Geospatial data about Napier 0.05m Urban Aerial Photos (2024-2025) Survey Report. Export to CAD, GIS, PDF, CSV and access via API.

A record of the severe weather emergency event of Cyclone Gabrielle in February 2023.

Imagery Provided by - Hawkes Bay Regional Council Aerial Acquisition and Orthophoto Production by - SkyCan Limited

Orthophotography within the Hawke's Bay Region covering Wairoa, Esk Valley, Heretaunga Plains (including Napier, Hastings and Havelock North), Poukawa and Waipukurau,

Date of Captures: Esk Region: 19 Feb 2023 0945 to 1150 NZDT Wairoa Region: 19 Feb 2023 1202 to 1340 NZDT Poukawa Region : 21 Feb 2023 1320 to 1500 NZDT Waipukurau, Papanu and Tukituki: 21 Feb 2023 09:50 to 13:40 NZDT Heretaunga Plains: 19-20 Feb 2023 NZDT

Data comprises: • 6160 ortho-rectified RGB GeoTIFF images in NZTM projection, tiled into the LINZ Standard 1:1000 tile layout. • Tile layout in NZTM projection containing relevant information.

The supplied imagery is in terms of New Zealand Transverse Mercator (NZTM) map projection. Please refer to the tile index layer for specific details, naming conventions, etc.

Additional services: • LINZ Basemaps for WMTS and XYZ services • ArcGIS Online for ArcGIS REST service

Index tiles for this dataset are available as layer Hawke's Bay 0.1m Cyclone Gabrielle Aerial Photos Index Tiles (2023)

This layer provides polygons of approximate flood areas derived from Sentinel-1 satellite radar imagery captured at various times on 14/02/2023 near the peak of the Cyclone Gabrielle event in the North Island of New Zealand. Areas of coverage for this layer include the Hauraki, Thames-Coromandel and Hastings Districts, and Napier City.

​(Note: More accurate and validated flood extent models for the Hawke’s Bay region can be obtained from Hawke’s Bay Regional Council - Flood Observation Extents.)

​This dataset was created by Toitū Te Whenua LINZ as part of its contribution to the emergency response, and is limited to areas that had a satellite pass over, and to the few areas of interest as we knew them at the time.

​**Accuracy** Users of this data should exercise caution . The accuracy of this data has not been validated. A subjective threshold was used to determine possible flood areas and eliminate false positives. Polygons in hilly areas or below a certain area size were excluded as likely false positives.

Please use this data as advisory only. The results have not been ground truthed and will contain errors and ommissions.

Much of the settled Hawke’s Bay region is low lying and built on river flood plains. This brings the risk of flooding, which is our most common natural hazard - a severe storm or flood happens every 10 years on average. Major storms affect wide areas and can be accompanied by strong winds, heavy rain or snowfall, thunder, lightning, and rough seas. They can cause damage to property and infrastructure, affect crops and livestock, disrupt essential services and cause coastal inundation.Rivers normally flood every winter when a storm brings more rainwater than can soak into the soil. When floods threaten communities the flood become a hazard. In Hawke's Bay stop banks have been built alongside many of the rivers to hold in the extra flood water. However in a severe storm, rivers could breach stop banks and the flood waters may go through farms, homes, shops, schools and damage roads and other infrastructure.There have been significant flood protection systems completed on the Heretaunga Plains and the Ruataniwha Plains. Flood protection works in Hawke’s Bay are generally designed to contain a 1% annual exceedance probability (AEP) flood). These works have significantly reduced the effect of small to medium sized floods, but a large flood could overwhelm the works and have a devastating effect. Such a flood, which exceeds the design capacity of the flood protection system, is called a Super Design Flood. Flooding from localised downpours in urban areas can also overwhelm drainage systems, so events below the AEP can still be costly.With climate change, rainfall patterns in the Hawke’s Bay are expected to change over the next century; winters are predicted to become drier, but overall flood risk is expected to increase as single events may be more intense.

Public transport is so important to the local economy and social well being of our region. HBRC plays a key role in planning, procuring, funding and promoting public transport. goBay bus services in and around Hastings, Flaxmere, Havelock North, Taradale and Napier are managed by Hawke's Bay Regional Council and operated by GoBus.

The Hawke's Bay Regional LiDAR 2020 project is part of the LINZ National Elevation Programme. The project encompasses the areas of Hawke's Bay Regional Council that overlap with Wairoa District Council, Hastings District Council, Napier City Council and Central Hawke's Bay District Council administration boundaries.This layer shows extent of the Hawke's Bay Regional LiDAR 2020 Project dataset and links to some sites were it and ancillary data can be accessed. It includes links to Hawke's Bay Regional Council Opendata Portal, LINZ LDS and OpenTopography Sites.For updates on the availability of the LIDAR data please contact gissupport@hbrc.govt.nzFirst created: 5 November 2021 Update and Maintenance Frequency: UnplannedMetadata Updated: 15 March 2023