This layer contains the DEM for LiDAR data in the northern Auckland Region captured between 2016 and 2018.

• The DSM is available as layer Auckland North LiDAR 1m DSM (2016-2018).

• The index tiles are available as layer Auckland North LiDAR Index Tiles (2016-2018).

• The LAS point cloud and vendor project reports are available from OpenTopography.

LiDAR was captured for Auckland Council by Aerial Surveys from 16 August 2016 to 9 August 2018. These datasets were generated by Aerial Surveys 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 4 pulses/square metre.

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

Horizontal Accuracy Specification is +/- 0.6m (95%).

Vertical datum is NZVD2016.

This layer contains the DSM for LiDAR data in Auckland, captured between 30th of April and 27th of June 2024.

The DEM is available as layer Auckland Part 1 LiDAR 1m DEM (2024).

The Index Tiles are available as layer Auckland Part 1 LiDAR Index Tiles (2024).

The LAS Point Cloud is available as layer Auckland Part 1 LiDAR Point Cloud (2024).

LiDAR was captured for Regional Software Holdings Limited (RSHL) by Woolpert between 30th of April and 27th of June 2024. The project was funded by Ministry for the Environment (MFE) in response to the effects of the Auckland anniversary day flooding.

This dataset is being refined by Auckland Council. Once improvements to this dataset have been completed the dataset will be updated.

The datasets were generated by Woolpert 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 8 pulses/square metre.

Vertical Accuracy Specification is +/- 0.2m (95%) Horizontal Accuracy Specification is +/- 1.0m (95%)

Vertical datum is NZVD2016.

This layer contains the DEM for LiDAR data in the southern Auckland Region captured between 2016 and 2017.

• The DSM is available as layer Auckland South LiDAR 1m DSM (2016-2017).

• The index tiles are available as layer Auckland South LiDAR Index Tiles (2016-2017).

• The LAS point cloud and vendor project reports are available from OpenTopography.

LiDAR was captured for Auckland Council by AAM New Zealand between September 2016 to June 2017. 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 is 4 pulses/square metre.

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

Horizontal Accuracy Specification is +/- 0.6m (95%).

Vertical datum is NZVD2016

Lidar was captured for Auckland Council by NZ Aerial Mapping & Aerial Surveys Limited. The capture of the data commenced on 17th July and was completed by the 23 November 2013. The datasets were generated by both ASL and NZAM. All raw point cloud data was produced by NZAM & ASL prior to data being sent to Genesys International for the data classification and product generation. The survey area includes the Auckland city urban area and adjacent rural land. Data management and distribution external to Auckland Council is managed by Land Information New Zealand.

Prepared DEM and DSM files are available through the LINZ Data Service

• https://data.linz.govt.nz/layer/3405-auckland-lidar-1m-dem-2013/
• https://data.linz.govt.nz/layer/3406-auckland-lidar-1m-dsm-2013/

LiDAR point cloud captured from helicopter for damage assessments of Muriwai, Piha, Scenic Drive, Ahuroa Road, Krippner Road, Manukau Heads Road in February and March 2023.Dates flown:Scenic Drive, Ahuroa Road, Krippner Road, Manukau Heads Road – 21/02/2023Muriwai – 26/02/2023Piha – 04/03/2023Scenic Drive, Ahuroa Road, Krippner Road, Manukau Heads Road and Titirangi - 21/02/2023Flight Altitude 600m above ground, 60% forward overlap and 55% side-lap.Camera Hasselblad Airborne A6D 100 MP with 50mm calibrated fixed focus lens.Lidar dataset flown with Riegl 780, 25% power settings, full waveform mode, 600m above ground, 50% sidelap, multiple MTA zones, 18/02/2023 GPS/INS IGI Aerocontrol 256Hz IMU rate, processed with Aerooffice and GrafnavGPS base LINZ Auckland.Processed with Ri Process /RiUnite 1.9.3-18218 (2022-11-24)/1.0.4 automatic MTA mode, filling MTA changes automatically.Output LAS 1.2 Accuracy 0.001m Reflectivity values.Final adjustment Stripalign against LINZ GCP and for comparison reasons 2016 LINZ DTM.Point classification in Terrasolid acoording standard ASPRS classes 1,2,3,4,5,7,8DTMgeneration 1m minimum value.ASPS classes 2,8(this is a engineering dataset not fully conform with the ANZLIC specification).

