Collection of Geoscience Australia's high-resolution elevation surveys collected using Light Detection and Ranging (LiDAR) and other instrument systems. <b>Value: </b>Describes Australia's landforms and seabed is crucial for addressing issues relating to the impacts of climate change, disaster management, water security, environmental management, urban planning and infrastructure design. <b>Scope: </b>Selected areas of interest around Australia.

This metadata file and associated files contain metadata for the Geoscience Australia Kakadu LiDAR project carried out in 2011. This metadata is for the Digital Elevation Model created as 1m grid generated from the LiDAR point data classified as ground. The grid was generated employing a point to TIN and TIN to grid point process with nearest neighbour interpolation. The DEM was generated in ESRI ArcGIS V10 format.

High resolution elevation data covering an area of approximately 12,600 sq km in the Wakool-Murray catchment area. The survey is situated along the Victoria and NSW border, located between Yarrawong, Echuca, Robinvale and Moulamein and Deniliquin. A set of products were produced including classified lidar point clouds, hydro-flattened bare earth DEMs, DSMs, Canopy Height Models (CHM) and Foliage Cover Models (FCM). The outputs of the project are compliant with National ICSM LiDAR Product Specifications and the NEDF.

AAMHatch has been engaged by Geoscience Australia to undertake a LiDAR survey over the BHMAR Phase 2 project area, for the purpose of producing a DTM and vegetation structure analysis. The survey covers an area of approximately 7856 sqkm of the Lower Darling River, downstream from Wilcannia. To this end, LiDAR data was acquired from a fixed wing aircraft between June 19th and August 5th 2009.

Background This report describes a project which involved the capture and processing of LiDAR and coincident imagery and resultant derived products for the lower reaches of the Darling River. The data joins two existing LiDAR datasets, one to the north covering the Menindee Lakes and the other in the south along the Murray River corridor. It is intended to provide the Murray-Darling Basin Authority with a very accurate, quality assured measurement of topography in order to accurately model the flow and volume of water in the floodplains within the project area. The LiDAR was captured in April and May 2013 at a point density of two 1st return points per square metre within swath, (equivalent to two outgoing laser pulses per square metre at ground level). The specified accuracies; 30cm vertical and 80cm horizontal, were achieved and verified through a rigorous network of ground check points and base stations. A set of seamless products were produced including hydro-flattened bare earth DEMs, DSMs and cartographic contours. The outputs of the project are compliant with National ICSM LiDAR Product Specifications and the NEDF.

The data covers an area of approximately 4600 sq km in the Namoi Valley, located around Narrabri, NSW. The LiDAR was captured in September and October 2013 with a point density of two points per square metre. The specified accuracies; 30cm vertical and 80cm horizontal, were achieved and verified through a rigorous network of check points and base stations. A set of seamless products were produced including hydro-flattened bare earth DEMs, DSMs, Canopy Height Models (CHM) and Foliage Cover Models (FCM). The outputs of the project are compliant with National ICSM LiDAR Product Specifications and the NEDF. The survey was conducted over two areas along the Namoi River: one from Boggabri to Narrabri, and the other between Wee Waa and Walgett including a newer extension to this original area to the north east of Wee Waa.

Aquisition by Photomapping Services with project management and ground control by Coordinated Solutions. Acquisition Start Date: January 20th 2011 Acquisition End Date: January 28th 2011 Device Name: Optech `ALTM Gemini Flying Height (AGL): 1400m IMU used: Litton LN200 Number of Runs: 50 + 2 cross strips Swath width: 1040m Flight direction: N - S Side Overlap: 40% (Hobart and surrounds) - 100% (Mt Wellington) Scan angle: +/- 20 degrees Horizontal datum : GDA94 Vertical datum: AHD Map projection: MGA 55 Description of aerotriangulation process used and residual results: LiDAR data captured using onboard GPS, IMU and ground basestation. Description of rectification process used: Trajectories and laser data corrected initially using AusGeoid98 and then adjusted to AHD using local PSMs. Spatial accuracy: 0.15m (vertical) and 0.30m (horizontal) at 1sigma Surface types: LAS classified 1m DEM Ground and Non-Ground points Average point separation: 1m Laser return types: 1st through to 4th Data thinning: No Laser footprint size: 0.42m

The coverage of this dataset is over the WestNarranLake region . The C3 LAS data set contains point data in LAS 1.2 format sourced from a LiDAR ( Light Detection and Ranging ) from an ALS50 ( Airborne Laser Scanner ) sensor . The processed data has been manually edited to achieve LPI classification level 3 whereby the ground class contains minimal non-ground points such as vegetation, water , bridges , temporary features , jetties etc . Purpose: To provide fit-for-purpose elevation data for use in applications related to coastal vulnerability assessment, natural resource management ( especially water and forests) , transportation and urban planning . Additional lineage information: This data has an accuracy of 0.3m ( 95 CI ) vertical and 0.8m ( 95 CI ) horizontal with a minimum point density of one laser pulse per square metre . For more information on the datas accuracy, refer to the lineage provided in the data history .

In June 2017, AAM completed field and aerial surveys over ~8,000 sqkm to generate orthoimagery and high definition level 1 classified LiDAR data to GA’s specifications. Under GA Deed CMC G3298A Contract D2017-43573 - Kimberley East. LiDAR and Imagery was captured over the site in separate flights between the 9th and 17th June 2017, a small gap was captured 9th July, the LiDAR and imagery have been controlled by 30 new control points This data supplied in this delivery is the Level 1 Classified las v1.4 dataset in 2km tiles. The height datum is Ellipsoidal.

The capture and processing of aerial lidar and coincident imagery products is required for the Nulla Basalt Geological Province in the upper Burdekin catchment of north Queensland. The Nulla Basalt Province project is the second of a series of high resolution elevation data acquisition projects required to support Geoscience Australia’s Exploring for the Future programme focussed on northern Australia. Products created in the project will primarily be used for high precision modelling of surface water movement across the landscape, identification of potential interactions with ground water resources in the region and modelling of structural geology from subtle surface expression of fault line steps indicative of historical seismic events.