier islands on maintaining ecosystem function and process development rather than emphasizing barrier islands as structural impediments to wave and storm energy. [ABSTRACT FROM AUTHOR]

Silveira, T.M., Carapuço, A.M., Sousa, H., Taborda, R., Psuty, N.P., Andrade, C. and Freitas, C., 2013. Optimizing beach topographic field surveys: matching the effort with the objectives In any study design, the surveying approach should match the objectives, thereby limiting the effort to focus on the purpose of the inquiry. Often, in beach geomorphological research, study design is based on expert judgment, that does not assure the optimization of the field surveys. In this study, several dimensions of survey strategies were evaluated to compare the outcomes and uncertainties associated with field data collection. The objective of this work is to assess the accuracy of the derived volumes achieved by different survey strategies, including cross- and alongshore lines, with varying density and spatial distribution, to optimize the field survey effort. A number of survey strategies are simulated, covering a range of data resolutions and configurations, replicating a number of possibilities for field data gathering. Topographical data from different field surveying approaches were analyzed for a 4 km long coastal stretch in Portugal. Measures of beach volume were computed from cross-shore as well as alongshore information, and the errors associated with each approach evaluated. Results show that beach volume varies with the adopted survey strategy. As an example, beach volume change can be adequately portrayed and survey effort minimized either through the surveying of 3 alongshore lines, or through 200 m spacing beach profiling. This work highlights the importance of the study design in beach contexts because of its inevitable influence on the results of volumetric change analyses. [ABSTRACT FROM AUTHOR]

Spatial variations in sedimentation during individual tidal cycles were investigated using filter paper traps. The mean mass of sediment deposited in each tidal cycle was higher at the levee edge than at the inner marsh. The mass of sediment decreased with distance from the head of the estuary. There were weak relationships between tidal regime and sediment accumulation. Spatial variations of annual accretion rates were investigated with marker plots. The annual accretion rate at the inner marsh was higher (1.5 to 3.5 cm/y) than that at the tidal river levee edge (0.8 to 3.0 cm/y). Total suspended sediment (TSS) concentrations in the tidal water column indicated that the accretion rate was affected by vegetation. TSS concentrations in the water column leaving the vegetation cover during ebb tidal flows dramatically decreased. There were strong relationships between the concentration of suspended load and accretion rate. The spatial pattern of sedimentation processes at different timescales was mostly due to erosion of the levee edge by tidal flow. The major findings are: (1) The spatial patterns of sedimentation processes at various timescales are different, (2) vertical accretion rates ranged from 0.9 cm/y to 3.5 cm/y, (3) the study area has a depositional regime over the timescale of the present data, (4) the mean and minimum deposition rates in the study area are higher than other cited systems, and (5) the high accretion rate of this area is related to human-induced environmental change, and the sedimentation trajectory is now evolving to a new equilibrium. [ABSTRACT FROM AUTHOR]