This map contains the DEM for LiDAR data in the Auckland Region. Auckland southern region: LiDAR was captured for Auckland Council by AAM New Zealand between September 2016 to June 2017. Auckland northern region: LiDAR was captured for Auckland Council by Aerial Surveys from 16 August 2016 to 9 August 2018. Data management and distribution is by Toitū Te Whenua Land Information New Zealand. 1 metre DEMPulse density specification is at a minimum of 4 pulses/square metreVertical Accuracy Specification is +/- 0.2mHorizontal Accuracy Specification is +/- 0.6m (95%).Vertical datum is NZVD2016.Other links: Aotearoa New Zealand HIllshadeNZ Topographic Relief (Vector)NZ ElevationNZ DSM Hillshade

This layer contains the DSM for LiDAR data from the Auckland region captured in 2013.
The DEM is available as layer Auckland Lidar 1m DEM (2013). The index tiles are available as layer Auckland Lidar Index Tiles (2013). The LAS point cloud and vendor project reports are available from OpenTopography.

Lidar was captured for Auckland Council by NZ Aerial Mapping & Aerial Surveying Limited. The capture of the data commenced on 17th July and was completed by the 23 November 2013. The datasets were generated by both ASL and NZAM. All raw point cloud data was produced by NZAM & ASL prior to data being sent to Genesys International for the data classification and product generation. The survey area includes the Auckland city urban area and adjacent rural land covering approximately 2250 square kilometers. Data management and distribution external to Auckland Council is managed by Land Information New Zealand.

Data comprises: •DEM: 6423 asc files in NZTM projection, tiled into a 1:1,000 tile layout •DSM: 6423 asc files in NZTM projection, tiled into a 1:1,000 tile layout •Pont cloud: 8224 las files in NZTM projection, tiled into a 1:1,000 tile layout

Data was collected at > 1.5 point/square metre point density. Attributes include: -Elevation -Intensity values -Return number -Adjusted GPS time -Classification

Vertical accuracy specification is +/-0.2m (@ 95% confidence) Horizontal accuracy specification is +/-0.6m (@ 95% confidence)

Verical Datum is NZVD2009

This layer contains the DEM for LiDAR data in the southern Auckland Region captured between 2016 and 2017. The DSM is available as layer Auckland South LiDAR 1m DSM (2016). The index tiles are available as layer Auckland South LiDAR Index Tiles (2016). The LAS point cloud and vendor project reports are available from OpenTopography. LiDAR was captured for Auckland Council by AAM New Zealand between September 2016 to June 2017. These datasets were generated by AAM New Zealand 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 Pulse density is 4 pulses/square metre. Vertical Accuracy Specification is +/- 0.2m (95%). Horizontal Accuracy Specification is +/- 0.6m (95%). Vertical datum is NZVD2016

Orthophoto produced based on Lidar/Image/Thermal flight from 18/02/2023 with 5cm resolution.

Flight Altitude 600m above ground, 80 Knts,60% forward overlap and 55% sidelap.

Camera Hasselblad Airborne A6D 100 Mpixel with 50mm calibrated fixed focus lens.

GPS/INS IGI Aerocontrol with timestamping from mid-shutter measurement on Event 1 GNSS base station LINZ Auckland.

Processing with Hasselblad Phocus 3.7.2 to JPEG.

Aerial Triangualtion with ISAT 14.2 , Orthophoto processing with Inpho Orthomaster/OrthovistaTerrain model for the Orthorectification Lidar based 10m Accuracy expected better 3 pixel size.

Final assembly as ECW.

Survey report for the Aucklan NIWE LiDAR 2024. LiDAR was captured for Regional Software Holdings Limited (RSHL) by Woolpert between 30th of April and 27th of June 2024. The project was funded by Ministry for the Environment (MFE) in response to the effects of the Auckland anniversary day flooding.

​

The datasets were generated by Woolpert and their subcontractors. Data management and distribution is by Toitū Te Whenua Land Information New Zealand.

LiDAR was captured for Regional Software Holdings Limited (RSHL) by Woolpert between 30th of April and 27th of June 2024. The project was funded by Ministry for the Environment (MFE) in response to the effects of the Auckland anniversary day flooding. This dataset is being refined by Auckland Council. Once improvements to this dataset have been completed the dataset will be updated. The datasets were generated by Woolpert and their subcontractors. Data management and distribution is by Toitū Te Whenua Land Information New Zealand.

