Creative Commons Attribution 4.0 International
You may use this work for commercial purposes.
You must attribute the creator in your own works.
This dataset was first added to LINZ Data Service on 14 Jul 2020.
4f420e25-edd8-ca24-68db-100da7d3e8bf
eng
utf8
dataset
dataset
Toitū Te Whenua Land Information New Zealand
Lidar Coordination Manager
04 4600110
155 The Terrace
Wellington
6145
New Zealand
customersupport@linz.govt.nz
pointOfContact
2020-07-16
ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata
1.1
2193
Otago - Balclutha LiDAR Index Tiles (2020)
This layer contains the Index Tiles for LiDAR data for Balclutha, Kaitangata and Kaka Point, as well as the surrounding Clutha Delta, Otago in 2020.
- The DEM is available as layer [Otago - Balclutha LiDAR 1m DEM (2020)](https://data.linz.govt.nz/layer/104763).
- The DSM is available as layer [Otago - Balclutha LiDAR 1m DSM (2020)](https://data.linz.govt.nz/layer/104764).
- The LAS point cloud and vendor project reports are available from [OpenTopography](https://portal.opentopography.org/datasets?loc=New%20Zealand).
LiDAR was captured for Otago Regional Council by Landpro from 16 to 18 January 2020. These datasets were generated by Landpro. Data management and distribution is by Toitū Te Whenua Land Information New Zealand.
Data comprises:
- DEM: tif or asc tiles in NZTM2000 projection, tiled into a 1:1,000 tile layout
- DSM: tif or asc tiles in NZTM2000 projection, tiled into a 1:1,000 tile layout
- Point cloud: las tiles in NZTM2000 projection, tiled into a 1:1,000 tile layout
Pulse density specification is at a minimum of 2.03 pulses/square metre.
Vertical Accuracy Specification is +/- 0.12m (95%)
Horizontal Accuracy Specification is +/- 0.57m (95%)
Vertical datum is NZVD2016
completed
Toitū Te Whenua Land Information New Zealand
Lidar Coordination Manager
04 4600110
155 The Terrace
Wellington
6145
New Zealand
customersupport@linz.govt.nz
pointOfContact
notPlanned
*.xml
Unknown
New Zealand
theme
ANZLIC Jurisdictions
Version 2.1
2008-10-29
http://asdd.ga.gov.au/asdd/profileinfo/anzlic-jurisdic.xml#anzlic-jurisdic
ANZLIC the Spatial Information Council
custodian
unclassified
Copyright of this work is owned by Otago Regional Council
© Otago Regional Council
copyright
Released by LINZ under Creative Commons Attribution 4.0 New Zealand (CC BY 4.0) with:
Following Attribution:
"Sourced from the LINZ Data Service and licensed by Otago Regional Council, for re-use under CC BY 4.0."
For details see: https://www.linz.govt.nz/data/licensing-and-using-data/attributing-elevation-or-aerial-imagery-data
license
vector
1000
eng
utf8
elevation
ANZMet Lite Country codelist
Version 1.0
2009-03-31
http://asdd.ga.gov.au/asdd/profileinfo/anzlic-country.xml#Country
ANZLIC the Spatial Information Council
custodian
nzl
https://data.linz.govt.nz/layer/104765-otago-balclutha-lidar-index-tiles-2020/
dataset
dataset
Data Acquisition:
Airborne Laser Scanner (ALS) data was acquired from a fixed wing aircraft on between 16th and 18th January 2020 using Landpro's Leica ALS60 LiDAR system.
Survey Specification:
- Scanner: Leica ALS60
- Half Scan Angle: ±13 degrees
- Laser Pulse Rate: 131kHz
- Laser Pulse Mode: Multipulse
- Laser Return: 1st, 2nd, 3rd... 4th and last
- File Format: GeoTIFF, LAS 1.4, ESRI Shapefile
- Horizontal Datum: NZGD2000
- Vertical Datum: NZVD2016
- Map Projection: NZTM2000
- Vertical Accuracy Specification: ±0.12m (95% Confidence Interval)
- Horizontal Accuracy Specification: ±0.57m (95% Confidence Interval)
Airborne Laser Scanner (ALS) data was acquired from a fixed wing aircraft on between 16th and 18th January 2020 using Landpro's Leica ALS60 LiDAR system.
Classification of the point cloud followed the classification scheme below;
1 - Unclassified
2 - Ground
3 - Low Vegetation
4 - Medium Vegetation
5 - High Vegetation
6 - Building
9 - Water
17 - Bridge
Rail (10) points were reclassified by LINZ as Bridges (17) per survey reference before providing the classified point cloud data to Open Topography.
Data Processing:
A “1st run” automatic classification was carried out on the raw LiDAR points using TerraSolid’s TerraScan software to separate the LiDAR points into ground hits and non-ground hits. This results in a greater than 90% correct classification. After this, a manual classification was done over the required area to edit the points with gross classification errors that may have occurred in the automatic classification process. Ground class has been classified to ICSM Level 2.
Data Validation:
The check points of the lidar survey had been compared with the LiDAR ground surface for vertical accuracy resulting in 0.026m RMS. The positional accuracy of the LiDAR data has been checked by plotting the Landpro Ltd. check points and displaying the LiDAR by intensity. The LiDAR was in position.
Please see survey report for more data validation details.
Lakes and large rivers were hydroflattened in the Bare Earth Digital Elevation Model.
The deliverables to LINZ were:
1m gridded bare earth digital elevation model (DEM)
1m gridded digital surface model (DSM)
Classified point cloud
Copyright of this work is owned by Toitū Te Whenua Land Information New Zealand © LINZ
copyright
Released by LINZ under Creative Commons Attribution 4.0 New Zealand (CC BY 4.0) with:
Following Attribution:
"Sourced from the LINZ Data Service and licensed by LINZ Data Service, for re-use under CC BY 4.0."
For details see: https://www.linz.govt.nz/data/licensing-and-using-data/attributing-elevation-or-aerial-imagery-data
license