Victorian Wetlands listed in - A Directory of Important Wetlands in Australia

dataset: WETLANDDIR
This layer contains Victorian wetlands listed in the 3rd Edition of 'A Directory of Important Wetlands of Australia' (2001). Descriptions for each wetland are available in the directory which is available on the Environment Austalia website at: http://www.ea.gov.au/water/wetlands/database/index.html These wetlands are derived from the WETLAND_1994 CGDL layer, hydrological CGDL layer and other sources such as topographic maps. The 2017 update of the Victorian Wetland Inventory (Current) resulted in improved accuracy of the boundary of a number of wetlands, based on on-ground mapping. WETLAND_CURRENT provided the source data to improve the WETLANDDIR dataset.
 
Citation proposal Citation proposal

(2019)

Victorian Wetlands listed in - A Directory of Important Wetlands in Australia

Department of Environment, Land, Water & Planning

Description

Title
Victorian Wetlands listed in - A Directory of Important Wetlands in Australia 
Alternate title
WETLANDDIR 
Purpose
Wetlanddir provides a spatial representation of wetlands listed in 'A Directory of Important Wetlands in Australia'. Directory entries cover a diverse range of wetlands including lakes, dams, swamps, rivers, floodplains. alpine bogs and estuaries. A directory entry may include a discrete wetland or a complex of several wetlands. 
Supplemental Information
Relationship to other Datasets: Closely tied to WETLAND_1994 and the HYDRO100 layer. The relevant line form HYDRO100, HYDRO25, HYDROP100, HYDROP25, COAST25, VIC100, PLMMT100, EVC100, VEG25, RAMSAR100, WETLAND_1788 and TOPO25 are added to the linework from the WETLAND_1994 layer. Current Design Issues: Although this dataset was derived mainly from the WETLAND_1994, any data based on linework had to be buffered to create polygons before they could be appended and dissolved so that all wetlands with the same NREid and EAid were grouped together. Additional data was also taken from the WETLAND_1788, HYDRO100, HYDRO25, HYDROP100, HYDROP25, COAST25, PLMMT100, VEG25, EVC100, VIC100 and TOPO25 layer for wetlands which were smaller than 1 hectare and for the rivers and streams data. This layer has been specifically designed to be used with 'A Directory of Important Wetlands in Australia', however specific information on some of the wetlands can be obtained from the WETLAND_1994 layer and associated tables (eg Victorian wetland categories, names, grid references). A related layer is the RAMSAR100 layer. Related Documents: 'A Directory of Important Wetlands of Australia' 3rd edition (2001). - null Environment Australia (2001) 'A Directory of Important Wetlands in Australia' 3rd Edition, Environment Australia, Canberra. http://www.ea.gov.au/water/wetlands/database/index.html 
Status
Completed 
 
 

Spatial

Horizontal Accuracy
25m 
Code
4283 
 
 

Maintenance

Maintenance and update frequency
Irregular 
 
 

Contacts

  Point of contact

Cited responsible party

No information provided.

Cited responsible party

No information provided.

Cited responsible party

No information provided.

Cited responsible party

No information provided.

Cited responsible party

No information provided.
 
 

Keywords

Topic category
  • Inland waters
  • Biota
 
 

Resource Constraints

Use limitation
. 
Classification
Unclassified 
Creative Commons Attribution 4.0 (CC-BY)
 
 

Lineage

Statement
Dataset Source: 1:100,000 linework form WETLAND_1994 in the CGDL 1:100,000 linework form WETLAND_1788 in the CGDL 1:100,00 hydro arcs from HYDRO100 in the CGDL 1:25,000 hydro arcs from HYDRO25 in the CGDL 1:100,00 hydro arcs from HYDROP100 in the CGDL 1:25,000 hydro arcs from HYDROP25 in the CGDL 1:25,000 linework from TOPO25 in the CGDL 1:25,000 linework from COAST25 in the CGDL 1:100,000 linework from PLMMT100 in the CGDL 1:25,000 linework from VEG25 in the CGDL 1:100,000 linework from EVC100 in the CGDL 1:100,000 linework from VIC100 in the CGDL 1:100,000 linework from RAMSAR100 in the CGDL Dataset Originality: Derived 
Description
Collection Method: Derived data used existing data layers in CGDL 
Description
Relevant HYDRO100, HYDRO25, HYDRO100, HYDRO25, VIC100 lines were buffered at 25m, 50m, 100m or 200m depending on the polygons required. TOPO25 lines were used to edit a PLMMT100 polygon. The PAT and AAT for all the datasets were edited and then the polygons were appended then dissolved. 
 
 

Metadata Constraints Metadata Constraints

Classification
Unclassified 
 
 

Quality

Attribute Quality
Comments
Complete 
 
Positional Accuracy
Comments
Linework in the WETLANDS_1994, WETLANDS_1788, HYDRO100, HYDRO25, HYDROP100, HYDROP25, PLMMT100, COAST25, VEG25, EVC100, VIC100, RAMSAR100 and TOPO25 were selected for this layer. The WETLAND_1994 layer precision is 10m to 100m. Ad-hoc comparisons with 1:25,000 layer data showed good correlation in shape and size, but with errors of the order indicated above in terms of position and/or rotation. 
 
Conceptual Consistency
Comments
Good 
 
Missing Data
Comments
All wetlands and streams which are listed in the directory of important wetlands 
 
Excess Data
 
 

Overviews

Graphic Overview of Data Footprint


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