Metadata : Land Resources of the Daly Basin

Index:


Metadata Details:

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

Version:1.0

Date Metadata Extracted:2024-06-16

Date Metadata Last Updated:2014-11-19

Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=2DBCB771203E06B6E040CD9B0F274EFE

Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=2DBCB771203E06B6E040CD9B0F274EFE


Citation

ANZLIC Identifier:2DBCB771203E06B6E040CD9B0F274EFE

Title:Land Resources of the Daly Basin

Citation Date:2000-01-14

Date Type:publication

Custodian:Department of Environment, Parks and Water Security


Description

Abstract:

This polygon spatial dataset, the Land Resources of the Daly Basin, is a compilation of several existing land resource surveys describing landform, soils and vegetation at a survey scale of 1:50,000. Refer to the land resource survey listing under Supplementary Information.

The original land unit survey report was published by Aldrick and Robinson (1972) over the Katherine-Douglas Area. Land resource descriptions are sourced from the original report and adjacent surveys. New units found in the adjacent survey areas were appended to those already noted in the original report. Information is generally interpreted to indicate land capability for a range of land uses and provides a basis for identifying the extent and distribution of land resources.

The total surveyed area of 18,390km2 is located over the Daly Basin bioregion. Fieldwork was undertaken between 1968 and 1984.

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Dataset Status

Dataset ID:ANZNT0001000231

Language:English

Character Set: Latin 1

Progress:completed

Maintenance and Update Frequency:notPlanned

Data Currency Start Date:1968-07-01

Data Currency End Date:1984-06-07

Access Constraint:

Download the spatial data package (contains spatial data, maps and reports) via 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: 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.


Data Quality

Lineage:Original map unit boundaries delineated from aerial photographs and stereoscope interpretation. Map units transferred to clean dyeline sheets or topographic maps via a mapograph. Original maps were hardcopy only. With the advent of geographic information systems polygons were digitised by rectifying the original hard copy maps.

Map unit boundaries derived using hard copy aerial photography and stereoscope, satellite imagery (post 1993), geological and topographic maps. Field data (site data) described and classified according to national standards at the time of capture.

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

Positional Accuracy:POLYGON DATA
Hardcopy maps rectified using control points marked on original hardcopy maps. 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 moderate.

POINT DATA
Survey teams navigated during field operations with topographic maps, aerial photographs and prismatic compass's. Point source locations marked on aerial photography in the field. Positional accuracy considered within 300m but generally below 200m depending on the terrain. Site coordinates derived by transferring site locations from aerial photographs to topographic maps and coordinates calculated. In some cases sites have been georeferenced directly from aerial photography to Google Earth Web Map Server in MapInfo or ArcGIS.

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. Attribute values, as described in the Data Dictionary below, have been assigned to each polygon.

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

NameOrganisationPositionRolePhoneFaxEmail
Data Requests OfficerDepartment of Environment, Parks and Water SecurityGeospatial Services Branch (on behalf of department)distributordatarequests.depws@nt.gov.au

