Victorian Land Cover Mapping 2017

dataset: LANDCOVER_2017
Land cover mapping data is an annual component of the Victorian Land Use Information System, the VLUIS. The land cover information has been created specifically for the VLUIS using time series analysis of the MOD13Q1 or MYD13Q1 products produced by NASA using data collected by the MODIS sensor and freely available on the Reverb | ECHO website. Ground data is collected annually across Victoria using a stratified random sampling approach for calibration of the annual seasonal curves and validation of the classification output. The ground data is split into three groups with 50% used to develop classification rules, 25% used to produce interim validation results that feed back into the rule development process with the remaining 25% used to independently validate the final classification. Error matrices for each land cover dataset from 2009 have been produced from this final validation. The TIMESAT GUI is used to create smoothed annual time series for the Normalised Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI) and the Red and Near Infrared (NIR) MOD13Q1 or MYD13Q1 bands using the Savitsky-Golay algorithm. A time series of 21 images was used and a suite of 11 seasonal parameters created that each numerically describe features of the annual seasonal curves for each band. In addition the standard deviation of the annual seasonal curve is calculated for each band and used in conjunction with the seasonal parameters. A three-tiered hierarchical classification was developed to assign a dominant land cover class to each pixel. Initially, rules developed using the data mining tool See5 and / or expert knowledge were applied to the seasonal parameters and the annual standard deviation in conjunction with a GIS data-set of water bodies greater than 12.5ha in area to classify each pixel as either Tree, Non-tree or Water based on two data sets from the corporate spatial data library, HY_WATER_AREA_POLY.shp and VM_LITE_HY_WATER_AREA.shp; and are combined to form the water bodies layer. In addition, the primary classes are cross checked using data from preceding and following years to reduce misclassification prior to the secondary classification. A secondary classification developed using rules based on expert knowledge and / or See5 is applied to split the primary class Tree into the secondary classes Native Woody Cover and Treed Production and the primary class Non-tree into the secondary classes Pasture/ Grassland and Crops. Finally, a tertiary classification further divides the secondary class Treed Production into the tertiary classes Hardwood Plantation, Softwood Plantation and evergreen or deciduous Woody Horticulture and the secondary class Crops into the tertiary classes Brassicas, Legumes, Cereals and Non-Woody Horticulture based on rules developed using the data mining tool See5 and modified where appropriate by expert knowledge. Additional information on land cover mapping, including map symbology, can be found on Victorian Resources Online. DOI 10.26279/5b98601d6b27e
 
Citation proposal Citation proposal
(2021)

Victorian Land Cover Mapping 2017

Department of Energy, Environment and Climate Action
 

Details

Contacts

Cited responsible party  

No information provided.

Cited responsible party  

No information provided.

Cited responsible party  

No information provided.

  Point of contact

 

Identifiers and Keywords

ANZLIC Id
ANZVI0803005946 
Jurisdiction
Victoria 
Topic category
  • Society
  • Farming
 

Resource Constraints

Use limitation
The custodian should be contacted to assess the utility of this dataset for your purpose. 
Classification
Unclassified  
Creative Commons Attribution 4.0 (CC-BY)
 

Other Dataset Details

Date ( Revision )
2021-07-14
Status
Completed  
Format
Geotiff 3 
Supplemental Information
Related Documents: None http://vro.depi.vic.gov.au/dpi/vro/vrosite.nsf/pages/luis http://vro.depi.vic.gov.au/dpi/vro/vrosite.nsf/pages/luis 
Maintenance and update frequency
Annually  
 

Spatial

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

N
S
E
W


 

Temporal

Begin date
2017-01-01 
End date
2017-12-31 
 

Quality

Conceptual Consistency
Not Known 
Missing Data
Victoria Completeness Verification: Overall Accuracy = (912/1262) 72.2662% Kappa Coefficient = 0.6571 
Attribute Quality
Land cover 2014: Overall accuracy for this land cover classification was 66.4%. The accuracy for individual classes may vary and users are asked to refer to the data error matrix for more detailed accuracy information. Land cover 2015: Overall accuracy for this land cover classification was 72.1%. The accuracy for individual classes may vary and users are asked to refer to the data error matrix for more detailed accuracy information. 
Positional Accuracy
Not Known 
 

Lineage

Description
Not Known 
Statement
Dataset Source: The dataset has been created by the Spatial Information Sciences Group of the Department of Economic Development, Jobs, Transport, and Resources, Agriculture Research Division. Tertiary Dominant Land Classes: 0 Unknown 1 Water 11 Native Woody Cover 121 Deciduous Woody Horticulture 122 Evergreen Woody Horticulture 123 Hardwood Plantation 124 Softwood Plantation 21 Pasture and grassland 221 Brassicas 222 Cereals 223 Legumes 224 Non-woody Horticulture 3 Bare and non-photosynthetic material Dataset Originality: Primary & Derived 
 

About the Metadata Record

Metadata identifier
1ac689c4-6c9b-5bdf-93fa-ed66055c7ae4

Contact  

No information provided.
Resource Type
Dataset  
Date info ( Revision )
2021-07-14
Standard Name
ISO 19115-3:2018 
Profile Name
DELWP Profile 
Profile Version
Version 1 
Profile Date
2019-05-24  
 

Metadata Constraints

Classification
Unclassified  
 
 

    Overviews

Graphic Overview of Data Footprint

  Provided by

  Share on social sites

         

  Views Views

Read here the full details and access to the data. Read here the full details and access to the data.

  Associated resources

Not available