New Zealand Coastal Elevation Models at 1-Meter Resolution

Publicly owned coastal digital elevation models for New Zealand, covering the seabed down to approximately 25 meters in depth. The data consists of nationally consistent 1-meter resolution tiles derived from LiDAR surveys, provided as Cloud Optimised GeoTIFFs with STAC metadata. It is published by Toitū Te Whenua Land Information New Zealand under a CC-BY-4.0 license.

Use Cases

• Model coastal inundation and sea-level rise impacts based on high-resolution bare earth elevation data.
• Analyze seabed morphology and nearshore bathymetry based on data extending to 25-meter depths.
• Conduct regional coastal zone planning and management based on data organized by region and survey.
• Perform change detection and monitoring using consistent, tiled elevation data derived from LiDAR.

Strengths

• Data is provided at a high 1-meter spatial resolution.
• Coverage includes the coastal zone and seabed down to approximately 25 meters.
• Files use Cloud Optimised GeoTIFF (COG) format with LERC compression for efficient access.
• Includes STAC metadata for standardized discovery and interoperability.

Limitations

• Row count and total dataset size are unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Toitū Te Whenua Land Information New Zealand

Collection Method

Derived from LiDAR surveys.

Time Range

null

Freshness

Last update date is unknown.

Geography

New Zealand coastal zone.