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Waikato - West Coast and Hauraki Plains LiDAR Index Tiles (2015)

This layer contains the index tiles for LiDAR data from the Waikato west coast and Hauraki Plains captured in 2015.

The DEM is available as layer [Waikato - West Coast and Hauraki Plains LiDAR 1m DEM (2015)]( http://data.linz.govt.nz/layer/36 22).

The DSM is available as layer [Waikato - West Coast and Hauraki Plains LiDAR 1m DSM (2015)]( http://data.linz.govt.nz/layer/36 23).

The LAS point cloud and vendor project reports are available from [OpenTopography]( http://opentopo.sdsc.edu/datasets ).


Lidar was captured for Waikato Regional Council by Aerial Surveys in February and March 2015. The datasets were generated by Aerial Surveys and their subcontractors. Data management and distribution is by 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


Point density is 2 points/square metre.


Vertical datum is NZVD2016.

Simple

Identification info

Date (Creation)
2015-02-07
Date (Publication)
2015-03-01
Status
Completed
Point of contact
Role Organisation Electronic mail address
Point of contact

LINZ - Land Information New Zealand

info@linz.govt.nz

Spatial representation type
Grid

Spatial resolution

Equivalent scale

Denominator
1000
Topic category
  • Elevation
  • Imagery base maps earth cover

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

Extent

N
S
E
W


Resource format

Title

*.xml

Date
Edition

Unknown

ANZLIC Jurisdictions
  • New Zealand

ANZLIC Search Words
  • LAND-Topography

  • LAND-Cover

Resource constraints

Classification
Unclassified

Resource constraints

Use limitation

Released under Creative Commons By

Creative Commons Attribution 3.0 New Zealand

Link: http://data.linz.govt.nz/license/attribution-3-0-new-zealand/


Attribution Required for Copies:

"Copyright in this work is owned by Waikato Regional Council"


Attribution Required for Derivative works:

"Copyright in the underlying dataset from which this work has been derived is owned by Waikato Regional Council"

Access constraints
Copyright

Resource constraints

Use limitation

Released under Creative Commons By

Creative Commons Attribution 3.0 New Zealand

Link: http://data.linz.govt.nz/license/attribution-3-0-new-zealand/


Attribution Required for Copies:

"Copyright in this work is owned by Waikato Regional Council"


Attribution Required for Derivative works:

"Copyright in the underlying dataset from which this work has been derived is owned by Waikato Regional Council"

Access constraints
License

Resource constraints

Use limitation

Released under Creative Commons By

Creative Commons Attribution 3.0 New Zealand

Link: http://data.linz.govt.nz/license/attribution-3-0-new-zealand/


Attribution Required for Copies:

"Copyright in this work is owned by Waikato Regional Council"


Attribution Required for Derivative works:

"Copyright in the underlying dataset from which this work has been derived is owned by Waikato Regional Council"

Use constraints
Copyright

Resource constraints

Use limitation

Released under Creative Commons By

Creative Commons Attribution 3.0 New Zealand

Link: http://data.linz.govt.nz/license/attribution-3-0-new-zealand/


Attribution Required for Copies:

"Copyright in this work is owned by Waikato Regional Council"


Attribution Required for Derivative works:

"Copyright in the underlying dataset from which this work has been derived is owned by Waikato Regional Council"

Use constraints
License
Language
English
Character encoding
UTF8

Distribution Information

OnLine resource

https://data.linz.govt.nz/layer/53624-waikato-west-coast-and-hauraki-plains-lidar-index-tiles-2015/

Resource lineage

Statement

Data Acquisition:

Airborne Laser Scanner (ALS) data was acquired from a fixed wing aircraft on:

7th, 8th, 18th ,19th February & 1st March 2015, using Aerial Surveys OptechOrion H300 LiDAR system.


Survey Specification:

• Scanner: Optech Orion H300

• Flying Height: 500m AMGL

• Scan Angle: ±10.4 degrees

• Scan Frequency: 60.3Hz

• Pulse Rate: 50kHz

• Swath Overlap: 35%

• Points Per M2: 4.02


Data processing:


The LiDAR sensor positioning and orientation (POS) was determined using the collected

GPS/IMU datasets and Applanix POSPac software.


