Data

Norfolk Island lidar

Commonwealth Scientific and Industrial Research Organisation
Gallant, John ; Petheram, Cuan
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.25919/5e4a0e4e93d4c&rft.title=Norfolk Island lidar&rft.identifier=https://doi.org/10.25919/5e4a0e4e93d4c&rft.publisher=Commonwealth Scientific and Industrial Research Organisation&rft.description=Lidar point data, images, digital elevation models and related data collected for the Norfolk Island Water Resource Assessment project.Lineage: Lidar data was collected for CSIRO Land and Water by Landpro on 13 and 14 September 2019 covering all of Norfolk Island (including near-shore exposed rocks), Nepean Island and Phillip Island. The target point density was 16 pulses per square metre but due to the low flying altitude and non-uniform density the median density is about 30 ppsm.Imagery was captured simultaneously and processed to 3 cm resolution. Due to privacy considerations this has been degraded to about 0.5 m resolution for Norfolk Island in this public release. The original resolution data is held by CSIRO, the Norfolk Island Regional Council and the Department of Infrastructure, Transport, Regional Development and Communications.The lidar points were classified to standard class numbers with some modifications to account for the extremely high point density produced by the sinusoidal scan pattern at the end of each scan line. Class 12 (overlap) was applied to the very dense and less reliable points within about 15 m of the end of each scan line. Class 13 (redundant points) was applied to a small fraction of the points that were in high density areas and were judged to be detrimental to the accuracy of the DEM.Landpro produced a digital elevation model (DEM) at 0.5 m resolution and a digital surface model (DSM) at 1 m resolution. CSIRO derived additional products including pulse counts, hillshades and contours.&rft.creator=Gallant, John &rft.creator=Petheram, Cuan &rft.date=2020&rft.edition=v1&rft.coverage=westlimit=167.91; southlimit=-29.14; eastlimit=168.0; northlimit=-28.99; projection=WGS84&rft_rights=Creative Commons Attribution 4.0 International Licence https://creativecommons.org/licenses/by/4.0/&rft_rights=Data is accessible online and may be reused in accordance with licence conditions&rft_rights=All Rights (including copyright) CSIRO 2020.&rft_subject=Norfolk Island&rft_subject=lidar&rft_subject=imagery&rft_subject=aerial photography&rft_subject=digital elevation model&rft_subject=DEM&rft_subject=Land use and environmental planning&rft_subject=Urban and regional planning&rft_subject=BUILT ENVIRONMENT AND DESIGN&rft_subject=Groundwater hydrology&rft_subject=Hydrology&rft_subject=EARTH SCIENCES&rft_subject=Surface water hydrology&rft_subject=Environmental management&rft_subject=Environmental management&rft_subject=ENVIRONMENTAL SCIENCES&rft_subject=Soil sciences not elsewhere classified&rft_subject=Soil sciences&rft_subject=Heritage and cultural conservation&rft_subject=Heritage, archive and museum studies&rft_subject=HISTORY, HERITAGE AND ARCHAEOLOGY&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 4.0 International Licence
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Data is accessible online and may be reused in accordance with licence conditions

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Lidar point data, images, digital elevation models and related data collected for the Norfolk Island Water Resource Assessment project.
Lineage: Lidar data was collected for CSIRO Land and Water by Landpro on 13 and 14 September 2019 covering all of Norfolk Island (including near-shore exposed rocks), Nepean Island and Phillip Island. The target point density was 16 pulses per square metre but due to the low flying altitude and non-uniform density the median density is about 30 ppsm.

Imagery was captured simultaneously and processed to 3 cm resolution. Due to privacy considerations this has been degraded to about 0.5 m resolution for Norfolk Island in this public release. The original resolution data is held by CSIRO, the Norfolk Island Regional Council and the Department of Infrastructure, Transport, Regional Development and Communications.

The lidar points were classified to standard class numbers with some modifications to account for the extremely high point density produced by the sinusoidal scan pattern at the end of each scan line. Class 12 (overlap) was applied to the very dense and less reliable points within about 15 m of the end of each scan line. Class 13 (redundant points) was applied to a small fraction of the points that were in high density areas and were judged to be detrimental to the accuracy of the DEM.

Landpro produced a digital elevation model (DEM) at 0.5 m resolution and a digital surface model (DSM) at 1 m resolution. CSIRO derived additional products including pulse counts, hillshades and contours.

Available: 2020-02-17

Data time period: 2019-09-13 to 2019-09-14

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168,-28.99 168,-29.14 167.91,-29.14 167.91,-28.99 168,-28.99

167.955,-29.065

Subjects
Built Environment and Design | DEM | Earth Sciences | Environmental Sciences | Environmental Management | Environmental Management | Groundwater Hydrology | History, Heritage and Archaeology | Heritage and Cultural Conservation | Heritage, Archive and Museum Studies | Hydrology | Land Use and Environmental Planning | Norfolk Island | Soil Sciences | Soil Sciences Not Elsewhere Classified | Surface Water Hydrology | Urban and Regional Planning | aerial photography | digital elevation model | imagery | lidar |

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Identifiers
ACN 633 798 857