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Coastal Risk & Erosion$39
Coastal Erosion Monitoring
Coastal erosion threatens infrastructure, ecosystems, and livelihoods on every inhabited continent, yet globally consistent, high-cadence monitoring remains elusive.
Category
Coastal Risk & Erosion
Format
PDF Report
Delivery
Digital download after purchase
Price
$39
Summary
Coastal erosion threatens infrastructure, ecosystems, and livelihoods on every inhabited continent, yet globally consistent, high-cadence monitoring remains elusive. This study presents a multi-temporal shoreline change analysis spanning eight geomorphologically diverse sites distributed across five Köppen–Geiger climate zones, using Sentinel-2 Level-2A imagery acquired between 2017 and 2024. Shoreline positions were extracted by computing the Modified Normalised Difference Water Index (MNDWI) from green and short-wave infrared bands, applying Otsu’s adaptive threshold, and performing sub-pixel contour interpolation at the land–water boundary. Tidal corrections were applied using the FES2014 ocean tide model coupled with locally calibrated beach-slope proxies to reduce the horizontal positional uncertainty introduced by tidal stage variation.
What the report covers
Coastal erosion threatens infrastructure, ecosystems, and livelihoods on every inhabited continent, yet globally consistent, high-cadence monitoring remains elusive.
This study presents a multi-temporal shoreline change analysis spanning eight geomorphologically diverse sites distributed across five Köppen–Geiger climate zones, using Sentinel-2 Level-2A imagery acquired between 2017 and 2024.
Shoreline positions were extracted by computing the Modified Normalised Difference Water Index (MNDWI) from green and short-wave infrared bands, applying Otsu’s adaptive threshold, and performing sub-pixel contour interpolation at the land–water boundary.
Why it matters
Shoreline change intelligence supports resilience planning, asset exposure assessment, and coastal risk prioritization.
Intended sectors and users
InsuranceCoastal resilienceGovernmentInfrastructure
Methodology framing
The report is framed around Sentinel-2, using the methods described in the source abstract and paper title.
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Applications and use cases
Erosion monitoring
Risk mapping
Coastal change analysis
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