Extents for the latest and historic aerial imagery collections on Canterbury Maps. This includes the extents for aerial imagery captured during historic events.Where can I find the imagery?You can find these imagery collections in the basemap in the Canterbury Maps Maps Viewer, add them to the map viewer via the add data widget or use the imagery slider on Property Search.Where can I download these images?For recent imagery collections please visit the Canterbury Maps Aerial Imagery help page.For historical imagery collections, please visit the Historic Imagery Collections (HIR) or visit RetroLens. You may also find additional images in RetroLens which are not available on Canterbury Maps.How do I find imagery extents for a collection or year?Filter by Year or Collection to find extents of historical imagery collections.Where to find Latest Imagery Extents?For more information and accurate extents of the latest imagery collection please visit the Latest Imagery Extents layer.

Orthophotography for the Canterbury region taken between April 2004 and March 2010. Coverage encompassed the entire Canterbury region.

Note: There are currently 358 missing tiles from the dataset.

Imagery was captured for the ‘Environment Canterbury’ Terralink International.

Data comprises: •5,593 x ortho-rectified RGB GeoTIFF images, tiled into 1:5,000 tile layout •Tile layout containing relevant information.

The products are tiled into 1:5,000 tiles. Please refer to the supplied tile layout shape file for specific details, naming conventions, etc.

Imagery supplied as 75cm pixel resolution (0.75m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy varies from +/-3.0 m to +/-10m, please refer to the supplied tile layout shape file for specific accuracy.

Index tiles for this dataset are available as layer Canterbury 0.75m Rural Aerial Photos Index Tiles (2004-2010)

Orthophotography within the Canterbury Region captured in the flying season of 2022-2023. Coverage encompasses imagery over Christchurch City and the Banks Peninsula region.

Imagery was captured for Environment Canterbury by Landpro Ltd, 13 Pinot Noir Drive, Cromwell 9310, New Zealand.

Data comprises: • 6854 ortho-rectified RGB GeoTIFF images in NZTM projection, tiled into the LINZ Standard 1:500 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.

Imagery supplied with a 7.5cm pixel resolution (0.075m GSD).

Also available on: • LINZ Basemaps • NZ Imagery - Registry of Open Data on AWS

Index tiles for this dataset are available as layer Christchurch 0.075m Urban Aerial Photos Index Tiles (2023)

Historic Aerial Imagery Footprints in the Canterbury region.

Orthophotography within the Canterbury Region captured in the flying season of 2021-2022. Coverage encompasses Hurunui, Kaikoura, Mackenzie, Waimakariri and Waimate districts.

Imagery was captured for Environment Canterbury by Landpro Ltd, 13 Pinot Noir Drive, Cromwell 9310, New Zealand.

Data comprises: • 2184 ortho-rectified RGB GeoTIFF images in NZTM projection, tiled into the LINZ Standard 1:5000 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.

Imagery supplied as 30cm pixel resolution (0.3m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is <1m at 90% confidence level in clear flat areas.

Index tiles for this dataset are available as layer Canterbury 0.3m Rural Aerial Photos Index Tiles (2022)

Orthophotography within the Canterbury Region taken in the flying seasons (summer periods) 2019-2020. Coverage is of the Canterbury region covering part of the Banks Peninsula area.

Imagery was captured for Environment Canterbury by Aerial Surveys Ltd, Unit A1, 8 Saturn Place, Albany ,0632, New Zealand.

Data comprises: •1779 ortho-rectified RGB GeoTIFF images in NZTM projection, tiled into the LINZ Standard 1:500 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 index tiles layer for specific details, naming conventions, etc.

Imagery supplied as 7.5 cm pixel resolution (0.075 m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is ±0.15 m @ 68% confidence level.

Index tiles for this dataset are available as layer Banks Peninsula 0.075m Urban Aerial Photos Index Tiles (2019-2020)

Orthophotography of the area affected by the Christchurch Earthquake, 22 February 2011 for the Christchurch Response Centre (CRC).

Imagery was captured by NZ Aerial Mapping Ltd, 208 Warren Street, PO Box 6, Hastings 4156, New Zealand to support the response to the 22 February 2011 earthquake in Canterbury.

Data comprises: •1,785 x ortho-rectified RGB GeoTIFF images in NZTM projection, tiled into the LINZ Standard 1:1,000 tile layout •Tile layout in NZTM projection containing relevant information.

The supplied imagery is in terms of New Zealand Transverse Mercator (NZTM) map projection. The products are tiled into NZTopo50 1:1,000 tiles. Please refer to the supplied tile layout shape file for specific details, naming conventions, etc. Imagery supplied as 10cm pixel resolution (0.1m GSD), 3-band (RGB) uncompressed GeoTIFF.

