Wairarapa

CA_NoCAL_Wildfires_B1_2018

This site is in no way affiliated with any government entity and is purely for demonstration purposes only.

Data derived from USGS 3DEP point clouds at https://registry.opendata.aws/usgs-lidar/ Elevation visualizations in this viewer are derived from only vaild USGS LiDAR scans. Point Cloud scans are developed into:

  • 1m TIN Surfaces (DEM)
  • 1m DSM Surfaces
  • 1m TIN Hillshade Surfaces
  • 1m DSM Hillshade Surfaces

A derived grid is also provided containing basic information for the point cloud. This information includes:

  • Native Projection
  • Point Cloud S3 Location
  • Boundary Information
  • Point Count

Site Usage:

  • Select a layer from the control in the top right of the map window
  • Click on the layers in the map to obtain information.

Information is dispalyed for the layers active in the viewer. *Only information for surfaces and grid is shown

Basic Layer Information and Links

WESM Grid

Regular grid of individual point cloud boundaries. Each point cloud from USGS is queried to capture boundaries, point count, file location on S3, and projection information

GPKG:

Vector Tiles XYZ:

1m TIN Elevation Model

This map represents the base elevation derived from LiDAR points. Tree tops, houses, and other objects on the land are removed using a Triangular Irregular Network (TIN) model, revealing an idea of land elevation. A TIN is a representation of a continuous surface consisting entirely of triangular facets (a triangle mesh), used mainly as Discrete Global Grid in primary elevation modeling

TIN COG S3:

TIN COG HTTP:

1m DSM Model

This map represents the elevation of all things on the surface derived from LiDAR points. In this map, one can make out where tree tops, houses, and other surface objects might be.

DSM COG S3:

DSM COG HTTP:

Hillshades

Shaded relief, or hillshading, is a technique where a lighting effect is added to a map based on elevation variations within the landscape. It provides a clearer picture of the topography by mimicing the sun’s effects (illumination, shading and shadows) on hills and canyons.

TIN Hillshade COG S3:

DSM Hillshade COG S3:

TIN Hillshade COG HTTP:

DSM Hillshade COG HTTP:

Connection Help

Useful tutorials for setting up and using data hosted on this site in QGIS and on the web

S3 COG and Vector Tile Connections in GIS editor

COGs in QGISVector Tiles in QGIS

S3 COG and Vector Tile Connections in Web Application

COGsVector Tiles

Github

Repository for WESM Surface Production WESM Surfaces

Repository for WESM Grid Production WESM Grids

For further information:

Contact: ian at xycarto.com