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Card 390 of 9812026-09-22 issue

Observed arrival · 2026-09-22

Isobath: Measuring the Shape of the Seabed

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Editorial interest 84/100 Selection signal · not a rating of the site

A Chinese-language publication about hydrographic surveying, covering single-beam and multibeam sonar, acoustic principles, and the processing of bathymetric data.

Landing page captured for the 2026-09-22 issue.
For
Readers curious about seabed mapping and hydrographic surveying
Worth noticing
Two hands-on demos show depth readings and the gaps between four elevation reference surfaces.

Field notes

The project uses a small editorial structure—articles, topic columns, and interactive demonstrations—to explain hydrographic surveying rather than presenting it as a glossary alone. Its examples move from a single depth profile to the distinction between reference surfaces, while the listed articles address multibeam fan width, single-beam line coverage, and grid corrections. The homepage identifies the project as Chinese-language and records an update on 2026-09-21.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use

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The Approximate Buildings of Mississauga

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isobath.xyz

Landing page observed 2026-09-22. The live site may have changed.