Data were collected for the Cowichan Estuary as part of a broader project to
better understand and explore ecological and coastal flood risks along the CVRD
coast. There are two key deliverables – GIS data and an interactive 3D visual
platform – and a third additional web-based mapping tool.
GIS data were collected using a UAV and terrestrial GPS unit, and processed
using Agisoft Photoscan Pro. We have referenced data to WGS84 – the
standard global mapping datum. This enables the data we produced to be easily
integrated into web-based mapping platforms. We have provided data in three
formats –point cloud (.LAS), Digital Elevation Model (.TIF) and orthmosaic (.TIF).
Point clouds provide a detailed, georeferenced, 3D platform for assessing the
estuary, while the Digital Elevation Model and orthomosiac allows points in 3D
space to be represented on a 2D mapping interface.
We have provided several interactive, web-based and annotated 3D models built
to scale. These models serve to provide interactive content for communicating the
importance of the estuary and as a preview for an interactive, detailed model of
the entire estuary where users will be able to control water levels to visualize
changing tidal and flood conditions (read more).