Benchmark: GSAM (Amberly) OWNER: Global Surveys


Base Station:


Type/Owner: VRS Geosystems

Benchmark: BS02 Based on our control point MOR101


Base Station Position:


39 10 44.39864 S 176 37 48.07897 E 406.311 Ell Height


Antenna Height:


2.250 Phase Center



The POS data was combined with the LiDAR range files and used to generate LIDAR point clouds in NZTM and ellipsoidal heights. This process was undertaken using Optech LMS LiDAR processing software. The data was checked for completeness of coverage. The relative fit of data in the overlap between strips was also checked.


The height accuracy of the ground classified LiDAR points was checked using open land-cover survey check site data collected by Sounds Surveying Ltd. This was done by calculating height differences statistics between a TIN of the LiDAR ground points and the checkpoints. The standard deviation statistic is 0.041m; a RMS of 0.069m and the average difference is -0.055m.


The positional accuracy of the LiDAR data has been checked by overlaying Sounds Surveying Ltd surveyed data over the LiDAR data displayed coded by intensity. The data was found to fit well in position.


The point cloud data was then classified withTerraSolid LiDAR processing software into ground and above ground returns using automated routines tailored to the project landcover and terrain.


All product deliverables are supplied in terms of NZTM map projection.

Classification of the point cloud followed the classification scheme below:

0 - Created, never classified

2 - Ground

14 - Above_Ground


Re-processing:

In 2016 the data was reprocessed by Aerial Surveys for LINZ relative to the NZVD2016 vertical datum, and supplied as 1:1000 nominal scale (2500 720m high x 480m wide subtiles per full NZ Topo50 sheet). Lakes and 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


Data hosted by OpenTopography was re-classified: the Above_Ground (14) points were reclassified as Unassigned classification (1)

Hierarchy level
Dataset
Other

dataset

Reference System Information

Reference system identifier
2193

Metadata constraints

Use limitation

Released under Creative Commons By

Creative Commons Attribution 3.0 New Zealand

Link: http://data.linz.govt.nz/license/attribution-3-0-new-zealand/


Attribution Required for Copies:

"Copyright in this work is owned by Waikato Regional Council"


Attribution Required for Derivative works:

"Copyright in the underlying dataset from which this work has been derived is owned by Waikato Regional Council"

Access constraints
Copyright

Metadata constraints

Use limitation

Released under Creative Commons By

Creative Commons Attribution 3.0 New Zealand

Link: http://data.linz.govt.nz/license/attribution-3-0-new-zealand/


Attribution Required for Copies:

"Copyright in this work is owned by Waikato Regional Council"


Attribution Required for Derivative works:

"Copyright in the underlying dataset from which this work has been derived is owned by Waikato Regional Council"

Access constraints
License

Metadata constraints

Use limitation

Released under Creative Commons By

Creative Commons Attribution 3.0 New Zealand

Link: http://data.linz.govt.nz/license/attribution-3-0-new-zealand/


Attribution Required for Copies:

"Copyright in this work is owned by Waikato Regional Council"


Attribution Required for Derivative works:

"Copyright in the underlying dataset from which this work has been derived is owned by Waikato Regional Council"

Use constraints
Copyright

Metadata constraints

Use limitation

Released under Creative Commons By

Creative Commons Attribution 3.0 New Zealand

Link: http://data.linz.govt.nz/license/attribution-3-0-new-zealand/


Attribution Required for Copies:

"Copyright in this work is owned by Waikato Regional Council"


Attribution Required for Derivative works:

"Copyright in the underlying dataset from which this work has been derived is owned by Waikato Regional Council"

Use constraints
License

Metadata

Metadata identifier
31e8b8f2-b049-c420-eec1-5fdb1eace1df

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

LINZ - Land Information New Zealand

info@linz.govt.nz

Type of resource

Resource type
Dataset
Name

dataset

Date info (Revision)
2017-06-26

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
ANZLIC Search Words
LAND-Cover LAND-Topography

Provided by

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


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