Geoscape Australia

Trees

Metadata Statement

Metadata for the Metadata 
  • Metadata Identifier: Trees
  • Scope: Trees Dataset
  • Time: 01/07/2022
  • Responsible Party: 
    • Contact Point: Michael Dixon 
    • Organisation: Geoscape Australia 
    • Position: Chief Data Officer 
    • Telephone: +61 2 6260 9000 
    • Delivery point: Unit 6, 113 Canberra Ave Griffith ACT 2603 Australia 
  • Access, Use, Security: Information supplied within the metadata may not be copied without referencing Geoscape Australia.
  • Standard: ISO 19115-1 based on the ANZLIC/ICSM Metadata Working Group https://www.icsm.gov.au/sites/default/files/Poster%20-%20Best%20Practice%20for%20Datasets%20Metadata%20v1.pdf
  • Language: English
Resource Metadata 
  • Title: Trees
  • Identifier: Trees
  • Abstract: Trees is a raster dataset representing trees across Australia. The Trees theme consists of two layers: (1) Trees and (2) Trees Metadata. The Trees layer consists of a digital pixel representation of tree coverage and their associated heights derived through DEMs, while the Trees Metadata layer represents any manipulations or insight into Trees layer pixels values or absence thereof. The theme is comprised of pre-defined urban areas at a two-metre resolution. The distribution corresponds to the Tree type pixel in the Urban Surface Cover product.
  • Purpose: The purpose of the Trees product is to represent trees and their heights for use by industry and government in geographic information systems and/or other information systems.
  • Time:  Trees updates are applied and released on a quarterly schedule.
  • Responsible Party: 
    • Contact Point: Geoscape Support
    • Organisation: Geoscape Australia 
    • Telephone: +61 2 6260 9000 
    • Facsimile: +61 2 6260 9001 
    • Delivery point: Unit 6, 113 Canberra Ave Griffith ACT 2603 Australia 
  • Access, Use Security 
    • Legal Constraints: The dataset is available under licence from Geoscape Australia and authorised partners. Data usage is in accordance with the Geoscape Copyright Notice and Disclaimer available https://geoscape.com.au/legal/data-copyright-and-disclaimer/ 
    • Security Constraints: N/A 
    • Use Limitations: The Trees dataset is a representation of tree objects and related characteristics. Remotely sensed inputs including imagery sources and elevation models have absolute and relative positional accuracy limitations and so precise navigation with respect to represented objects may require additional qualification.    
    • Releasability: The dataset should only be distributed in accordance with the licence under which it has been accessed. 
  • Extents:  
North Bounding Latitude: –9 South Bounding Latitude: -44
West Bounding Longitude: +100 East Bounding Longitude: +160
  • Reference System: 
    • Spatial Reference System: GDA94 and GDA2020 
    • Vertical Datum: The Australian Height Datum (AHD) 
    • Temporal Reference System: Gregorian calendar 
  • Language: English 
  • Format: The data is made available in GeoTiff format, other formats may be available through distribution partners.
  • Additional Information: A Product Guide for the dataset is available from Geoscape Australia. Release Reports are made available at the time product updates are released.
  • Linked Services & applications: Related products and services are available via www.geoscape.com.au 
  • Status: Complete  
  • Lineage: 

    • The Trees theme consists of two layers: (1) Trees and (2) Trees Metadata. The Trees layer consists of a digital pixel representation of tree coverage and their associated heights derived through DEMs, while the Trees Metadata layer represents any manipulations or insight into Trees layer pixels values, or absence thereof. The Theme is comprised of pre-defined “Urban” (see below) areas at a two-metre resolution. The distribution corresponds to the Tree type pixel in the Urban Surface Cover product.

    • Data quality and potential capture timelines will vary across Australia based on three categories. Each category has been developed based on several factors defined by the population distribution (categorised based on population size), industrial/commercial activities, the probability of natural events (e.g. flooding) and the image source. 

        • Urban (satellite source) – areas with a population greater than 200, or with significant industrial/commercial activity in a visual assessment, digitised from satellite imagery  

        • Urban (aerial source) – areas with a population greater than 200, or with significant industrial/commercial activity in a visual assessment, digitised from aerial imagery 

        • Rural – all other areas 

  • Associated Resource: Further product documentation including a Product Guide and a Release Report are published at the time of a dataset update.
  • Maintenance: 
    • Trees updates will be applied and released on a quarterly schedule.
  • Storage:  The Trees dataset is managed by Geoscape Australia.
  • Distribution: The dataset is available from multiple locations.
    • From Geoscape Australia and authorised re-sellers; 
      • Organisation: Geoscape Australia 
      • Telephone: +61 02 6260 9000 
      • Mailing address: Unit 6, 113 Canberra Ave Griffith ACT 2603 Australia 
      • Authorised Resellers: Available via https://geoscape.com.au/partners/ 
  • Topic Category: Dataset metadata 
  • Keywords:  Trees, Tree height, Unspecified Vegetation, Surface Cover datasets, Surface Cover.