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Airborne Laser scanning was captured over the Chowilla Floodplain between 29-30th May
2003. This volume contains the ALS ground data points in 2*2km...
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Airborne Laser scanning was captured over the Chowilla Floodplain between 29-30th May</SPAN></P><P><SPAN>2003. This volume contains the ALS ground data points in 2*2km tiles</SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
The data in this volume has been commissioned by DEPT OF WATER, LAND AND
BIODIVERSITY CONSERVATION OF SA.
AAM GeoScan holds intellectual property rights to the data and assigns beneficial ownership to
DEPT OF WATER, LAND AND BIODIVERSITY CONSERVATION OF SA, subject to the
following conditions:
1. This file (README.PDF) is always stored with the unaltered data contained in this volume.
2. The data is not altered in any way without the approval of AAM GeoScan. The data may be
copied from this file to another.
3. The data is not used for purposes beyond that intended.
Any responsibility of AAM GeoScan is removed if any of these conditions is not observed.
4. AAM GeoScan maintains an archive copy of the data in this volume together with this
README file for at least 7 years after delivery.
CHOWILLA FLOODPLAIN 2M DEM 2003 SFA905
LAND Topography
PHOTOGRAPHY AND IMAGERY
Remote Sensing
Chowilla
South Australia
SA
Floodplain
DEM
Lidar
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Creative Commons Attribution 3.0 Australia (CC BY 3.0AU) https://creativecommons.org/licenses/by/3.0/au</SPAN></P><P><SPAN>Derived from ELVIS - Elevation and Depth - Foundation Spatial Data supply conditions</SPAN></P><P><SPAN>All users of this portal can order the 5m DEM, 25m DEM, 1 second (DEM, DEM-S, DEM-H), 3 second (DSM, DEM, DEM-S), and 9 second (DSM, DEM, DEM-S) elevation data which are licensed under Creative Commons. Please note that you may be able to acquire restricted data directly from the custodian (nb. a fee may be incurred). Please refer to the metadata for custodian contact details.</SPAN></P><P><SPAN>The data in this volume has been commissioned by DEPT OF WATER, LAND AND</SPAN></P><P><SPAN><SPAN>BIODIVERSITY CONSERVATION OF SA.</SPAN></SPAN></P><P><SPAN><SPAN>AAM GeoScan holds intellectual property rights to the data and assigns beneficial ownership to</SPAN></SPAN></P><P><SPAN><SPAN>DEPT OF WATER, LAND AND BIODIVERSITY CONSERVATION OF SA, subject to the</SPAN></SPAN></P><P><SPAN><SPAN>following conditions:</SPAN></SPAN></P><P><SPAN><SPAN>1. This file (README.PDF) is always stored with the unaltered data contained in this volume.</SPAN></SPAN></P><P><SPAN><SPAN>2. The data is not altered in any way without the approval of AAM GeoScan. The data may be</SPAN></SPAN></P><P><SPAN><SPAN>copied from this file to another.</SPAN></SPAN></P><P><SPAN><SPAN>3. The data is not used for purposes beyond that intended.</SPAN></SPAN></P><P><SPAN><SPAN>Any responsibility of AAM GeoScan is removed if any of these conditions is not observed.</SPAN></SPAN></P><P><SPAN><SPAN>4. AAM GeoScan maintains an archive copy of the data in this volume together with this</SPAN></SPAN></P><P><SPAN><SPAN>README file for at least 7 years after delivery.</SPAN></SPAN></P></DIV></DIV></DIV>
Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.1.14362
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140.781380
141.082634
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Lineage: PROJECT REPORT
Acquisition: Airborne Laser Scanning (ALS) data was acquired from a fixed wing aircraft
between May 29th and 30th.
Ground Support: GPS base station support was provided by third party surveyors without
incident. The ground check points acquired by third party surveyors allowed an assessment of
the accuracy of the ALS data.
Data Processing: Reduction of the ALS data proceeded without any significant problems.
Laser strikes were classified into ground and non-ground points using a single algorithm across
the project area. Manual checking and editing of the data classification further improved the
quality of the terrain model.
Further Processing: The ground data was thinned to remove superfluous points.
Data Presentation: The data provided on this volume has been supplied in accordance with a
specification agreed with the primary client. Subsequent users experiencing difficulties in
handling the data should please contact AAM GeoScan to arrange a more appropriate data
presentation
Further Issues: There are no further issues to report.
DEPT OF WATER, LAND AND BIODIVERSITY CONSERVATION OF SA
AIRBORNE LASER SCANNING SURVEY OF CHOWILLA FLOODPLAIN DATA DOCUMENTATION
? AAM GeoScan 26 June, 2003 Page 6 of 11
SOURCE DATA
Source Description Ref No Date
Laser scanning AAM GeoScan 25,000 Hz 810206 30.05.03
GPS base data LICS Pty Ltd Static GPS 810206 30.05.03
Base Stn coords LICS Pty Ltd Static GPS 810206 24.06.03
Test points LICS Pty Ltd RTK GPS 810206 24.06.03
ACCURACY
Measured
Point
Derived
Point
Basis of Estimation
Vertical data 0.062 Comparison with 241 test pts
0.13 Deductive Estimate
Horizontal data < 0.40 System specifications ( 1/2000 flying height)
ACCURACY NOTES:
• Values shown represent standard error (68% confidence level or 1 sigma), in metres
• “Derived points” are those interpolated from a terrain model.
• “Measured points” are those observed directly.
• Standard errors shown above are derived from the differences between data supplied in this
volume and test points. No allowance has been made for errors in the test points.
Completeness: The definition of the ground under trees may be less accurate.
This data has not been field tested for completeness
Murray-Darling Basin Authority
Murray-Darling Basin Authority
Canberra
ACT
2601
AU
gis@mdba.gov.au
Murray-Darling Basin Authority
Creative Commons Attribution 3.0 Australia (CC BY 3.0AU) https://creativecommons.org/licenses/by/3.0/au
Derived from ELVIS - Elevation and Depth - Foundation Spatial Data supply conditions
All users of this portal can order the 5m DEM, 25m DEM, 1 second (DEM, DEM-S, DEM-H), 3 second (DSM, DEM, DEM-S), and 9 second (DSM, DEM, DEM-S) elevation data which are licensed under Creative Commons. Please note that you may be able to acquire restricted data directly from the custodian (nb. a fee may be incurred). Please refer to the metadata for custodian contact details.
EPSG
8.9.4(10.5.0)
2
1
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