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National Vegetation Information System (NVIS) Version 5.1 - Australia - Key Layer for the Sources of Estimated Pre-1750 Vegetation Data

Created 03/09/2018

Updated 09/08/2023

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This key layer is the index to the input datasets collated into the estimated Pre-1750 (pre-clearing, pre-European) theme of the NVIS Version 5.1 dataset (from which the NVIS Major Vegetation Groups and Subgroups were derived).

The layer is intended to document and describe the input datasets and assist in dynamic analyses of data quality and gaps in the NVIS Pre-1750 theme dataset. Important information in the spatial feature class includes the dataset spatial extent (i.e. its "footprint"), dataset number and the source of the underlying dataset. Where more than one dataset have been combined within a region (mainly NSW & NT), a complex of footprints is the result.

A lookup table provides important information, such as dataset title, scale and the on-ground range of dates of the vegetation survey. Attributes in the lookup table NVIS5_1_LUT_KEY_DSETn (from the NVIS DATASET and VERSION_USAGE Oracle tables, where n = an incremental number for minor version updates) need to be attached to this spatial data via DATA_SET_NUMBER. See metadata for this LUT for more details.This data has been licensed under the Creative Commons Attribution 4.0 International Licence. More information can be found at https://creativecommons.org/licenses/by/4.0/

You are free to: Share — copy and redistribute the material in any medium or format Adapt — remix, transform, and build upon the material for any purpose, even commercially. CC - Attribution (CC BY) You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Suitable for understanding and mapping various NVIS data source and quality attributes.

Applications involving futher use of the data may need to resolve the minor, but numerous, sliver and overlap issues.

In an attempt to mitigate this issue, artificial vector layers were created for SA and ACT by cutting present native vegetation into the Carnahan estimated pre-1750 data for these areas. This assumes no change in vegetation type - just whether the type remains (i.e. hasn't been cleared).

No vector estimated pre-1750 layers are available for NSW and Tasmania. However, estimated pre-1750 layers have been developed under the Major Vegetation Group and Major Vegetation Subgroup products, using the same logic as above. © Commonwealth of Australia (Department of the Environment and Energy) 2018

Files and APIs

Tags

Additional Info

Field Value
Title National Vegetation Information System (NVIS) Version 5.1 - Australia - Key Layer for the Sources of Estimated Pre-1750 Vegetation Data
Language English
Licence Creative Commons Attribution 4.0 International
Landing Page https://data.gov.au/data/en/dataset/3c796c41-d47f-4481-ac46-53ce55f08d72
Contact Point
Australian Government Department of Climate Change, Energy, the Environment and Water
metadata@environment.gov.au
Reference Period 03/09/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        112.9215,
        -43.664038
      ],
      [
        153.63831,
        -43.664038
      ],
      [
        153.63831,
        -9.14129
      ],
      [
        112.9215,
        -9.14129
      ],
      [
        112.9215,
        -43.664038
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "National Vegetation Information System (NVIS) Version 5.1 - Australia - Key Layer for the Sources of Estimated Pre-1750 Vegetation Data". Please visit the source to access the original metadata of the dataset:
https://data.gov.au/data/dataset/national-vegetation-information-system-nvis-version-5-1-australia-key-layer-for-the-sources-of-1