Metropolitan Adelaide Canopy and Permeability Statistics 2018-19

Dataset Number2613
Dataset TitleMetropolitan Adelaide Canopy and Permeability Statistics 2018-19
CustodianData Authority: Department for Environment and Water
Data Provider: Department for Environment and Water

Description

DescriptionThese tables provide summary statistics relating to tree canopy cover, surface permeability and building footprints across metropolitan Adelaide, based on LiDAR and multispectral imagery captured in 2018 and 2019. Statistics are provided for local government area and suburb boundaries.
UsageInform decision making in relation to urban greening activities by DEW, the Green Adelaide Landscape board and partner agencies.

Data Quality

LineageLiDAR and multispectral imagery was captured in 2018 and 2019 and used to map tree canopy, building footprints and surface permeability across 18 local government areas (LGAs) in metropolitan Adelaide. These datasets were analysed in Esri's ArcMap 10.6 software using zonal statistics tools to generate summary statistics within the 18 LGAs and their corresponding suburbs. Suburbs with less than 50% data coverage were excluded. The statistics are presented in separate tables (one each for LGAs and suburbs), and can be joined onto the GIS datasets for LGAs (LMS record #42) and suburbs (LMS record #754) using the ABBNAME and SUBURB fields respectively. The tree canopy dataset was used to generate the percentage of canopy cover (>3m) within each LGA/suburb, as well as the percentage of canopy cover within specified height classes and the average canopy height. The building footprint dataset was used to generate the percentage of building areas within each LGA/suburb. The surface permeability dataset was used to generate the percentage of permeable surfaces, impermeable surfaces and water within each LGA/suburb (permeable and impermeable surfaces are further broken down into ground level and above ground surfaces, per the original classification). The coverage of each dataset within each LGA/suburb was also calculated to indicate LGAs/suburbs where data is incomplete. All datasets were analysed in raster format using the supplied spatial resolution of each dataset (1m for tree canopy, 1m for building footprints and 0.5m for surface permeability), using the GDA 1994 MGA Zone 54 coordinate system. Statistics were rounded to two decimal places (except data coverage statistics which were rounded to an integer and average height which was rounded to one decimal place). Some rounding errors may exist in the data. Note that there may be slight differences to the statistics presented in the canopy cover benchmarking report (Holt 2020) due to methodological differences.
CompletenessThe statistics include 18 metropolitan Adelaide LGAs with either complete or partial data coverage, and any suburbs with at least 50% data coverage. The 'CanopyCover_Coverage', 'BuildingFootprints_Coverage' and 'Permeability_Coverage' fields indicate the data coverage within each LGA/suburb.
Positional AccuracyThe tree canopy and building footprints input datasets have a spatial resolution of 1m and the surface permeability input dataset has a spatial resolution of 0.5m. The zonal statistics tools convert the LGA and suburb datasets to a raster with the same spatial resolution as the input dataset prior to generating any statistics.

Geographic Extent

Extent NameGreater Adelaide
Min Easting or Longitude138
Min Northing or Latitude-35
Max Easting or Longitude138
Max Northing or Latitude-34

Dataset Status

Initially AcquiredOctober 2021
Last UpdatedOctober 2021
Update FrequencyAs required
Maintenance MethodStatistics relate to datasets originally captured in 2018 and 2019. Updated statistics will be generated when datasets are recaptured in the future.
LicenseingCC BY (Attribution)

