Landsat TM Satellite Imagery Archive with Seven Spectral Bands

Landsat TM data has been available since the launch of Landsat 4 on 17 July 1982 and Landsat 5 on 1 March 1984. The National Remote Sensing Centre (NRSC) acquired this data from ESA receiving stations to build an archive of good quality scenes, primarily of the UK but also containing scenes from various countries worldwide. The data is available in seven spectral bands with a 16-day repeat cycle.

Use Cases

• Land cover classification using the seven spectral bands, including visible, near-infrared, and middle-infrared.
• Thermal analysis and urban heat island studies using the 120m resolution thermal infrared band.
• Multi-temporal change detection leveraging the 16-day repeat cycle to monitor environmental changes.
• Creating false-color composite images for vegetation analysis by combining specific bands like near-infrared and red.

Strengths

• Data available in seven spectral bands, providing multi-spectral analysis capabilities.
• Long temporal coverage starting from 1982 for Landsat 4 and 1984 for Landsat 5.
• Spatial resolution of 30m for visible, near-infrared, and middle-infrared bands.
• Regular 16-day repeat cycle enables consistent temporal monitoring.

Limitations

• Thermal infrared band has a coarser resolution of 120m compared to other bands.
• Specific row count, total size, and geographic distribution details are unknown.
• Data availability and access may be subject to pricing, as products are listed with price lists available on request.

Provenance

Source

National Remote Sensing Centre (NRSC), acquired from ESA receiving stations.

Collection Method

Satellite imagery captured by Landsat 4 and Landsat 5 Thematic Mapper sensors.

Time Range

From July 1982 (Landsat 4) and March 1984 (Landsat 5) onward.

Geography

Primarily the United Kingdom, with scenes from various countries worldwide.