eAtlas Data Catalogue
Torres Strait clear sky, clear water Landsat 5 satellite composite (NERP TE 13.1 eAtlas, AIMS, source: NASA)
This dataset is a composite of Landsat 5 satellite imagery to produce a cloud free, clear water seamless image of the Torres Strait region. This image includes some of Cape York and PNG, in particular the Fly river. This composite shows clear imagery for marine areas, in particular reefs, larger islands and sand bars.
This image has a resolution of approximately 30 m and a positional accuracy of better than 50 m.
There is a new similar dataset based on higher resolution Sentinel 2 imagery: Lawrey, E. (2022). Torres Strait Sentinel 2 Satellite Regional Maps and Imagery 2015 – 2021 (AIMS) [Data set]. eAtlas. https://doi.org/10.26274/3CGE-NV8 5
This composite is made from 8 Landsat scenes. Images in each scene were selected by trawling through the entire archive of Landsat 5 to find the clearest two to three clearest images. The preference for these images was that they needed to be as cloud free as possible, be at low tide and for the water to be as clear as possible. The final images used range from 1993 - 2009.
The selected images were converted to true colour, corrected for sun glint, high level thin clouds and haze. The two or three images for a scene were then blended together in Photoshop using feathered masks to remove clouded areas. The images were then colour and tonally corrected to match neighbouring scenes. The scenes were then blended by copying cropped feathered versions of the neighbouring scenes. The resulting images for each scene were then masked to create a clean "no data" boundary around the image so that mosaicking would not introduce any visual artefacts.
The scene images were then mosaicked together into a single image using gdalwarp. The final image was then reprojected using gdalwarp and finally trimmed and compressed using gdal_translate.
Simple
Identification info
- Date (Creation)
- 2013-10-25T15:14:00
- Date (Publication)
- 2015-01-01T00:00:00
- Purpose
- This dataset was created to provide a clear view of the marine areas in the Torres Strait as no existing online mapping products (including Google) did a good job of this at the time the dataset was developed.
- Status
- On going
- Point of contact
-
Role Organisation Name Telephone Delivery point City Administrative area Postal code Country Electronic mail address Point of contact Australian Institute of Marine Science (AIMS) Lawrey, Eric, Dr Voice facsimile PRIVATE MAIL BAG 3, TOWNSVILLE MAIL CENTRE Townsville Queensland 4810 Australia e-atlas@aims.gov.au
- Spatial representation type
- Grid
- Topic category
-
- Imagery base maps earth cover
Extent
Extent
))
Temporal extent
- Time position
- 1993-07-01T15:36:00
- Time position
- 2009-07-12T15:38:00
- Keywords (Theme)
-
- marine
Resource constraints
- Linkage
-
http://i.creativecommons.org/l/by/2.5/au/88x31.png
License Graphic
- Title
- Creative Commons Attribution 2.5 Australia License
- Cited responsible party
-
Role Organisation Name Telephone Delivery point City Administrative area Postal code Country Electronic mail address
- Website
-
http://creativecommons.org/licenses/by/2.5/au/
License Text
- Other constraints
- Cite this dataset as: Lawrey, E (2013). Torres Strait clear sky, clear water Landsat composite (NERP TE 13.1 eAtlas, AIMS, source: NASA), [datafile]. eAtlas, AIMS [producer]. CC BY 3.0 AU [license]. https://eatlas.org.au/data/uuid/71c8380e-4cdc-4544-98b6-8a5c328930ad In a map where space is very limited please provide the minimum attribution of: Torres Strait Clear sky Landsat (eAtlas, AIMS)
- Language
- English
- Character encoding
- UTF8
Distribution Information
- OnLine resource
- ts:TS_eAtlas_Clear-sky-Landsat
- OnLine resource
- Interactive map of this dataset
- OnLine resource
- eAtlas Web Mapping Service (WMS) (AIMS)
- OnLine resource
- eAtlas project page
- OnLine resource
- Python and Batch scripts (using GDAL) used to process and merge the images into the composite [Zip 4 kB]
- OnLine resource
- TS Clear Sky Landsat Composite image [GeoTiff 625 MB]
Resource lineage
- Statement
- All imagery was derived from Landsat 5 imagery.
- Hierarchy level
- Dataset
Reference System Information
- Reference system identifier
- EPSG/EPSG:4326
Metadata
- Metadata identifier
- urn:uuid/71c8380e-4cdc-4544-98b6-8a5c328930ad
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation Name Telephone Delivery point City Administrative area Postal code Country Electronic mail address Point of contact Australian Institute of Marine Science (AIMS) eAtlas Data Manager Voice facsimile PRIVATE MAIL BAG 3, TOWNSVILLE MAIL CENTRE Townsville Queensland 4810 Australia e-atlas@aims.gov.au
- Parent metadata
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://eatlas.org.au/data/uuid/71c8380e-4cdc-4544-98b6-8a5c328930ad
Point of truth URL of this metadata record
- Date info (Creation)
- 2016-04-02T06:50:50
- Date info (Revision)
- 2024-07-18T00:08:44.351Z
Metadata standard
- Title
- ISO 19115-3:2018