This New Zealand Point Cloud Classification Deep Learning Package will classify point clouds into building and background classes. This model is optimized to work with New Zealand aerial LiDAR data.The classification of point cloud datasets to identify Building is useful in applications such as high-quality 3D basemap creation, urban planning, and planning climate change response.Building could have a complex irregular geometrical structure that is hard to capture using traditional means. Deep learning models are highly capable of learning these complex structures and giving superior results.This model is designed to extract Building in both urban and rural area in New Zealand.The Training/Testing/Validation dataset are taken within New Zealand resulting of a high reliability to recognize the pattern of NZ common building architecture.Licensing requirementsArcGIS Desktop - ArcGIS 3D Analyst extension for ArcGIS ProUsing the modelThe model can be used in ArcGIS Pro's Classify Point Cloud Using Trained Model tool. Before using this model, ensure that the supported deep learning frameworks libraries are installed. For more details, check Deep Learning Libraries Installer for ArcGIS.Note: Deep learning is computationally intensive, and a powerful GPU is recommended to process large datasets.The model is trained with classified LiDAR that follows the The model was trained using a training dataset with the full set of points. Therefore, it is important to make the full set of points available to the neural network while predicting - allowing it to better discriminate points of 'class of interest' versus background points. It is recommended to use 'selective/target classification' and 'class preservation' functionalities during prediction to have better control over the classification and scenarios with false positives.The model was trained on airborne lidar datasets and is expected to perform best with similar datasets. Classification of terrestrial point cloud datasets may work but has not been validated. For such cases, this pre-trained model may be fine-tuned to save on cost, time, and compute resources while improving accuracy. Another example where fine-tuning this model can be useful is when the object of interest is tram wires, railway wires, etc. which are geometrically similar to electricity wires. When fine-tuning this model, the target training data characteristics such as class structure, maximum number of points per block and extra attributes should match those of the data originally used for training this model (see Training data section below).OutputThe model will classify the point cloud into the following classes with their meaning as defined by the American Society for Photogrammetry and Remote Sensing (ASPRS) described below: 0 Background 6 BuildingApplicable geographiesThe model is expected to work well in the New Zealand. It's seen to produce favorable results as shown in many regions. However, results can vary for datasets that are statistically dissimilar to training data.Training dataset - Auckland, Christchurch, Kapiti, Wellington Testing dataset - Auckland, WellingtonValidation/Evaluation dataset - Hutt City Dataset City Training Auckland, Christchurch, Kapiti, Wellington Testing Auckland, Wellington Validating HuttModel architectureThis model uses the SemanticQueryNetwork model architecture implemented in ArcGIS Pro.Accuracy metricsThe table below summarizes the accuracy of the predictions on the validation dataset. - Precision Recall F1-score Never Classified 0.984921 0.975853 0.979762 Building 0.951285 0.967563 0.9584Training dataThis model is trained on classified dataset originally provided by Open TopoGraphy with < 1% of manual labelling and correction.Train-Test split percentage {Train: 75~%, Test: 25~%} Chosen this ratio based on the analysis from previous epoch statistics which appears to have a descent improvementThe training data used has the following characteristics: X, Y, and Z linear unitMeter Z range-137.74 m to 410.50 m Number of Returns1 to 5 Intensity16 to 65520 Point spacing0.2 ± 0.1 Scan angle-17 to +17 Maximum points per block8192 Block Size50 Meters Class structure[0, 6]Sample resultsModel to classify a dataset with 23pts/m density Wellington city dataset. The model's performance are directly proportional to the dataset point density and noise exlcuded point clouds.To learn how to use this model, see this story

Lidar was captured for Auckland Council by Aerial Surveys between August 2016 to August 2018. The dataset was generated by Aerial Surveys and their subcontractors. The survey area includes Auckland CBD, Great Barrier Island, Little Barrier Island, North Shore, Waiheke Island, Wellsford, Whangaparaoa, Whatipu, as well as the surrounding area. Data management and distribution is by Toitū Te Whenua Land Information New Zealand . Prepared DSM files are available through the LINZ Data Service: Auckland North, New Zealand 2016-2018 Digital Elevation Model Auckland North, New Zealand 2016-2018 Digital Surface Model

This layer contains the DEM for LiDAR data in the Southland Region, captured between 15 December 2020 to 30 January 2024.

• The DSM is available as layer Southland - LiDAR 1m DSM (2020-2024).

-

             The index tiles are available as layer [Southland - LiDAR Index Tiles (2020-2024)](https://data.linz.govt.nz/layer/113174).

-

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

LiDAR was captured for Environment Southland by Aerial Surveys Ltd between 15 December 2020 to 30 January 2024. These datasets were generated by Aerial Surveys 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 4 pulses/square metre.

Vertical Accuracy Specification is +/- 0.2m (95%) Horizontal Accuracy Specification is +/- 1.0m (95%)

Vertical datum is NZVD2016.

