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geoscientificInformation

549 record(s)

 

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  • 100m aspect grid derived from a resample of VICMAP_ELEVATION_DTM_20M. ArcInfo Workstation used to resample from 20m to 100m, then generate aspect from resultant DEM via GRID ASPECT(grid) command.

  • 20m slope grid derived from VICMAP_ELEVATION_DTM_20M

  • The land systems of Victoria spatial data layer (LSYS250) was re-attributed by DPI Bendigo based on McKenzie's Soil Atlas of Australia (CSIRO, 2003). Soil was classified on the Northcote scheme. This layer was converted to a grid format based on the VICMAP_ELEVATION_DTM_20M layer.

  • 20m aspect grid derived from VICMAP_ELEVATION_DTM_20M. ArcInfo Workstation used to generate aspect from DEM via GRID ASPECT(grid) command.

  • The land systems of Victoria spatial data layer (LSYS250) was re-attributed by DPI Bendigo based on McKenzie's Soil Atlas of Australia (CSIRO, 2003). Soil was classified on the Northcote scheme. This layer was converted to a grid format based on the VICMAP_ELEVATION_DTM_20M layer.

  • 100m slope grid derived from elevation data created by resampling VICMAP_ELEVATION_DTM_20M to 100m.

  • The land systems of Victoria spatial data layer (LSYS250) was re-attributed by DPI Bendigo based on McKenzie's Soil Atlas of Australia (CSIRO, 2003). Soil was classified on the Northcote scheme. This layer was rasterised to a grid based on resampling VICMAP_ELEVATION_DTM_20M to 100m.

  • The land systems of Victoria spatial data layer (LSYS250) was re-attributed by DPI Bendigo based on McKenzie's Soil Atlas of Australia (CSIRO, 2003). Soil was classified on the Northcote scheme. This layer was converted to a grid format based on the VICMAP_ELEVATION_DTM_20M layer.

  • A set of Digital Soil Maps (mean, 5th and 95th percentile prediction values) of soil silt % across Victoria in geotiff format. Silt is considered to be the 2 - 20 um mass fraction of the < 2mm soil material. Grids of key soil properties have been produced for Victoria. These grids, in raster format, provide prediction and confidence interval values for key soil properties at a 90 m grid resolution for six set depths; 0 to 5 cm, 5 to 15 cm, 15 to 30 cm, 30 to 60 cm, 60 to 100 cm and 100 to 200 cm, across Victoria. The grids have been designed to meet the specifications created by GlobalSoilMap (www.globalsoilmap.net) to develop and deliver detailed soil information in a consistent form. The grids are a spatial interpolation of key soil properties to support modelling and decision making in resource management, agricultural production, land use policy and planning, and in further research such as ecosystem modelling. The methodology used to develop the Soil Grids of Victoria has been based on that refined by the Australian Soil and Landscape Grid. Data and knowledge embedded into existing soil related datasets, e.g. soil profile and land mapping collections, have been key inputs. Whilst the new maps show an immense amount of fine scale detail, and are our best spatially continuous and exhaustive estimates of soil attributes across all of Victoria, they are most appropriately used for assessments of regional to state-wide trends of soil properties and their relationship with their environment and pedogenesis. Care should be taken when using the grids for local assessments and it is recommended that the confidence intervals are included at this scale.

  • This dataset is the primary data output from the Wimmera land resource assessment project undertaken in 2004-06. It contains soil and land information at a scale of 1:100 000 for all freehold land in the Wimmera region of Victoria. The dataset was developed by the project "A Land Resource Assessment of the Wimmera Region" conducted by Robinson et al. (2006). This project was undertaken by DPI's PIRVic Division for the Wimmera Catchment Management Authority to provide consistent land resource information across the region. It utilised data from existing soil surveys at varying scales and intensity conducted over the previous 60 years, remote sensing information and additional field work to develop updated 1:100 000 scale soil/landform mapping across the region. The nominal scale of the dataset is appropriate for broadscale assessment of land capability and regional planning. At the map scale of this dataset soil-landform units are not homogeneous. For each defined soil-landform unit, soil types were identified and an assessment of their risk of degradation (compaction, erosion, sodicity and acidity) was made. Importantly it should be noted that soil attributes (for example texture, sodicity, pH) are expected to vary between acquired soil sites. As the variability of soil attributes within a map unit is difficult to predict, it is important to note that representative soils should be used as a guide only. The study report describing the project methodology and dataset attributes is available from the Victorian Resources Online website. DOI 10.4226/92/58e729e8aea3e