Abstract

GA is the custodian of a 20 year archive of Synthetic Aperture Radar (SAR) data covering the Australian continent that can be used to observe cm-scale ground motion and surface texture associated rock type, changes in vegetation or floods. SAR is an airborne or spaceborne side-looking radar system that actively transmits microwave radiation towards earth. The resulting imagery is very different from optical data and can be collected regardless of weather conditions and at any time of day. Images pairs can be used for interferometry to accurately determine surface elevation and to construct digital elevation models or to measure cm-scale changes in surface position. Alternatively, the amplitude and polarity of single images can be used to characterise surface textures for the purpose of identifying types and or changes in surface materials. The SAR sensors for this collection are ESA's two C-band European Remote Sensing (ERS) satellites, ERS-1 (30/07/1991-10/03/2000) and ERS-2 (13/07/1995-05/09/2011). GA plans to add data from several of the upcoming missions (at least five are planned during the next five years) providing continuing coverage of Australia. Ongoing processing of the SAR data will produce measurements of ground motion that will be incorporated into the data collection.
Google map showing geographic bounding box with values North bound -9.0 East bound 158.0 West bound 113.0 South bound -44.0

Product Type/Sub Type

dataset

Constraints

Creative Commons Attribution 4.0 International Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

2014-01-01T00:00:00

Product Type

dataset

Topic Category

geoscientificInformation

GA Catalogue Number

79346 Product http://www.ga.gov.au/metadata-gateway/metadata/record/79346/

Keywords

Satellite Imagery
Geophysics

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-9.0
East bound
158.0
West bound
113.0
South bound
-44.0

TEMPORAL EXTENT

1991-07-30 / 2011-09-05

Lineage

Data was observed by the ERS1 and ERS2 satellites, acquired by Geoscience Australia at its observatories at Alice Springs, and processed to Level 0 format by Geoscience Australia.

Digital Transfer Options

onLine

Distributor

Role
distributor
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address

Source Description

The SAR sensors for this collection are ESA's two C-band European Remote Sensing (ERS) satellites, ERS-1 (30/07/1991-10/03/2000) and ERS'2 (13/07/1995-05/09/2011). GA plans to add data from several of the upcoming missions (at least five are planned during the next five years) providing continuing coverage of Australia.

Metadata File Identifier

f692d6d5-ac9e-1ff3-e044-00144fdd4fa6

Metadata Standard Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address