E8F8BF2C5667C33DE040CD9B214425A6EnglishData Requests OfficerDepartment of Lands, Planning and EnvironmentGeospatial Services Unit (on behalf of department)Datarequests.DLPE@nt.gov.au2024-11-12AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile1.0 Northern Territory Land Systems2013-10-18This spatial dataset is a compilation of the Northern Land Systems (scale 1:250 000) and the Southern Land Systems (scale 1:1 000 000). Land Systems of the Northern Part of the Northern Territory is an amalgamation of 16 existing Land System surveys with modifications to some of the original interpretations. This land system dataset is the Northern Territory contribution to ASRIS (Australian Soil Resource Information System) national soils database at scale 1:250,000. Land Systems of the Southern Part of the NT (scale 1:1,000,000) is a compilation of 3 existing Land System surveys and the Atlas of Australian Soils (scale 1:2,000,000). It covers the southern part (approx 70%) of the Northern Territory. Published maps were made digital and edited to accommodate overlaps, gaps and mismatching boundaries. Where possible, the land system descriptions have been extrapolated into areas covered by the broader scale Atlas mapping. The land resource polygons were also aggregated into a separate dataset based on the field, ORIGINAL_SURVEY. Addtional details about the original land resource surveys were added to each record, including a link to the metadata and the technical reports. The dataset is called NTLS_1M_SURVEY_SOURCE. Download the spatial data package (contains spatial data, maps and reports) via https://data.nt.gov.au/ You are licensed to use this Northern Territory Government geospatial product 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 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: Copyright Northern Territory Government.English-26-101291382011-01-012013-10-18datasetnot knownComplete0not 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 knownThe legacy of inaccuracies associated with capturing historical paper mapping is still very much a feature of this coverage. Mapping boundaries have been scanned and digitised from paper maps. When overlain on a satellite image, the intention of the mapped boundaries is apparent, although the positional accuracy is still dependent on original map product.0not knownMany of the original Land System maps were only attributed with a mapunit (generally an abbreviation of the land system name from the accompanying report). The attribution of the Northern and Southern land system datasets continues to be a time intensive process involving repetitive perusal of published reports. A number of general purpose fields have been added to the coverage to add to its versatility and purpose, as well as keep account of its derivation and various modifications to it. Some of these are incomplete or still in progress. Attribute values, as described in the Data Dictionary below, have been added to each polygon.0NORTH: Land system surveys (1:250,000) have been undertaken in the NT since 1961. These surveys involved mapping boundaries on aerial photographs, collection and collation of extensive field information and ultimately the production of a report and series of maps. In some cases these surveys were very specific to their particular project area and no correlation was made with previous or adjoining work. In amalgamating these surveys modifications to some of the original interpretations has been necessary. There are currently 351 land systems that describe the northern part of the Northern Territory. 257 of these have been taken from published reports, the other 94 have been drafted from other sources and in many cases are interim designations. SOUTH: Land system surveys (1:1,000,000) have been undertaken in the NT since the 1940's. These surveys involved mapping boundaries on aerial photographs, collection and collation of extensive field information and ultimately the production of a report and series of maps. In some cases these surveys were very specific to their particular project area and no correlation was made with previous or adjoining work. In amalgamating these surveys modifications to some of the original interpretations has been necessary. There are currently 203 land systems that describe the southern part of the Northern Territory. 55 of these are sourced from the Atlas of Australian Soils dataset (1:2,000,000).