Coast Capture WA—Western Australia marine data acquisition

Request No. DOT410423—Request for Expressions of Interest for the Provision of Services for the Coast Capture WA Program – data acquisition of the Western Australian Coastline

The Western Australian Department of Transport’s (DoT) Coastal Information (CI) Branch is coordinating a state-wide location-data-capture program. Referred to as Coast Capture WA it aims to support the CoastWA programby collecting information to service multiple maritime functions.

Coast Capture WA is a three stage program. Stage 1 began in 2023 and focused on capturing the Southern and Gascoyne coastlines. Stages 2 and 3 are the focus of the EOI and will be implemented over a period of four years for the remaining WA coastline.

Data acquisition requirements of Coast Capture WA

To deliver Stages 2 and 3 bathymetric LiDAR, topographic LIDAR, and aerial imagery surveys will be conducted. They capture 3D data including coastal landform (topographic and aerial imagery) and seabed elevations (bathymetric). The data collected allows an accurate point cloud of locations from which detailed ground models can be created. Coupled with imagery this gives users a highly accurate and precise base from which to map.

What this means

Bathymetric LiDAR is like an underwater laser scanner that captures highly accurate point clouds of subsea surfaces. These data points allow users to create detailed underwater surface models with precision.

Topographic LiDAR collects point clouds on land surfaces (e.g. features like buildings, trees, and hills). The data points are used to create ground surface models in digital form.

Aerial imagery involves capturing digital photographs from above. The images provide context and detail to the LiDar data.

The use of LiDAR data provides an efficient and cost-effective way to generate accurate coastal digital elevation models (DEMs). DEM datasets derived from stereo aerial imagery are used to generate imagery mosaics for a range of applications.

What the Coast Capture WA data is used for

These Coast Capture WA data products are used for analysis and modelling. These will help develop a better understanding of potential social, environmental, and economic exposure, vulnerability, and impacts. The capture of this data and delivery of the derived products will be critical to better understand coastal hazards and their impacts.

The Coast Capture WA data will be used to inform climate change mitigation or hazard management.  The data will be leveraged to create and update coastal erosion, storm surge, flooding, tsunami, and wind impact (storm and cyclone) modelling and investigative studies.

The information will assist in defining hazard-prone areas along the coastline. Areas that may pose a threat to the diverse set of social, natural, and cultural assets. This includes inland regions that are subject to flooding by estuarine systems connected to the coast.

Getting help with the EOI process

This EOI is the first stage of a multi-stage process to select two or more contractors for an initial period of two years. There are options to extend for up to a further two years. The Coast Capture WA EOI process is anticipated to result in a shortlist of suppliers that will be invited to submit proposals in response to RFP’s issued annually.

The EOI closes on 20 May, 2024. Madrigal Communications is able to assist agencies with their proposals. We have experience in the mapping sector and in scientific and technical writing.