# Satellite shoreline method maps tides at beach scale

_Sunday, August 30, 2026 at 3:00 PM EDT · Science, Infrastructure · Latest · Tier 2 — Notable_

![Satellite shoreline method maps tides at beach scale — Primary](https://scx2.b-cdn.net/gfx/news/hires/2026/tides-can-be-mapped-mu.jpg)

Researchers at DTU Space and partner institutions reported a method that uses more than 40 years of U.S. Landsat coastline images to map tidal variation at a more local scale. The approach tracks the land-water boundary across thousands of images and combines it with beach-slope information to calculate water-level changes. The team says the data can verify and improve tidal models, including along coastlines with few gauges, and could help distinguish tidal movement from longer-term shoreline change.

## Sources

- [Phys.org](https://phys.org/news/2026-08-tides-locally-method-based-satellite.html)

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