3 second SRTM Derived Digital Elevation Model (DEM) Version 1.0  


Authors / CoAuthors

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

Abstract

The 3 second (~90m) Shuttle Radar Topographic Mission (SRTM) Digital Elevation Model (DEM) version 1.0 was derived from resampling the 1 arc second (~30m) gridded DEM (ANZCW0703013355). The DEM represents ground surface topography, and excludes vegetation features. The dataset was derived from the 1 second Digital Surface Model (DSM; ANZCW0703013336) by automatically removing vegetation offsets identified using several vegetation maps and directly from the DSM. The 1 second product provides substantial improvements in the quality and consistency of the data relative to the original SRTM data, but is not free from artefacts. Man-made structures such as urban areas and power line towers have not been treated. The removal of vegetation effects has produced satisfactory results over most of the continent and areas with defects are identified in the quality assessment layers distributed with the data and described in the User Guide (Geoscience Australia and CSIRO Land & Water, 2010). A full description of the methods is in progress (Read et al., in prep; Gallant et al., in prep). The 3 second DEM was produced for use by government and the public under Creative Commons attribution.

Product Type

dataset

eCat Id

69888

Contact for the resource

  Point of contact

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

  Point of contact

 

  Resource provider

 

Keywords

  • DEM topographic
( Theme )
  • DEM
( Theme )
  • GIS
( Theme )
  • digital elevation data
( Theme )
  • topography
( Theme )
  • remote sensing
  • AU
Australian and New Zealand Standard Research Classification (ANZSRC)
  • Topology
  • Published_External

Publication Date

2009-01-01T00:00:00

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

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 (ESRI grid) [602 MB]  

Source Information

Source data not available.