All water data sources
FreeResearch InstituteGlobal

OSM Water Polygons

Coastline-derived water polygons

osmdata.openstreetmap.de

At a glance

Region
Global
Coverage
Oceans and seas polygons
Access
Free
Category
Research Institute
Last updated
2025

What's inside

  • Shapefiles
  • Water Polygons
  • Coastlines

What you can do with it

Typical work that data of this type supports.

  1. 01

    Sea-level planning

    Plan for sea-level rise and storm surge.

    Because it has: Coastlines

  2. 02

    Saline intrusion

    Track salt moving into rivers and aquifers.

  3. 03

    Ecosystems

    Monitor estuaries, mangroves and coastal water.

Where AI adds value

Ideas for machine learning and AI agents built on this kind of data.

  1. 01

    Surge forecasts

    Forecast surge and coastal water levels quickly.

  2. 02

    Shoreline change

    Detect erosion and accretion from imagery.

  3. 03

    Bloom alerts

    Predict harmful algal blooms from ocean conditions.

Find more water data

Search and compare 1,900+ water data sources by region, type and access.