Full description
Geoscience Australia is responsible for the records and custody of Commonwealth aerial photography, acquired since 1928 up to the most recent analogue film capture in mid-1990s. Subsequent comparable information is available in the form of satellite imagery or direct digital aerial image capture. The majority of the landmass of Australia is covered by black and white photography at 1:80,000 scale. The near complete coverage was undertaken three times, in 1950s, 1960s and 1980s. Metadata about aerial photo surveys is recorded as flight diagrams on 1:250,000, 1:100,000 & 1:50,000 maps showing the approximate aircraft flight paths, selective depiction of photo centres, and other survey parameters.Value: Aerial imagery can be used to study change over time for land use, vegetation, environmental quality, etc.
Scope: Images in the collection have been acquired since 1928 up to the most recent analogue film capture in mid-1990s. Subsequent comparable information is available in the form of satellite imagery or direct digital aerial image capture. The majority of the landmass of Australia is covered by black and white photography at 1:80,000 scale. The near complete coverage was undertaken three times, in 1950s, 1960s and 1980s.
Lineage
Maintenance and Update Frequency: annually
Statement: Source: Commonwealth
Form: Only one third of the collection has been digitised to-date from film i.e. most of the collection is still only available on film. All digitised material is stored as raw images at full resolution in lossless format, and at a reduced resolutions in lossy format. Very few images are rectified and mosaicked. The majority of flight diagrams have been scanned to high resolution images and georeferenced. All flight diagrams have also been converted to a vector database to enable support for spatial searches. Work is ongoing.
This Collection record was created to enhance the discoverability and management of the individual products contained in the collection. See the individual eCat records for product specific lineage.
Form: Only one third of the collection has been digitised to-date from film i.e. most of the collection is still only available on film. All digitised material is stored as raw images at full resolution in lossless format, and at a reduced resolutions in lossy format. Very few images are rectified and mosaicked. The majority of flight diagrams have been scanned to high resolution images and georeferenced. All flight diagrams have also been converted to a vector database to enable support for spatial searches. Work is ongoing.
This Collection record was created to enhance the discoverability and management of the individual products contained in the collection. See the individual eCat records for product specific lineage.
Notes
PurposeAerial imagery can be used to study change over time for land use, vegetation, environmental quality, etc.
Issued: 05 11 2021
Data time period: 1928-07-18 to 1997-07-10
text: westlimit=112.00; southlimit=-44.00; eastlimit=154.00; northlimit=-9.00
Subjects
DC2020 |
EARTH SCIENCES |
HVC - High Value Collection |
HVC_144649 |
Published_External |
aerial photography |
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Other Information
View catalogue records associated with this collection
url :
https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/search?keyword=HVC_144649
Identifiers
- URL : pid.geoscience.gov.au/dataset/ga/144649
- global : 8e6cb9f4-3d54-436c-aebb-ff4fae98d921