Data Dictionary

AttributeAttribute DescriptionPossible CodeCode Description
ADDITIONAL FIELDSPlease note: Additional fields beyond the Department standard core attributes are also included in this dataset relating to Soil Drainage Descriptions, Land Use Limitation and Parent Matter descriptions.
AG_CLASSAgricultural Class and Descriptions.
Ag Classes have been derived from an interpretation of the land units. Soil-landscape characteristics that present limitations to agriculture include soil depth, gravel content, soil texture, steep slopes, rock outcrop, water holding capacity, drainage and erosion risk. The presence and extent/severity of these limitations are used to differentiate agricultural classes. They do not take into account other information such as water resource or biodiversity information.
Agricultural classes do not represent agricultural capability. To assess agricultural capability, it is essential that the requirements of a specific crop or pasture species are matched to the properties of the soil-landscape at the site. This should be determined by on-site field investigation.
DOUBLE_LABAlias: Land Unit Other Component
This applies ONLY to surveys with land units that have double labels, for example 5a/5c. This field is used to acknowledge that this land unit contains another component (in this example 5c).
LAND_UNITAlias: Land Unit
the land unit label from the spatial dataset (eg 9a2)
LF_CLASSAlias: Landform Classification
the landform classification has been adopted by the dept across a number of surveys since 2000 to group land units into broad landform entities
LF_DESCAlias: Landform Description
includes details about landform, and usually general notes pertaining to slope, surface gravel and other details describing the land unit.
SOILAlias: Dominant Soil Order
The dominant soil order described in a land unit is recorded.
SOIL_DESCAlias: Soil Description
includes an ASC or Northcote/other soil classification and usually includes colour, soil depth and other notes describing the soil.
SOIL_SYSAlias: Soil Classification System
used to describe the soil in the land unit description. It is recommended that where possible soils are translated to an order in the Australian Soil Classification (Isbell 2003).
SPECIES_1Alias: Veg Species 1
The dominant vegetation species described in a land unit are recorded under SPECIES_1, SPECIES_2 and SPECIES_3 respectively using non abbreviated Latin names. The order of species listed determines their dominance.
SPECIES_2Alias: Veg Species 2
where 2 dominant vegetation species are recorded in a land unit
SPECIES_3Alias: Veg Species 3
where 3 dominant vegetation species are recorded in a land unit
SURVEY_IDAlias: Survey Identifier
the first five characters from the corporate survey code
SURVEY_NMEAlias: Survey Name
the full name of the report to which the mapping refers (or the original survey report if several surveys have been amalgamated)
VEG_DESCAlias: Vegetation Description
Vegetation community is described; dominant species and its structure are recorded.
VEG_STRUCAlias: Vegetation Structure
The dominant vegetation structure in a Land unit is recorded. It is determined according to the Vegetation Classification scheme used to derive the data.
VEG_SYSAlias: Veg Classification System
vegetation classification system used to determine and describe the vegetation structure in a Land unit description.

Supplementary Information

Department Survey Code:DBSN_50
A series of map products have also been created for this land resource survey - available for download via NR Maps NT, refer: lrm.nt.gov.au/nrmapsnt
Bibliographic Reference: Report on the Land Units of the Katherine-Douglas Area, NT. 1970 - Aldrick J.M., and Robinson, C.S. (1972); Land Conservation Series No. 1, Darwin, N.T.
This report may be downloaded as a PDF from the Northern Territory Library: hdl.handle.net/10070/228373

Original land resource surveys included in this spatial compilation, are;
2. Land Units of the Douglas Area Supplement to The Daly Basin Report. - Van Cuylenburg, H.R. (1973)
3. A Report on the Land Units of Selected Areas of Manbulloo Station, N.T. - Gibbs, C.R., Wells, M. R. & Van Cuylenburg, H.R. (1976); Report hdl.handle.net/10070/228635
4. Report of the Land Units of Mataranka North Station. - Gibbs, C.R. & Van Cuylenburg, H.R. (1978); Report http://hdl.handle.net/10070/228482
5. Report on the Land Units of the Dorisvale Area Dorisvale Station and Vacant Crown Land East of Dorisvale station to the Daly River. - Wood, B.G. (1978); Report http://hdl.handle.net/10070/228580
6. Preliminary Report on the Land Units of the Fenton Area, Douglas Station, N.T. - Lucas, S.J. & Siversten, D.P. (1980); Prelim Report http://hdl.handle.net/10070/229015 Report hdl.handle.net/10070/230471
7. Land Units of the Fish River- Oolloo area, N.T. - Aldrick, J. (1984); Report http://hdl.handle.net/10070/227803
8. Land Units of part of Tipperary Station - Lynch, B.T. & Wood, B. G. (1988); Report 1 http://hdl.handle.net/10070/230245 Report 2 http://hdl.handle.net/10070/229608

This record maintained using the NTLIS Metadata Tool