Contacts

Identifiers and Keywords

ANZLIC Id

ANZVI0803001076 

Jurisdiction

Victoria 

Topic category

• Environment
• Boundaries

Resource Constraints

Classification

Limited Distribution  

Other Dataset Details

Date ( Revision )

2018-11-15

Status

Obsolete  

Purpose

LANDMMT25 is the key operational layer specifying public land use and management (such as in forest management planning and catchment co-ordination, etc.) undertaken by NRE. This dataset is now obsolete. 

Credit

Anthony Griffiths, Marg Coonan-Jones, Phill King 

Format

DIGITAL Arc/Info Revision 7 Librarian layer 1 

Supplemental Information

History: The LANDMMT100 data set was created to facilitate the management of Public Land by NRE. This 1:100 000 data set was to provide a Statewide dataset in a reasonably short period of time giving managers and planners a tool that would allow them to plan at this small management scale.<P>The operational scale for NRE is however at 1:25 000. NRE has embarked upon a major 1:25,000 digital topographic data acquisition program that will support the current requirement for the provision of an operational scale Land Management dataset.<P>Products such as the Tomlinson Capital Works projects and Forest Management Planning require some parts of the state to be covered by a LANDMMT25 dataset. Although there is a future requirement to redesign this layer, the existing project timetables would not allow this design to occur now. The advice from these data users is that the current layer design does accommodate the requirement of these projects and any delay or increase in the cost of data acquisition would be unacceptable at this stage.<P>LANDMMT25 Layer Description1 Relationship to other Datasets: LANDMMT25 provides more detailed information than the LANDMMT100 layer. The LIMS cadastral boundaries stored at 1:25 000 (stored on a parish basis) have been incorporated into this layer. Where appropriate Land Management data has not been identified in the LIMS dataset, features may be derived from other layers such as HYDRO25, ROAD25 and UTIL25. LANDSAT and Spot imagery may also assist in determining boundary definition. Current Design Issues: LANDMMT25 is designed around the same principles as LANDMMT100. The immediate requirement is for a 1:25 000 Land Management layer to support the STATE GOVERNMENT OF VICTORIA STRATEGIC FRAMEWORK FOR GIS DEVELOPMENT (Tomlinson Associates Ltd, September 1991) C7 Wood Utilisation Planning information products and the Forest Management Plans. The current LANDMMT100 layer design more than satisfies this requirement. The layer provides details on the legal status of land, government land use decisions and the way the land is currently being managed The layer facilitates analysis of current and proposed land status and use. Future Design Issues: Although the redesigning of the LANDMMT100 is a high priority under the NRS-NRE Service Agreement, the re-engineering of LANDMMT100 will be following, rather than leading this project. Within the overall strategy in redesigning the LANDMMT100 layer, automating the process will be mandatory, therefore LANDMMT25 will undergo the same redesign as LANDMMT100. Although the layer design appears to provide users with most of the relevant outputs, changes in technology and in the data being recorded will require a layer redesign that will not only optimise data access but also data storage efficiency. This layer redesign should not interfere with current major projects relying on the current design. Heritage Rivers and Natural Catchment Areas may need to be included in a future layer redesign, however a separate cover is proposed to accommodate these themes at present. Related Documents: None REPORT ON THE PILOT STUDY CREATION OF THE 1:25,000 LAND MANAGEMENT LAYER (LANDMMT25) Phill King 8/3/96 STATE GOVERNMENT OF VICTORIA STRATEGIC FRAMEWORK FOR GIS DEVELOPMENT (Tomlinson Associates Ltd, September 1991) Report 

Maintenance and update frequency

Not planned  

Spatial

Spatial representation type

Vector  

Description

General - Victoria 

N

S

E

W

Temporal

Begin date

1995-01-01 

End date

2000-07-01 

Resolution

Horizontal Accuracy

25m  

Quality

Conceptual Consistency

Where appropriate, features from base layers are checked to ensure that the length of hydrology, road and utility arcs coded to be land management boundaries will be within 1% of the aggregate length of the same arcs in LANDMMT25. All coverages go through a validation process that includes: item validation labelerrors edgematching of both arcs and labels tile boundary movement projection file validation world polygon not coded Item cross-checks See /cdb/programs/validation/nrs for the following validation programs: landmmt25.aml, landmmt100_mmtxland.aml &amp; landmmt100_consist.aml 

Missing Data

Tambo Forest Management Areas by July 1996 Tambo Forest Management Areas by July 1996 

Attribute Quality

All arcs copied from another layer are validated within that layer prior to being copied into LANDMMT25. The majority of these attributes are maintained. All arc features are AS2482 coded. Coding of labels for polygons is restricted to those codes that are contained within the relevant lookup tables for each attribute. 

Positional Accuracy

Precision: The information is prepped and digitized to a precision of 1mm at map scale (25m) where there is base information (ie. roads and streams) to tie the cadastral boundaries to. Features that are derived from other layers will maintain the parent coverages accuracy. NOTE: Topographic features are adopted where no cadastral boundaries exist in the LIMS data Determination: Deductive 

Lineage

Description

After consultation with NRS staff the following design criteria were adopted. 1. Water bodies will be retained in a future polygon coverage - HYDROP25 (refer to HYDROP100 for definition and layer documentation). An automated process in selecting hydrological polygons by the appropriate AS2482 code will be adopted. The majority of polygons will close automatically, although some manual rectifications will be required to complete the linework (eg. dam walls with overshoots, flood plains within double sided streams). Polygon attributes via AS2482 identifiers are passed from the majority code within the arc attribute code forming that polygon. The terrestrial polygon label and map sheet boundary are generated automatically. 2. An automated data transfer and notification between parcel data and LANDMMT100 has been created by Adam Lewis (fuzzyoverlay.aml). 3. Plots and checking tools have been created to assist manual rectification of mismatched polygon data. 4. After validation of the oversized working coverage, clipping by TILE25 will occur to nullify any edgematching, then update it into the corporate library. 

Statement

Dataset Source: The first step in establishing the legal status of land is to adopt the LIMS data. The LIMS data may not provide sufficient land status detail; for example, LIMS data may label a Park but not whether the Park is a National Park, State Park, Coastal Park etc. To provide the current Land Status detail required, a comparison is made with the LANDMMT100 layer; this will assist in determining the type of Park or Reserve etc..<P>For management recommendations, the LIMS data can be used as a guide. The 1:100 000 management data can be overlayed with the LIMS data and where obvious polygon matchups can be made these are recorded The original source maps for the relevant Land Conservation Council (LCC) study area Final Recommendations from the LCC are the main source for determining the land use recommendations. The boundaries are interpreted from this information and the relevant feature is copied from the base layer. Where other Government decisions supersede the LCC recommendations, these are adopted. Dataset Originality: Primary & Derived 

About the Metadata Record

Metadata identifier

urn:uuid / 00e1853b-8647-5b30-96e2-3929437fc563