Index tiles for this dataset are available as layer Christchurch Post-Earthquake 0.1m Urban Aerial Photos Index Tiles (24 February 2011)

Intended UseThe River Network is a geometric network and should be used for visualising the main rivers, streams and drains in Canterbury. It forms the basis for the Rivers for Allocation layer and Stream Depletion Calculations, which link to the Water Allocation Calculator— allocation summary reports to be used by the Customer Services, Planning, Consents, and Science teams. The River Network is based on LINZ river layer and aerial imagery. Attributes include Māori and English river names, river type, feature type, and source metadata. The River Network is hydrologically connected and traceable. Attributes still to be assigned to network include drain type, permanence, and bed extent. Attributes from NIWA’s River Environment Classification (REC) layer that make up the river type classification (network position, climate, source of flow, geology, landcover and valley landform) have been spatially associated but still need to be quality checked. DisclaimerThis information is accurate to the best of Environment Canterbury’s knowledge and belief. While Environment Canterbury has exercised reasonable skill and care in the preparation, recording and management of this information, this information may be subject to changes as more information becomes available. Environment Canterbury accepts no liability in contract, tort or otherwise for any direct, indirect, consequential or incidental damage, loss, injury or expense that arises from any errors in the information, whether due to Environment Canterbury or a third party, or that arises from the provision, use, or misuse, of the information available from this site. Attribute InformationRiver Information:RiverName – name of river, catchment, or surface water body as defined by LINZMāoriName – Māori name of river, catchment, or surface water body as defined by LINZDrainType – type of drain, as described in Hinds drains layer (i.e. Main, Secondary)Permanence – permanence of river flow (i.e. Perennial (P), Ephemeral (E), Intermittent (I)); null values for now, as these category definitions still need to be agreed upon across teamsBedExtent – width of the riverbed; will accompany braided river polygon layerRiverType – river classification based on REC characteristics and water quality scientist review; values have been spatially derived, but need to be reconfirmedFeatureType – type of line feature (i.e. river, drain, braided river centreline)Environmental Characteristics: see REC attributes metadataClimate – affects patterns of water quality, flood frequency, low flow period, evapotranspiration; climate categories (i.e. warm-dry WD, cool-extremely-wet CX)SourceOfFlow – topography influences sediment patterns, erosion, precipitation storage, and river form; flow categories assigned using a mix of topographic data (i.e. glacial-mountain GM, mountain M, hill H, low-elevation L, lake Lk) and manual designation (i.e. spring Sp, wetland W, regulated R)Geology – catchment geology controls groundwater storage capacity and transmissivity; developed from the toprock category in the Land Resources Inventory (LRI) (i.e. alluvium Al, hard sedimentary rocks HS, soft sedimentary SS, volcanic basic VB, volcanic acidic VA, plutonics Pl, miscellaneous M)Landcover – control for rainfall capture or runoff and potential evapotranspiration; categories developed from New Zealand Land Cover Database (LCDB) (i.e. bare ground B, indigenous forest IF, scrub / tussock T, pastoral P, exotic forestry EF, urban U)NetworkPosition – stream order relates to river form (i.e. low-order LO for headwater streams, middle-order MO for tributaries, high-order HO for main stems)ValleyLandform – indicative of geology and geomorphology, including erosive / depositional setting; derived from slope (i.e. high-gradient HG, medium-gradient MG, low-gradient LG) GIS Attributes:Spatial IDs: ObjectID, GlobalIDSpatial Fields: Shape, Shape.STLength()Source – data source (LINZ river lines, aerial imagery, ECan)SourceNote – note about data source (i.e. specific source layer)History Fields: CreatedBy, CreatedDate, ModifiedBy, ModifiedDate

Orthophotography within the Canterbury Region captured in the flying season of 2022-2023. Coverage encompasses locations within the Timaru District including Geraldine, Orari, Winchester, Temuka, Pleasant Point, Timaru city, and Pareora.

Imagery was captured for Environment Canterbury by Landpro Ltd between the 29 December 2022 and 2 March 2023.

Data comprises: • 1176 ortho-rectified RGB GeoTIFF images in NZTM projection, tiled into the LINZ Standard 1:500 tile layout. • Tile layout in NZTM projection containing relevant information.

Imagery supplied with a 7.5cm pixel resolution (0.075m GSD).

Also available on: • LINZ Basemaps • NZ Imagery - Registry of Open Data on AWS

Index tiles for this dataset are available as layer Timaru 0.075m Urban Aerial Photos Index Tiles (2022-2023)

Orthophotography captured over three urban areas within the Canterbury Region totalling approximately 36km2. The areas of capture cover Prebbleton, Kirwee, and Arthur's Pass in the Selwyn District.

Imagery was captured for Environment Canterbury by Aerial Surveys Ltd, Unit A1, 8 Saturn Place, Albany 0632, New Zealand.

Data comprises: • 516 ortho-rectified RGB GeoTIFF images in NZTM projection, tiled into the LINZ Standard 1:500 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.

Imagery supplied as 7.5cm pixel resolution (0.075m GSD), 3-band (RGB) uncompressed GeoTIFF. The final spatial accuracy is ±0.15m at 68% confidence level in clear flat areas.

Index tiles for this dataset are available as layer Selwyn 0.075m Urban Aerial Photos Index Tiles (2019)