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Median of Percent Slope over 300 m derived from 1" SRTM DEM-S

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About this Collection

Median of Percent Slope over 300 m derived from 1" SRTM DEM-S


Slope measures the inclination of the land surface from the horizontal. Percent slope represents this inclination as the ratio of change in height to distance. The focal median of percent slope can be used as a surrogate for modal slope in landform pattern analysis. The 300 m focal median percent slope product was derived from the Smoothed Digital... more


Environmental Management Land Capability and Soil Degradation Landscape Ecology Natural Resource Management Soil Sciences not elsewhere classified


https://doi.org/10.4225/08/56DE9747E897E


11 Feb 2000


22 Feb 2000


CSIRO Enquiries
CSIROEnquiries@csiro.au
1300 363 400

Median of Percent Slope LAND Topography Models ECOLOGY Landscape TERN_Soils Land Surface Australia


Source data 1. 1 arc-second 300 m focal median of percent slope product 2. 1 arc-second percent slope product 3. 1 arc-second SRTM-derived Smoothed Digital Elevation Model (DEM-S; ANZCW0703014016). 4. 3 arc-second resolution SRTM water body and ocean mask datasets Focal median slope calculation Median slope using a 300 m window was calculated for each grid point from percent slope using a 300 m kernel. The different spacing in the E-W and N-S directions due to the geographic projection of the data was accounted for by using the actual spacing in metres of the grid points (calculated from the latitude), and recalculating the grid points included within the kernel extent for each row in the grid. The focal median slope calculation was performed on 1° x 1° tiles, with overlaps to ensure correct values at tile edges. The 3 arc-second resolution version was generated from the 1 arc-second 300 m focal median of percent slope product. This was done by aggregating the 1” data over a 3 x 3 grid cell window and taking the mean of the nine values that contributed to each 3” output grid cell. The 3” 300 m focal median of percent slope data were then masked using the SRTM 3” ocean and water body datasets.


Access to this data has been made possible by the Terrestrial Ecosystem Research Network (TERN), supported by the Australian Government through the National Collaborative Research Infrastructure Strategy and the Super Science Initiative.


Creative Commons Attribution 4.0 International Licence


CSIRO (Australia)


Gallant, John; Austin, Jenet (2012): Median of Percent Slope over 300 m derived from 1" SRTM DEM-S. v2. CSIRO. Data Collection. https://doi.org/10.4225/08/56DE9747E897E


All Rights (including copyright) CSIRO 2012.


The metadata and files (if any) are available to the public.

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Location Details

10°0′0″ S


44°0′0″ S


154°0′0″ E


113°0′0″ E


WGS84


More about this Collection

John Gallant


Terrain Analysis Research Team Leader


0 m


0 m



Raster




eng


UTF8


Elevation


About this Project

1181.2 TERN Facility No9 InfoGrid GRUNDY


The Soil and Landscape Grid of Australia is a comprehensive fine spatial resolution grid of functional soil attributes and key landscape features across Australia. The landscape attributes are derived from the data collected by the Shuttle Radar Topography Mission, whilst the soil attribute surfaces are modelled from existing soils information. The... more


John Gallant


National Elevation and Terrain Datasets


SRTM-derived elevation and terrain covariate datasets at 1 second or 3 second resolution


Measurement


John Gallant


Jenet Austin


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