1 second SRTM Level 2 Derived Smoothed Digital Elevation Model (DEM-S) version 1.0  


Authors / CoAuthors

Gallant, J. | Tickle, P.K. | Wilson, N. | Dowling, T. | Read, A.

Abstract

The 1 second Shuttle Radar Topographic Mission (SRTM) derived smoothed Digital Elevation Model (DEM-S) Version 1.0 is a 1 arc second (~30m) gridded smoothed version of the DEM (ANZCW0703013355). The DEM-S represents ground surface topography, excluding vegetation features, and has been smoothed to reduce noise and improve the representation of surface shape. The dataset was derived from the 1 second Digital Elevation Model Version 1.0 (DSM; ANZCW0703013336) by an adaptive smoothing process that applies more smoothing in flatter areas than hilly areas, and more smoothing in noisier areas than in less noisy areas. This DEM-S supports calculation of local terrain shape attributes such as slope, aspect and curvatures that could not be reliably derived from the unsmoothed DEM because of noise. A full description of the methods is in progress (Gallant et al., in prep) and in the User Guide (Geoscience Australia & CSIRO, 2010).

Product Type

dataset

eCat Id

70715

Contact for the resource

  Owner

Commonwealth of Australia (Geoscience Australia)  

  Custodian

Commonwealth of Australia (Geoscience Australia)  
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia

  Point of contact

 
Contact instructions
PSCD

Keywords

  • DEM topographic
( Theme )
  • DEM
( Theme )
  • digital elevation data
( Theme )
  • mapping
( Theme )
  • hydrology
( Theme )
  • land cover
  • AU
Australian and New Zealand Standard Research Classification (ANZSRC)
  • Topology
  • Published_External

Publication Date

2010-01-01T00:00:00

Creation Date

Security Constraints

Australian Government Security ClassificationSystem    

Classification - unclassified

Legal Constraints

Creative Commons Attribution 4.0 International Licence    

Access - restricted

Use - license

Status

Purpose

Maintenance Information

unknown

Topic Category

elevation

Series Information

1.0.3

Lineage

Unknown

Parent Information

Extents

[-44.00, -10.00, 113.00, 154.00]

Reference System

GDA94 (EPSG:4283)

Spatial Resolution

Service Information

Associations

Downloads and Links

Download the data [27 GB]  

Link to 1 second SRTM Digital Elevation Model - Smoothed web coverage service  

Link to 1 second SRTM Digital Elevation Model - Smoothed web map service  

Link to Aspect derived from 1 second Digital Elevation Model - Smoothed web coverage service  

Link to Aspect derived from 1 second Digital Elevation Model - Smoothed web map service  

Link to Percent slope derived from 1 second Digital Elevation Model - Smoothed web coverage service  

Link to Percent slope derived from 1 second Digital Elevation Model - Smoothed web map service  

User Guide (pdf)  

Source Information

Source data not available.