DOI: https://doi.org/10.5069/G97S7KZ8
OT Collection ID: OT.032023.2193.1
OT Collection Name: Top of the South Flood, Nelson and Tasman, New Zealand 2022
Short Name: NZ22_ToS
Collection Platform: Airborne Lidar

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Download and Access Products: 
	1. Point Cloud Data
		opentopoID: OTLAS.032023.2193.1
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.032023.2193.1


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Collection Overview: LiDAR was captured for Nelson City Council, Tasman District Council, Waka Kotahi and National Emergency Management Agency by Aerial Surveys Ltd from 23 August 2022 to 6 September 2022, in response to a severe weather emergency event. The dataset was generated by Aerial Surveys and their subcontractors. Data management and distribution is by Toitū Te Whenua Land Information New Zealand.
Prepared DEM files are available through the LINZ Data Service:

Top of the South Flood, Nelson and Tasman, New Zealand 2022 Digital Elevation Model
Top of the South Flood, Nelson and Tasman, New Zealand 2022 Digital Surface Model


Dataset Acknowledgement: Released under Creative Commons CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Attribution Required for Copies: "Copyright in this work is owned by Nelson City Council, Tasman District Council, Waka Kotahi NZ Transport Agency and the National Emergency Management Agency". Attribution Required for Derivative works: "Copyright in the underlying dataset from which this work has been derived is owned by Nelson City Council, Tasman District Council, Waka Kotahi NZ Transport Agency and National Emergency Management Agency".

Dataset Citation: Tasman District Council, Nelson City Council, Waka Kotahi New Zealand Transport Agency, National Emergency Management Agency, Toitū Te Whenua Land Information New Zealand (LINZ) (2023). Top of the South Flood, Nelson and Tasman, New Zealand 2022. Collected by Aerial Surveys, distributed by OpenTopography and LINZ. https://doi.org/10.5069/G97S7KZ8. Accessed: 2024-12-21

Use License: CC BY 4.0

Dataset Keywords: Nelson, tasman, new zealand, linz, aerial surveys

Survey Date: 08/23/2022 - 09/06/2022
Publication Date: 03/10/2023

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Data Provider and Roles:
	1. Aerial Surveys
	Role: Collector
	Url: https://www.aerialsurveys.co.nz/

	2. Nelson City Council
	Role: Funder
	Url: http://www.nelson.govt.nz/

	3. Tasman District Council
	Role: Funder
	Url: https://www.tasman.govt.nz/

	4. Waka Kotahi NZ Transport Agency
	Role: Funder
	Url: https://www.nzta.govt.nz/

	5. National Emergency Management Agency
	Role: Funder
	Url: https://www.civildefence.govt.nz/

	6. Toitū Te Whenua Land Information New Zealand
	Role: Partner
	Url: https://www.linz.govt.nz/


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Total number of points: 13,949,359,619 pts

Area: 926.87 km^2

Point Density: 15.05 pts/m^2

Classifications: 
	Class 1 - Unclassified: 4,270,007,279
	Class 2 - Ground: 1,699,250,120
	Class 3 - Low Vegetation: 1,306,465,705
	Class 4 - Medium Vegetation: 2,149,348,905
	Class 5 - High Vegetation: 4,389,146,663
	Class 6 - Building: 53,100,806
	Class 7 - Low Point (low noise): 3,634,990
	Class 9 - Water: 69,529,594
	Class 18 - High Noise: 8,875,557
Coordinates System: 
	Horizontal: NZTM2000 NZGD2000 Meters [EPSG: 2193]
	Vertical: NZVD2016 [EPSG: 7839]

Survey Report: https://object.cloud.sdsc.edu:443/v1/AUTH_opentopography/www/metadata/NZ22_ToS_metadata.pdf

LAS Validation Data Report: https://portal.opentopography.org/lasReport?opentopoID=OTLAS.032023.2193.1

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Dataset Extent in KMZ format: https://portal.opentopography.org/getKml?otCollectionID=OT.032023.2193.1&download=true

Dataset Spatial Bounds:
	North: -40.79644374348142°
	South: -41.50491314118474°
	East: 173.6812937972038°
	West: 172.77713035419183°