Data

Slope Relief Classification derived from 1" SRTM DEM-S

Terrestrial Ecosystem Research Network
Austin, Jenet ; Gallant, John
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=10.4225/08/57512079C1A93&rft.title=Slope Relief Classification derived from 1" SRTM DEM-S&rft.identifier=10.4225/08/57512079C1A93&rft.publisher=Commonwealth Scientific and Industrial Research Organisation&rft.description=Slope relief landform pattern classification based on Speight (2009). The slope relief product was derived from the 300 m focal median percent slope product, and the Smoothed Digital Elevation Model (DEM-S; ANZCW0703014016), which was derived from the 1 arc-second resolution SRTM data acquired by NASA in February 2000. The slope relief classification dataset is available in 1 arc-second and 3 arc-second resolutions. The 3 arc-second resolution product was generated from the 1 arc-second slope relief product and masked by the 3” water and ocean mask datasets.Source data 1. 1 arc-second SRTM-derived Smoothed Digital Elevation Model (DEM-S; ANZCW0703014016). 2. 1 arc-second 300 m focal median percent slope product 3. 1 arc-second slope relief product 4. 3 arc-second resolution SRTM water body and ocean mask datasets Slope relief calculation The slope relief layer is an implementation of the classification of erosional landform patterns characterised by relief and modal slope as defined in Table 5 of Speight, J.G. (2009) Landform. In 'Australian soil and land survey field handbook (3rd edn)', National Committee on Soil and Terrain. CSIRO Publishing, Melbourne (the Yellow Book; the table is the same in the second edition) Modal slope has been replaced by median slope, since this is considered more amenable to automated processing, and the second highest relief class (90 - 300 m) has been split into two classes, 90 - 150 m and 150 - 300 m; partly due to desire to connect with international work (eg MORAP in USA) where the 150 m relief threshold is used, and partly due to the perceived rarity of relief over 150 m in Australia. The method was developed in May-June 2011 by John Gallant, CSIRO Land and Water and John Wilford, Geoscience Australia The slope relief 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 slope relief product. This was done by aggregating the 1” data over a 3 x 3 grid cell window and taking the majority class of the nine values that contributed to each 3” output grid cell. If there was a tie the result was no data, and in these cases a value was determined using Euclidean allocation. The 3” slope relief data were then masked using the SRTM 3” ocean and water body datasets. Speight, J.G. (2009) Landform. In 'Australian soil and land survey field handbook (3rd edn)', National Committee on Soil and Terrain. CSIRO Publishing, Melbourne&rft.creator=Austin, Jenet &rft.creator=Gallant, John &rft.date=2016&rft.edition=v3&rft.relation=http://hdl.handle.net/102.100.100/9238&rft.coverage=northlimit=-10.0; southlimit=-44.0; westlimit=113.0; eastLimit=154.0; projection=EPSG:4326&rft_rights=Creative Commons Attribution 4.0 International&rft_rights=No limitations to public access&rft_rights=Data is accessible online and may be reused in accordance with licence conditions&rft_subject=Slope Relief&rft_subject=LAND Topography Models&rft_subject=ECOLOGY Landscape&rft_subject=TERN_Soils&rft_subject=Land Surface&rft_subject=Australia&rft_subject=Land capability and soil productivity&rft_subject=Pedology and pedometrics&rft_subject=Soil Sciences not elsewhere classified&rft_subject=ENVIRONMENTAL SCIENCES&rft_subject=SOIL SCIENCES&rft_subject=Environmental Management&rft_subject=ENVIRONMENTAL SCIENCE AND MANAGEMENT&rft_subject=Landscape Ecology&rft_subject=ECOLOGICAL APPLICATIONS&rft_subject=Natural Resource Management&rft_subject=TERN Landscapes&rft_subject=Soil and Landscape Grid&rft.type=dataset&rft.language=English Access the data
Cite Saved to MyRDA Save to MyRDA

Licence & Rights:

Other view details
Unknown

Creative Commons Attribution 4.0 International

No limitations to public access

Data is accessible online and may be reused in accordance with licence conditions

Access:

Open view details

unclassified

Contact Information

Street Address:
Terrestrial Ecosystem Research Network
80 Meiers Road, Indooroopilly, Queensland, 4068, Australia
Queensland 4068
Australia
Ph: +61 7 3365 9097

[email protected]

Brief description

Slope relief landform pattern classification based on Speight (2009). The slope relief product was derived from the 300 m focal median percent slope product, and the Smoothed Digital Elevation Model (DEM-S; ANZCW0703014016), which was derived from the 1 arc-second resolution SRTM data acquired by NASA in February 2000. The slope relief classification dataset is available in 1 arc-second and 3 arc-second resolutions. The 3 arc-second resolution product was generated from the 1 arc-second slope relief product and masked by the 3” water and ocean mask datasets.

Lineage

Source data 1. 1 arc-second SRTM-derived Smoothed Digital Elevation Model (DEM-S; ANZCW0703014016). 2. 1 arc-second 300 m focal median percent slope product 3. 1 arc-second slope relief product 4. 3 arc-second resolution SRTM water body and ocean mask datasets Slope relief calculation The slope relief layer is an implementation of the classification of erosional landform patterns characterised by relief and modal slope as defined in Table 5 of Speight, J.G. (2009) Landform. In 'Australian soil and land survey field handbook (3rd edn)', National Committee on Soil and Terrain. CSIRO Publishing, Melbourne (the Yellow Book; the table is the same in the second edition) Modal slope has been replaced by median slope, since this is considered more amenable to automated processing, and the second highest relief class (90 - 300 m) has been split into two classes, 90 - 150 m and 150 - 300 m; partly due to desire to connect with international work (eg MORAP in USA) where the 150 m relief threshold is used, and partly due to the perceived rarity of relief over 150 m in Australia. The method was developed in May-June 2011 by John Gallant, CSIRO Land and Water and John Wilford, Geoscience Australia The slope relief 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 slope relief product. This was done by aggregating the 1” data over a 3 x 3 grid cell window and taking the majority class of the nine values that contributed to each 3” output grid cell. If there was a tie the result was no data, and in these cases a value was determined using Euclidean allocation. The 3” slope relief data were then masked using the SRTM 3” ocean and water body datasets. Speight, J.G. (2009) Landform. In 'Australian soil and land survey field handbook (3rd edn)', National Committee on Soil and Terrain. CSIRO Publishing, Melbourne

Notes

Credit
All Rights (including copyright) CSIRO 2012.

Created: 2016-08-11

Issued: 2016-08-11

Modified: 2016-08-11

Data time period: 2000-02-11 to 2000-02-22

This dataset is part of a larger collection

Click to explore relationships graph
Help

Related Data

Related Organisations

Related People

154,-10 154,-44 113,-44 113,-10 154,-10

133.5,-27

Subjects
Australia | Ecological Applications | ECOLOGY Landscape | Environmental Science and Management | Environmental Sciences | Environmental Management | LAND Topography Models | Land Surface | Land capability and soil productivity | Landscape Ecology | Natural Resource Management | Pedology and pedometrics | Soil Sciences | Slope Relief | Soil Sciences Not Elsewhere Classified | Soil and Landscape Grid | TERN Landscapes | TERN_Soils |

User Contributed Tags    

Login to tag this record with meaningful keywords to make it easier to discover

Identifiers
  • global : aa0b7dd7-a611-5957-a546-0074e3813958
ACN 633 798 857