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geoscientificInformation

534 record(s)

 

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draft

From 1 - 10 / 534

  • 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.

  • 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 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.

  • 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 converted to a grid format based on the VICMAP_ELEVATION_DTM_20M layer.

  • 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.

  • A set of Digital Soil Maps (mean, 5th and 95th percentile prediction values) of field capacity % across Victoria in geotiff format. 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.

  • The land systems of Victoria, as described and delineated by Rowan in 1989, provide a statewide coverage of land types that are applicable to a wide range of land resource management and planning programs. These land systems sit within a geomorphological framework developed by Jenkin and Rowan. This data set consolidates a broad range of land resource information drawn from an uneven base to provide a consistent, if limited, coverage of the lands of Victoria. The explicit links with the original sources of data have been retained. The data set was developed from a range of studies of varying methodologies and intensities over some forty years. The reliability of the information varies across regions accordingly. This edition (3) incorporates new survey material [Shires of West Wimmera, Lowan, West Towong and East Gippsland (east of Snowy River)] as well as changes in the nomenclature with the substitution of broad slope class with relative relief classes (eg. plains, hills, mountains). An addition factor (lithological age) was also added to the key. There is still a link with the Edition 2 version in the main Land Systems table. More information on land system mapping can be found on Victorian Resources Online http://vro.depi.vic.gov.au/dpi/vro/vrosite.nsf/pages/landform_systems DOI 10.4226/92/58e727e0dd1be