Metadata : Land Resources of the Marrakai Area, Northern Territory.

Index:


Metadata Details:

Name: AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile

Version: 1.0

Date Metadata Extracted: 2017-02-21

Date Metadata Last Updated: 2016-06-29

Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=2DBCB771210206B6E040CD9B0F274EFE

Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=2DBCB771210206B6E040CD9B0F274EFE


Citation

ANZLIC Identifier: 2DBCB771210206B6E040CD9B0F274EFE

Title: Land Resources of the Marrakai Area, Northern Territory.

Citation Date: 2000-01-14

Date Type: publication

Custodian: Department of Environment and Natural Resources


Description

Abstract:

This spatial dataset, surveyed at a scale of 1:25000, provides polygon information on the map unit boundaries of the Marrakai Area, Northern Territory and includes a detailed description of the landform, soils and vegetation of each land unit. The survey area covers 580km2 to the east of the Adelaide River and south of the Arnhem Highway. The purpose of this survey was to map, describe and evaluate land to assist in future land use planning and management.

The polygon linework was redrawn in 2014 and an addtional land unit, 3b1, was created. This land unit is not described in the report. The soil description is similar to 3b however the dominant vegetation type is Dry Rainforest.

ANZLIC Search Words:

Spatial Domain:

Bounding Coordinates:


Dataset Status

Dataset ID: ANZNT0782000108

Language: English

Character Set: Latin 1

Progress: completed

Maintenance and Update Frequency: notPlanned

Data Currency Start Date: 1980-01-01

Data Currency End Date: 2014-09-10

Access Constraint: Please note data supplied by this Department is licensed under the Creative Commons license Attribution-Non-commercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0), https://creativecommons.org/licenses/by-nc-sa/4.0/

Data and all derivatives, must be attributed with this statement - Data supplied by Department of Environment and Natural Resources. ᄅ Copyright Northern Territory of Australia


Data Quality

Lineage: Map unit boundaries delineated from aerial photographs. Aerial photography scanned and rectified. Linework digitised on screen directly from original aerial photographs.

Map unit boundaries derived using aerial photography and digital satellite imagery, geological and topographic data. Field data (site information) described and classified according to national standards at the time of capture.

Map unit polygons collected via geographic information system (ARC/MapInfo). Core landform, soil and vegetation attributes attached to map units with additional attributes unique to individual surveys.

Positional Accuracy: POLYGON DATA
Map unit boundaries digitised on screen directly from digital rectified aerial photographs. Level of accuracy depends on the number of control points on individual aerial photographs. Control points include creek lines, cadastre and other topographic features. Depending on the nature of the landscape (the number of control points), positional accuracy may vary. Positional accuracy generally considered high to very high.

POINT SOURCE DATA
Site point coordinates derived from a geographic positioning system with general accuracy of within 10-50m.

Attribute Accuracy: Attributes assigned according to the dominant feature. For example, where ten sites have been grouped to describe a particular map unit and two different soils described from these sites then the dominant soil is chosen. Core attribute values, as described in the Data Dictionary below, were added to each map unit polygon in Sept 2014.

Logical Consistency: GIS 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.

Completeness: Complete


Contacts

Name Organisation Position Role