NSW Imagery Basemap: Satellite and Aerial Photo Coverage for New South Wales

A cached imagery map service covering the state of New South Wales, Australia. It integrates multiple satellite and aerial orthophoto datasets from sources like LandSat, Spatial Services ADS sensors, AAM, and Jacobs, with data currency noted as 15/05/2024. The service is provided by Spatial Services within the NSW Department of Customer Service.

Use Cases

• Integrate a geographical index of imagery coverage into web mapping applications based on the described web map service.
• Reference and determine approximate dates of available imagery over a specific area in NSW based on the service's point enquiry capability.
• Align and compare historical and contemporary land cover using the multiple integrated imagery datasets mentioned in the description.

Strengths

• Horizontal accuracy is explicitly defined as +/-2.5 x Ground Sample Distance (GSD) in meters at a 95% confidence level.
• Integrates multiple specific imagery sources listed in the description, including LandSat 2014, various ADS sensor imagery, and AAM/Jacobs orthophotos.
• Data currency is specified as 15/05/2024, indicating recent updates.

Limitations

• Metadata completeness is limited; column-level documentation and specific file formats are unknown.
• The spatial reference (WGS84 ≈ GDA94) may cause misalignments when viewed in GDA2020 environments, as noted in the description.
• The description does not specify the resolution, scale, or exact temporal range for each constituent imagery dataset.

Provenance

Source

Spatial Services | NSW Department of Customer Service

Collection Method

Aggregated from multiple satellite and aerial photography sources including LandSat, ADS sensors, AAM, and Jacobs.

Time Range

Constituent datasets range from at least 2002 to 2018, with a data currency date of 2024.

Freshness

Data currency is 15/05/2024; update frequency is listed as 'Other'.

Geography

Covers the full extent of New South Wales, Australia.