Contacts

Identifiers and Keywords

ANZLIC Id

ANZVI0803001074 

Jurisdiction

Victoria 

Topic category

• Inland waters

Resource Constraints

Use limitation

For Departmental use. not current see DW_POINTS 

Classification

Unclassified  

Other Dataset Details

Date ( Revision )

2014-04-28

Status

Obsolete  

Purpose

not current see DW_POINTS 

Credit

Phil Miles, Margaret Allan, Geoff Elder & Steve Williams 

Format

DIGITAL Arc/Info Revision 7 Librarian layer ArcSDE - mapdb - GWBORES100 1 

Supplemental Information

Current Design Issues: Each bore needs to be uniquely identified (via attribute bore-id) to enable linkage to the groundwater and other databases. Additional ID attributes are required to support earlier numbering schemes still extant within some of the associated databases. A subset of textual information has been extracted from the parent databases (ie monfreq, zone, easting, northing) to enhance the layers useability. Future Design Issues: Layer enhancements to enable linkage to time series water level, lithological and water quality data will be a future requirement. These linkages may be to other existing database systems. Related Documents: None 

Maintenance and update frequency

Not planned  

Spatial

Spatial representation type

Vector  

Description

General - Victoria 

N

S

E

W

Temporal

Begin date

unknown  

End date

unknown  

Resolution

Horizontal Accuracy

100m  

Quality

Conceptual Consistency

Because the layer is an aggregation of bores from several groups this influences it's logical consistency. Bores derived from CLPR are used for research and groundwater monitoring purposes (and may be located near roads to facilitate measurement) while those from SKM are utilitarian, have differing deployment patterns and support a range of activities (ie. private bores sunk for irrigation, offshore drilling³s for oil exploration etc). 

Missing Data

Bores are located across the State. 

Attribute Quality

Only a subset of attributes from the parent databases have been included in the layer. The accuracy of these attribute varies across the State. 

Positional Accuracy

Precision: The current positional accuracy of the bore locations is variable. It is estimated that approximately 10% of the bores are in the wrong locations to a significant degree. A more comprehensive spatial error analysis is required. Determination: - Not Documented 

Lineage

Description

The data was originally supplied as a series of ASCII files from SKM, imported into an Microsoft Access database and then converted to ARC/INFO points coverages. The CLPR Groundwater Database is now held in SQL and updated regularly for monitored bores. 

Statement

Dataset Source: A copy of the Statewide Groundwater Database was obtained May 1994 from the database manager Sinclair, Knight, Merz. CLPR bore data is sourced from the centres groundwater database and is regularly updated for monitored research (salinity) bores. Ad-hoc updates are given by SKM for incorporation into the database. Dataset Originality: Derived 

About the Metadata Record

Metadata identifier

92d16d70-91ad-562d-8f28-3ffe87b9bd77

Resource Type

Dataset  

Date info ( Revision )

2014-04-28

Standard Name

ISO 19115-3:2018 

Profile Name

DELWP Profile 

Profile Version

Version 1 

Profile Date

2019-05-24  

Metadata Constraints

Classification

Limited Distribution