Attributes

TableNameField AliasData TypeDescription
Metropolitan Adelaide canopy and permeability statistics 2018-19ABBNAMEN/AtextAbbreviated name of local government area (...LGA.csv only)
Metropolitan Adelaide canopy and permeability statistics 2018-19LGAN/AtextName of local government area (...LGA.csv only)
Metropolitan Adelaide canopy and permeability statistics 2018-19SUBURBN/AtextSuburb name (...suburb.csv only)
Metropolitan Adelaide canopy and permeability statistics 2018-19CanopyCoverN/ADoublePercentage of LGA/suburb with tree canopy cover (>3m)
Metropolitan Adelaide canopy and permeability statistics 2018-19AvgCanopyHeightN/ADoubleAverage height of the canopy in metres
Metropolitan Adelaide canopy and permeability statistics 2018-19CanopyStrata_3_5N/ADoublePercentage of the LGA/suburb with canopy 3-5 m in height
Metropolitan Adelaide canopy and permeability statistics 2018-19CanopyStrata_6_10N/ADoublePercentage of the LGA/suburb with canopy 6-10 m in height
Metropolitan Adelaide canopy and permeability statistics 2018-19CanopyStrata_11_15N/ADoublePercentage of the LGA/suburb with canopy 11-15 m in height
Metropolitan Adelaide canopy and permeability statistics 2018-19CanopyStrata_16_20N/ADoublePercentage of the LGA/suburb with canopy 16-20 m in height
Metropolitan Adelaide canopy and permeability statistics 2018-19CanopyStrata_21_25N/ADoublePercentage of the LGA/suburb with canopy 21-25 m in height
Metropolitan Adelaide canopy and permeability statistics 2018-19CanopyStrata_26_30N/ADoublePercentage of the LGA/suburb with canopy 26-30 m in height
Metropolitan Adelaide canopy and permeability statistics 2018-19CanopyStrata_31_40N/ADoublePercentage of the LGA/suburb with canopy 31-40 m in height
Metropolitan Adelaide canopy and permeability statistics 2018-19CanopyStrata_41_50N/ADoublePercentage of the LGA/suburb with canopy 41-50 m in height
Metropolitan Adelaide canopy and permeability statistics 2018-19CanopyStrata_51_60N/ADoublePercentage of the LGA/suburb with canopy 51-60 m in height
Metropolitan Adelaide canopy and permeability statistics 2018-19CanopyCover_CoverageN/AIntegerPercentage of LGA/suburb which has canopy cover data available
Metropolitan Adelaide canopy and permeability statistics 2018-19BuildingFootprintsN/ADoublePercentage of LGA/suburb with building footprints
Metropolitan Adelaide canopy and permeability statistics 2018-19BuildingFootprints_CoverageN/AIntegerPercentage of LGA/suburb which has building footprint data available
Metropolitan Adelaide canopy and permeability statistics 2018-19Permeable_GroundN/ADoublePercentage of LGA/suburb with permeable surfaces (classified at ground level)
Metropolitan Adelaide canopy and permeability statistics 2018-19Permeable_AboveGroundN/ADoublePercentage of LGA/suburb with permeable surfaces (classified above ground level)
Metropolitan Adelaide canopy and permeability statistics 2018-19PermeableN/ADoublePercentage of LGA/suburb with permeable surfaces
Metropolitan Adelaide canopy and permeability statistics 2018-19Impermeable_GroundN/ADoublePercentage of LGA/suburb with impermeable surfaces (classified at ground level)
Metropolitan Adelaide canopy and permeability statistics 2018-19Impermeable_AboveGroundN/ADoublePercentage of LGA/suburb with impermeable surfaces (classified above ground level)
Metropolitan Adelaide canopy and permeability statistics 2018-19ImpermeableN/ADoublePercentage of LGA/suburb with impermeable surfaces
Metropolitan Adelaide canopy and permeability statistics 2018-19WaterN/ADoublePercentage of LGA/suburb covered by water
Metropolitan Adelaide canopy and permeability statistics 2018-19Permeability_CoverageN/AIntegerPercentage of LGA/suburb which has permeability data available
Metropolitan Adelaide canopy and permeability statistics 2018-19LGAAreaHaN/ADoubleArea of the LGA in hectares (calculated in GDA 1994 MGA Zone 54) (...LGA.csv only)
Metropolitan Adelaide canopy and permeability statistics 2018-19SuburbAreaHaN/ADoubleArea of the LGA/suburb in hectares (calculated in GDA 1994 MGA Zone 54) (...suburb.csv only)

Contact Information

OrganisationDepartment for Environment and Water
Information
Postal AddressGPO Box 1047

ADELAIDE
SA 5001
EmailDEWNR.Mapland@sa.gov.au