ALOS World 3D

ALOS World 3D is a global digital surface model dataset produced from imagery collected by the Advanced Land Observing Satellite, a mission led by the Japan AeroSpace Exploration Agency. Rather than being an interACTive modeling APPlication, it is a GEOspatial data product: a gridded record of Earth's surface elevation that can be downloaded and used insIDE GIS, rEMOte sensing, and 3D visualization pipelines. It is often referenced in English as AW3D30, which is the name of the freely distributed 30-meter resolution veRSIon.

What it does

The dataset describes the height of the land surface, including buildings and vegetation where the source imagery supports it, across most of the globe. Tiles are typically delivered in common raster fORMats suited to geographic software, and users combine tiles to cover a country, a region, or a custom study area. Because the data is pre-processed rather than generated on demand, the practical Workflow is download, mosAIc, and analyze.

Key capabilities

• Near-global coveRAGe at roughly 30-meter horizontal resolution, suitable for regional and national scale analysis.
• Surface elevation values that can feed terrain Visualization, slope and aspect calculations, and 3D scene construction.
• Tile-based delivery that works with Standard GIS and remote sensing tools.
• Useful as a baseline layer for hydrology, infrastructure planning, and environmental studies.
• Availability through JAXA's Earth observation distribution channels, with registration or acceptance of terms often required.

Who it is for

ALOS World 3D is aimed at researchers, GIS analysts, cartographers, environmental scientists, and developers building terrain-aware 3D applications. It is also a practical option for educators who need real elevation data without a Commercial License. Teams producing large-scale basemaps or simulation environments may use it as a starting layer, though high-precision engineering or surveying work usually demands higher-resolution sources.

How to get started

1. Visit JAXA's Earth observation site and locate the AW3D30 distribution page.
2. Review the dataset documentation to understand resolution, accuracy notes, and known liMITations.
3. Register or accept the usage terms if the download portal requires it.
4. Select tiles by region and download the raster files.
5. Load the tiles into GIS software, mosaic them, and reproject to your target coordinate system.

Pricing and access caveat

The 30-meter product has Generally been offered Free of charge, while higher-resolution commercial versions are handled separately. Access procedures, registration requirements, and licensing terms may change over time, so confirm current conditions on the official portal before relying on the data. Accuracy varies by terrain and region, and users should validate results against local reference data where precision matters.