2DBCB771207006B6E040CD9B0F274EFEEnglishData Requests OfficerDepartment of Lands, Planning and EnvironmentGeospatial Services Unit (on behalf of department)Datarequests.DLPE@nt.gov.au2022-02-07AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile1.0NVIS Version 3.1 National Vegetation Information System, NT Data Compilation2000-01-142013-11-07ANZNT0001001047NVIS is a compilation of several surveys of varying scales, that were re-coded and re-attributed for the National Vegetation Information System (NVIS). This forms Theme 3 of the National Land & Water Audit of Australia, 2000 (NLWRA2000). The goal of the vegetation component (Theme 3) of the Audit is to "Develop a national information system that provides for easily accessible and nationally consistent data on the extent and condition of Australia's vegetation, thereby improving our ability to make better natural resource management decisions." Work for NVIS involved some line-work changes as well as creation of an attribute data-base for each original survey data set. For each survey a 'PRE1750' and an 'EXTANT' dataset was produced. The 'PRE1750' or 'pre-clearing' dataset represents, in theory, the vegetation that existed in that particular survey region before the arrival of the white man. In all, the surveys attributed to NVIS standard in the NT, this 'PRE1750' coverage was taken to be the original survey coverage produced. The 'EXTANT' or present day dataset represents, in theory, the present day (eg year 1998) vegetation coverage. This was produced by updating the 'PRE1750' dataset with cleared or modified vegetation. This dataset was recently renamed as NVIS_2007.Download the spatial data package (contains spatial data, maps and reports) via https://data.nt.gov.au/ You are licensed to use the DENR geospatial products on the terms and conditions set out in: Creative Commons Attribution 4.0 International Public License (CC BY 4.0) at: https://creativecommons.org/licenses/by/4.0/legalcode If you do not agree to the terms and conditions you must not use the geospatial products. You are free to copy, communicate and adapt the licensed material, provided that you abide by the licence terms (including Attribution) and attribute the licensed material using the statement: Supplied by the Department of Environment and Natural Resources. Copyright Northern Territory Government.English-25.998618-9.998585129.001218138.0012461998-01-012013-11-07datasetnot knownMapping and report completed to the NVIS standard.0not knownGIS editing tools were used to rectify all overshoots and undershoots in line work. Polygon topology rules applied are; must not overlap, must not have gaps and each polygon has only one label.0not knownRefer to each Dataset ID survey scale.0not knownAll coverage attributes as per the NVIS vegetation attribute framework (NLWRA 2000). These were determined from original survey reports (eg transcribed from information contained in survey report). Each polygon was recoded to the NVIS polygon coding system (Mapunit_ID attribute). Attribute values, as described in the Data Dictionary below, have been added to each polygon.0Existing survey datasets were compiled and re-attributed as per the NVIS vegetation attribute framework (NLWRA 2000). Line-work was altered were necessary. The original survey datasets were regarded as the 'PRE1750' datasets. A new dataset was created for the 'EXTANT' vegetation dataset. Information on metatdata and the attributes is contained in the NVIS Data Compiler for each survey. Datasets re-attributed for the NVIS project include the following. For information on original surveys see the original metadata record for that survey re. Lancewood Survey of the Northern Territory - ANZNT0001000084, NTLANCE1750/2000 Vegetation/Land unit Survey of Gregory National Park, NT - ANZNT0001000009, NTGREG1750/2000 Land Systems of Arnhem Land ** - ANZNT0001000222, NTARNHEM1750/2000 Vegetation Map of the Northern Territory ** - ANZNT0001000081, NTVEGMAP1750/2000 Land Units of the VRD Region - ANZNT0001000261, NTVRD1750/2000 Melaeuca Survey of the NT ** - ANZNT0001000114, NTMELA1750/2000 Land Units of Lucy Creek - ANZNT0001000262, NTLUCY1750/2000 Land Units of Erldunda - ANZNT0001000263, NTERLD1750/2000 Land Units of the Southern Gulf, NT - ANZNT0001000260, NTGULF1750/2000 (** changes were made to the original polygon line-work when transferring to NVIS)