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MapFan DB Display Map Database

Contour line data

Polyline data of contour lines covering the entire country.
By displaying it as a background map, you can visually understand the terrain, and it can also be used for risk assessment of flood damage and landslides, consideration of disaster prevention plans, and creation of hazard maps.

Data Details

Contour data representing the topography of Japan as a whole

Contour data representing the topography of Japan as a whole

  • Contour interval
    Wide-area maps: Maps are recorded at intervals of 50m to 10m
    Detailed map: Maps are recorded at 5m intervals
  • By displaying terrain as a background on a map, it can be visually represented. Representing changes in elevation with lines makes it easier to understand slopes and undulations, and can be used for disaster risk assessment, route planning, urban planning, and more.
    *This is optional data to be used in conjunction with the "Detailed Map".

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Expected usage

  • Displaying contour lines on a map allows for a visual representation of terrain topography, including undulations and slopes. This is useful for understanding areas with elevation differences and recognizing mountainous and hilly terrain.

  • This information can be used as foundational data for risk assessment of river flooding, tsunami-induced inundation damage, landslides, and other disasters, as well as for creating hazard maps.

  • It can also be used in urban planning, land use planning, and infrastructure development studies that take topographical conditions into consideration.

FAQ

What can this contour data be used for?

By displaying it on a map, you can visualize the terrain, and it can also be used for risk assessment of natural disasters
(Example: Flood and sediment disaster) that are easily affected by the terrain, and for hazard mapping.

How often is the contour data updated?

We update this once a year.

How can contour data collected at different scales be used?

Depending on the displayed scale, contour lines with appropriate intervals (wide-area/detailed) are switched and displayed accordingly.
It allows for both high visibility and accuracy in map representation.

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