Shoreline accretion is the net landward expansion or seaward build-out of a coastline resulting from the accumulation of sediment, typically quantified through changes in shoreline position over time. As a research topic, it encompasses the analysis of sediment budgets, hydrodynamic forcing (waves, tides, currents), and morphological responses across various temporal and spatial scales. Studies of shoreline accretion employ field surveys, remote sensing, numerical modeling, and stratigraphic analysis to distinguish natural progradation from human-induced changes (e.g., coastal structures, nourishment). Understanding accretion dynamics is critical for coastal resilience assessment, habitat evolution, and management of sediment resources in the context of sea-level change and storm impacts.
Every winter, storms wipe out swaths of the picturesque Spanish coast, undoing summer reconstruction work and threatening the foundations of the country's vital tourism industry.
Environment
Apr 3, 2026
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125
Sandy beaches account for approximately a third of the world's ice-free coastlines. These sandy shorelines are responsible for sediment and water retention, provide a buffer against rising water levels, and offer habitats ...
Plants & Animals
Mar 16, 2026
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13
A new study using multidecade satellite imagery and face-to-face human interviews tracked the environmental and societal impacts of gravel mining in the Lubha River, Northeast Bangladesh. The researchers found that the river ...
Environment
Mar 12, 2026
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9
Southern California's beaches have grown more than 500 acres over the past four decades despite being one of the most heavily urbanized and dammed coastal regions in the world, according to a new study conducted by researchers ...
Earth Sciences
Feb 6, 2026
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53
Two new studies from researchers at UC San Diego's Scripps Institution of Oceanography provide encouraging news about California's beaches at both local and statewide scales.
Earth Sciences
Nov 17, 2025
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49
A Chinese rover that landed on Mars in 2021 detected evidence of underground beach deposits in an area thought to have once been the site of an ancient sea, providing further evidence that the planet long ago had a large ...
Astrobiology
Feb 24, 2025
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