Corner Inlet Depth Contour Polygons at 1:25,000

dataset: BATHYMETRY_CORNER_INLET_POLY
This layer contains polygon features which represent subtidal relief. Isobaths are linear features which are lines of equal depth that form the boundaries of the polygons.
 
Citation proposal Citation proposal
(2014)

Corner Inlet Depth Contour Polygons at 1:25,000

Victorian Fisheries Authority
 

Description

Title
Corner Inlet Depth Contour Polygons at 1:25,000 
Alternate title
BATHYMETRY_CORNER_INLET_POLY 
Resource Type
Dataset  
Purpose
BATHYMETRY_CORNER_INLET_POLY is a 1:25 000 layer used for depth analysis. This layer will serve as a Digital Terrain Model (DTM) until more depth data can be obtained from which DTMs can be generated using automated techniques. Common uses for depth zone information include comparative analysis with fisheries catch data and representing the movement of commercial species in three dimensions. The depth information within this layer should not be used for navigation purposes. 
Credit
Hans Van Elmpt, Ralph Roob 
Supplemental Information
History: This layer replaced DEPTH25_POLYGON in March 2010 Relationship to other Datasets: The DEPTH25 layer draws on information stored within the COAST25 layer. The landward boundary is the 1:25,000 coastal trace. The coastal trace is subject to change especially in areas subject to erosion or mass movement of coastal sediments. Current Design Issues: All bathymetric information is collected as point features or spot depths. Isobaths are interpreted either by visual manual methods or by automated techniques. As more data becomes available the positional accuracy of isobaths should be revised. Each acquisition of depth information needs to be documented and assessed before it is incorporated in the layer. Future Design Issues: This layer is a base line data set and future design considerations will be limited. Related Documents: None 
Status
Completed  
 
 

Temporal

Time period
1993-01-01 
 
 

Spatial

Spatial representation type
Vector  
Horizontal Accuracy
25m  
Code
4283 


 

 

Maintenance

Maintenance and update frequency
As needed  
 
 

Format

 
 

Contacts

  Point of contact

Cited responsible party  

No information provided.

Cited responsible party  

No information provided.

Cited responsible party  

No information provided.
 
 

Keywords

Topic category
  • Oceans
 
 

Resource Constraints

Use limitation
http://www.data.vic.gov.au/ The bathymetric information contained within this layer is not to be used for navigation purposes 
Classification
Unclassified  
 
 

Lineage

Statement
Dataset Source: Public Works Department Ports and Harbors Division Hydrographic Survey Office 1:25,000 map base Dataset Originality: Derived 
Description
Collection Method: Maps 
Description
The data was digitized from the 1:25,000 hydrographic map base. The isobaths were initially interpreted from spot depths. 
 
 

Metadata Constraints

Classification
Unclassified  
 
 

Quality

Attribute Quality
Comments
There has been no assessment of attribute accuracy. 
Positional Accuracy
Comments
For the source data (Hydrographic Survey Office maps), horizontal accuracy is 10m to 100m of well defined points, and vertical accuracy is 10cm to 100cm in elevation. For the digital data, any departure between the digital and source material (measured between centre lines) will not exceed 1mm at the map scale of 1:25,000. Determination: Positional accuracy is only an estimate and has not been subject to any test. The depth information within this layer should not be used for navigation purposes. 
Conceptual Consistency
Comments
This layer has not been validated. 
Missing Data
Comments
Completed for Corner Inlet, Nooramunga Completed for Corner Inlet, Nooramunga 
Excess Data
 
 

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