1 second SRTM Derived Hydrological Digital Elevation Model (DEM-H) version 1.0  


Authors / CoAuthors

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

Abstract

The 1 second SRTM derived DEM-H Version 1.0 is a 1 arc second (~30 m) gridded digital elevation model (DEM) that has been hydrologically conditioned and drainage enforced. The DEM-H captures flow paths based on SRTM elevations and mapped stream lines, and supports delineation of catchments and related hydrological attributes. The dataset was derived from the 1 second smoothed Digital Elevation Model (DEM-S; ANZCW0703014016) by enforcing hydrological connectivity with the ANUDEM software, using selected AusHydro V1.6 (February 2010) 1:250,000 scale watercourse lines (ANZCW0503900101) and lines derived from DEM-S to define the watercourses. The drainage enforcement has produced a consistent representation of hydrological connectivity with some elevation artefacts resulting from the drainage enforcement. A full description of the methods is in preparation (Dowling et al., in prep). This product is the last of the Version 1.0 series derived from the 1 second SRTM (DSM, DEM, DEM-S and DEM-H) and provides a DEM suitable for use in hydrological analysis such as catchment definition and flow routing.

Product Type

dataset

eCat Id

71498

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 )
  • hydrology
( Theme )
  • land cover
( Theme )
  • mapping
  • AU
Australian and New Zealand Standard Research Classification (ANZSRC)
  • Topology
  • Published_External

Publication Date

2011-01-01T00:00:00

Creation Date

Security Constraints

Australian Government Security ClassificationSystem    

Classification - unclassified

Legal Constraints

Creative Commons Attribution 4.0 International Licence    

Access - license

Use - license

Status

Purpose

Maintenance Information

unknown

Topic Category

elevation

Series Information

1.0.4

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

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

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

ELVIS Portal  

1 second SRTM Derived Products User Guide  

Download the DEM-H [26.8 GB]  

Source Information

Source data not available.