Aspect (20m grid) measured in degrees

dataset: ASPECT20
20m aspect grid derived from VICMAP_ELEVATION_DTM_20M. ArcInfo Workstation used to generate aspect from DEM via GRID ASPECT(grid) command.
 
Citation proposal Citation proposal
(2010)

Aspect (20m grid) measured in degrees

Department of Environment, Land, Water & Planning
 

Details

Contacts

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  Point of contact

 

Identifiers and Keywords

ANZLIC Id
ANZVI0803003459 
Jurisdiction
Victoria 
Topic category
  • Geoscientific information
 

Resource Constraints

Use limitation
Available under licence Fire Management Environmental Modelling 
Classification
Unclassified  

Legal constraints

Citation

Title
DELWP Data License 
Website
 

License Text

Use constraints
Restricted  
 

Other Dataset Details

Date ( Revision )
2010-04-01
Status
Completed  
Purpose
Aspect data used to identify landscape units receiving greater solar exposure. Relevant to Fire Management and environmental modelling. 
Credit
Sam Ebert, DSE Wodonga Craig Hamilton, DSE Wodonga Terry McLLean, DPI Rutherglen 
Format
DIGITAL Arc/Info Revision 7 Grid library 2 
Supplemental Information
Relationship to other Datasets: The layer is derived using ESOCLIM and DEM250. For a given area one can expect high correlations between RAIN<month> and DEM250 Current Design Issues: The layer is a raster dataset, ie. a GRID. To reduce disk storage it is stored as an integer value grid with precision maintained to two decimal places using: value = mm/annum * 100. Future Design Issues: As DEM250 is replaced by a higher resolution DEM it may be appropriate to re-calculate the rainfall estimates. For specific areas it will be appropriate to use additional rainfall data to update the ESOCLIM surfaces and generate higher resolution rainfall estimates. Layer design should be revised at that time. Related Documents: None ESOCLIM documentation (CLIM_GRD.DOC) ANUCLIM Users Guide 
Maintenance and update frequency
Irregular  
 

Spatial

Spatial representation type
Grid  
Description
General - Victoria 
Reference system identifier
4283

N
S
E
W


 

Temporal

Begin date
2009-07-01 
End date
2009-09-01 
 

Resolution

Horizontal Accuracy
100m  
 

Quality

Missing Data
Complete for the state. Complete for all Victorian Catchment Management Authority (CMA's) areas. 
Attribute Quality
Normally claimed to be within 5% of the actual value. This is based on a generalised cross-validation algorithm which carries out the original interpolation without each point in turn, and compares the interpolated value at that point with the observed value. 
Positional Accuracy
Precision: 10-100m Determination: Based on the input map scale for the data underpinning VICMAP_ELEVATION_DTM_20M. 
 

Lineage

Description
The dataset is generated from ArcInfo Workstation grid, based on the DEM25 dataset. Aspect generated as degrees (0-360). 
Statement
Dataset Source: The dataset is generated from ArcInfo Workstation grid, based on the VICMAP_ELEVATION_DTM_20M dataset. Aspect generated as degrees (0-360). Dataset Originality: Derived 
 

About the Metadata Record

Metadata identifier
aba7918e-e6d4-55f7-8ded-2fb34ee39a51

Contact  

No information provided.
Resource Type
Dataset  
Date info ( Revision )
2010-04-01
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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