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Bay of Plenty LiDAR 1m DSM (2018-2019)

This layer contains the DSM for LiDAR data for Bay of Plenty captured between 2018 and 2019.


- The DEM is available as layer [Bay of Plenty LiDAR 1m DEM (2018-2019)]( https://data.linz.govt.nz/layer/104736 ).


- The index tiles are available as layer [Bay of Plenty LiDAR Index Tiles (2018-2019)]( https://data.linz.govt.nz/layer/10474 2).


- The LAS point cloud and vendor project reports are available from [OpenTopography]( https://portal.opentopography.org/datasets?loc=New%20Zealand ).


LiDAR was captured for BOPLASS Limited by AAM New Zealand from 7 December 2018 to 13 April 2019. These datasets were generated by AAM New Zealand and their subcontractors. 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 pulses/square metre.


Vertical Accuracy Specification is +/- 0.2m (95%)


Horizontal Accuracy Specification is +/- 1.0m (95%)


Vertical datum is NZVD2016

Simple

Identification info

Date (Creation)
2018-12-07
Status
Completed
Point of contact
Role Organisation Electronic mail address
Point of contact

Toitū Te Whenua Land Information New Zealand

customersupport@linz.govt.nz

Spatial representation type
Grid

Spatial resolution

Equivalent scale

Denominator
1000
Topic category
  • Elevation

Extent

Geographic identifier
nzl

Title

ANZMet Lite Country codelist

Date (Publication)
2009-03-31
Edition

Version 1.0

Edition date
2009-03-31
Citation identifier
http://asdd.ga.gov.au/asdd/profileinfo/anzlic-country.xml#Country

Cited responsible party
Role Organisation Electronic mail address
Custodian

ANZLIC the Spatial Information Council

Extent

N
S
E
W


Maintenance and update frequency
Not planned
ANZLIC Jurisdictions
  • New Zealand

Resource constraints

Classification
Unclassified

Resource constraints

Use limitation

Copyright of this work is owned by BOPLASS Limited © BOPLASS Limited

Use constraints
Copyright

Resource constraints

Use limitation

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 BOPLASS Limited, 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

Use constraints
License
Language
English
Character encoding
UTF8

Distribution Information

OnLine resource

https://data.linz.govt.nz/layer/104741-bay-of-plenty-lidar-1m-dsm-2018-2019/

Resource lineage

Statement

Data Acquisition:

Airborne Laser Scanner (ALS) data was acquired from a fixed wing aircraft on between 7th December 2018 to 13th April 2019 using AAM New Zealand's Optech Orion M300 LiDAR system and Riegl LMS Q780 LiDAR system.


Please refer to survey reports for survey specifications.


Airborne Laser Scanner (ALS) data was acquired from a fixed wing aircraft between 29th August to 28th September 2018 using AAM New Zealand's Optech Orion M300 LiDAR system and Riegl LMS Q780 LiDAR system.


Classification of the point cloud followed the classification scheme below;

1 - Unclassified

2 - Ground

7 - Low Noise Points

9 - Water

18 - High points


Data Processing:

Reduction of the LiDAR data proceeded without any problems. Laser strikes were classified into default, ground, water and Low/high points using a single algorithm across the project area. Manual editing of the data classification was undertaken to further improve the quality of the ground class. Ground class has been classified to ICSM Level 2.


Grid models were derived using a point to TIN and TIN to Raster process, using Linear interpolation.


Hydro flattening was undertaken in area that met the size criteria for hydro flattening as per the LINZ DEM build specification New Zealand National Aerial LiDAR Base Specifications v1.1 – being non-tidal water bodies with surface area greater than 10,000 sq m, and non-tidal water courses greater than 30m nominal width.


Data Validation:

GNSS base station support was sourced from GeoNET CORS. Ground control was surveyed by Sounds Surveying to allow an assessment of the accuracy of the LiDAR data, and to assist in control for the imagery.


No flights exceeding 6 hours, therefore the GNSS data has not been included. All base stations used were existing LINZ geodetic marks that are part of the GeoNET CORS system.


The deliverables to LINZ were:

1m gridded bare earth digital elevation model (DEM)

1m gridded digital surface model (DSM)

Classified point cloud

Hierarchy level
Series
Other

series

Reference System Information

Reference system identifier
2193

Metadata constraints

Use limitation

Copyright of this work is owned by Toitū Te Whenua Land Information New Zealand © LINZ

Use constraints
Copyright

Metadata constraints

Use limitation

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

Use constraints
License

Metadata

Metadata identifier
f71aa5d1-a2e6-7547-f265-a2e61f73183b

Language
English
Character encoding
UTF8
Contact
Role Organisation Electronic mail address
Point of contact

Toitū Te Whenua Land Information New Zealand

customersupport@linz.govt.nz

Type of resource

Resource type
Series
Name

series

Date info (Revision)
2020-12-15

Metadata standard

Title

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Edition

1.1

 
 

Spatial extent

N
S
E
W


Keywords

ANZLIC Jurisdictions
New Zealand

Provided by

Access to the catalogue
Read here the full details and access to the data.


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