The New Zealand Elevation dataset consists of New Zealand's publicly owned digital elevation models and digital surface models, which are freely available to use under an open licence. The dataset contains 1m resolution grids derived from LiDAR data. Point clouds are not included in the initial release.All of the elevation files are Cloud Optimised GeoTIFFs using LERC compression for the main grid and LERC compression with lower max_z_error for the overviews. These elevation files are accompanied by STAC metadata. The elevation data is organised by region and survey.

Lidar was captured for Auckland Council by AAM New Zealand between September 2016 through to June 2017. The original dataset was generated by AAM New Zealand and their subcontractors. The survey area covers the southern Auckland suburbs and regions. Data management and distribution is by Land Information New Zealand. Prepared DEM and DSM files are available through the LINZ Data Service: Auckland South, New Zealand 2016-2017 Digital Elevation Model Auckland South, New Zealand 2016-2017 Digital Surface Model

This layer contains the DEM for LiDAR data for the Canterbury Region, captured between 1 May 2020 and 22 April 2024, and includes reflies to patch data voids, captured early 2025.

• The DSM is available as layer "https://data.linz.govt.nz/layer/111135">Canterbury LiDAR 1m DSM (2020-2025).

• The index tiles are available as layer "https://data.linz.govt.nz/layer/111236">Canterbury LiDAR Index Tiles (2020-2025).

• The LAS point cloud and vendor project reports are available from OpenTopography.

LiDAR was captured for Environment Canterbury Regional Council by Aerial Surveys Ltd between 1 May 2020 and 22 April 2024. These datasets were generated by Arial Surveys Ltd 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 4 pulses/square metre.

Vertical Accuracy Specification is +/- 0.2m (95%) Horizontal Accuracy Specification is +/- 1.0m (95%)

Vertical datum is NZVD2016.

This layer contains the DEM for LiDAR data in the Bay of Plenty region, covering Tauranga, Rotorua, Whakatāne, Te Puke and Whakaari/White Island, captured from October 2019 to October 2022.

• The DSM is available as layer "https://data.linz.govt.nz/layer/105691">Bay of Plenty LiDAR 1m DSM (2019-2022)

• The index tiles are available as layer Bay of Plenty LiDAR Index Tiles (2019-2022)

• The LAS point cloud and vendor project reports are available from OpenTopography

LiDAR was captured for BOPLASS Ltd by Aerial Surveys from 27 October 2019 to 24 October 2022. The dataset was generated by Aerial Surveys 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, tiledinto 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 >4 pulses/square metre.

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

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

Vertical datum is NZVD2016.

This layer contains the DSM for LiDAR data in the Waikato Region including Hamilton City and Ngāruawāhia as well as the surrounding area captured on 10 November 2023.

• The DEM is available as layer "https://data.linz.govt.nz/layer/117092">Waikato - Hamilton LiDAR 1m DEM (2023).

• The Index Tiles are available as layer "https://data.linz.govt.nz/layer/117094">Waikato - Hamilton LiDAR Index Tiles (2023).

• The LAS point cloud is available as layer "https://data.linz.govt.nz/layer/d3SPPnPQ39sCSyM">Waikato - Hamilton LiDAR Point Cloud (2023).

• The vendor projects report is available as layer Waikato - Hamilton LiDAR (2023) Survey Report.

LiDAR was captured for Hamilton City Council by Woolpert on 10 November 2023. These datasets were generated by Woolpert 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 8 pulses/square metre.

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

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

Vertical datum is NZVD2016

This layer contains the DEM for LiDAR data in the Gisborne Region, captured between 11 September to 16 December 2023.

• The DSM is available as layer Gisborne LiDAR 1m DSM (2023).

-

             The Index Tiles are available as layer [Gisborne LiDAR Index Tiles (2023)](https://data.linz.govt.nz/layer/115845).

-

             The LAS point cloud is available as layer [Gisborne LiDAR Point Cloud (2023)](https://data.linz.govt.nz/layer/d3Sfpb7TW63wByN/gisborne-lidar-point-cloud-2023/).

-

             The vendor project report is available as layer [Gisborne LiDAR (2023) Survey Report](https://data.linz.govt.nz/document/25323).

LiDAR was captured for NIWA by Landpro Ltd between 11 September to 16 December 2023. These datasets were generated by Landpro 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 8 pulses/square metre.

Vertical Accuracy Specification is +/- 0.2m (95%) Horizontal Accuracy Specification is +/- 1.0m (95%)

Vertical datum is NZVD2016.