Landform component mapping of north west Victoria

dataset: NW_LANDFORM
A polygonal dataset of mapped landforms in the Victorian Mallee. The dataset was created from the disaggregation of land systems originally defined by Rowan and Downes (1963). The disaggregation primarily involved an analysis of a 10 metre grid Digital Elevation Model (DEM) provided by the Department of Sustainability and Environment. The analysis included the use of the UPNESS index from the Fuzzy Landscape Analysis GIS (FLAG) model, Multi-resolution Valley Bottom Flatness (MrVBF) index, DEM derivative surfaces (such as slope, curvature, aspect and relative elevation) in combination with expert opinion, field observations and other supplementary datasets (such as aerial imagery, radiometrics, vegetation and GMU). The dataset was created in a staged approach through 4 project phases. The project was sponsored by the Mallee Catchment Management Authority with funding from the Federal government's Caring for our Country initiative. The final project report, "Disaggregation of landform components within land systems of the Mallee", and the Rowan and Downes (1963) report , "A study of the land of north-western Victoria", should be referred to when analysing or utilising this dataset. The landform component mapping was supplemented and refined during a "Wind erosion susceptibility mapping" project conducted in 2011. Details of changes are included in the associated project report (refer to that metadata record).
 
Citation proposal Citation proposal
(2019)

Landform component mapping of north west Victoria

Department of Jobs, Precincts and Regions
 

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  Point of contact

 

Identifiers and Keywords

ANZLIC Id
ANZVI0803005564 
Victorian Spatial Data Library (VSDL) Schema
CATCHMENTS:NW_LANDFORM 
Jurisdiction
Victoria 
Topic category
  • Farming
  • Geoscientific information
 

Resource Constraints

Use limitation
. Users should be aware that landform component delineation is fuzzy in that in most cases clear boundaries between landforms do not exist. In most instances only the mid and upper slopes and crests of sandy rises such as dunes and hummocks have been mapped. Users should refer to the final project report and "A study of the land of north-western Victoria" Rowan and Downes (1963) report. The report provides the methodology used to derive the landform dataset and identifies associated limitations, the Rowan and Downes (1963) report details the morphology and variation in landforms across the land systems of the Mallee. 
Classification
Unclassified  
Creative Commons Attribution 4.0 (CC-BY)
 

Other Dataset Details

Date ( Revision )
2019-05-30
Date ( Publication )
2018-02-01T20:38:33
Status
Completed  
Supplemental Information
Related Documents: None 
Maintenance and update frequency
Not planned  
Maintenance date ( Publication )
2018-02-01T20:38:33
 

Spatial

Spatial representation type
Vector  
Reference system identifier
4283



 

Temporal

Begin date
2009-07-01 
End date
2011-06-30 
 

Quality

Conceptual Consistency
consistent 
Missing Data
Dryland agricultural areas of the Mallee CMA region 
Excess Data
Landorm classes identified by Rowan and Downes (1963). A few additional landform components have been included. A total of 19 landform component classes were mapped. 
Attribute Quality
85% 
Positional Accuracy
refer to VicMAP elevation 10 meter digital elevation model metadata 
 

Lineage

Description
refer to technical report 
Statement
Dataset Source: In 1963 Rowan and Downes published "Landsystems of north west Victoria" which broadly mapped and described land, land use, climate and vegetation patterns in the Mallee region of Victoria. From 2009 to 2011 landform components described within each land system were disaggregated using a 10 meter resolution digital elevation model. 19 landforms classes were mapped in total across dryland agricultural areas. These mapped landforms provided the basis for wind erosion susceptibility mapping (refer to separate metadata record). Dataset Originality: Derived 
 

Attributes

Column Name Obligation Unique Data Type Data Length Data Precision Data Scale Reference Table Owner Reference Table Name Reference Table Code Column Name Short Column Name Definition
LFM_CODE O N NUMBER 22 38 8 LFM_CODE
AREA_HA O N NUMBER 22 38 8 AREA_HA
LFM_NAME O N VARCHAR2 60 LFM_NAME
 

About the Metadata Record

Metadata identifier
14d7189a-a1ac-5a29-8e42-f4237b795ab0

Contact  

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Resource Type
Dataset  
Date info ( Revision )
2019-05-30
Standard Name
ISO 19115-3:2018 
Profile Name
DELWP Profile 
Profile Version
Version 1 
Profile Date
2019-05-24  
 

Metadata Constraints

Classification
Unclassified  
 
 

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