How to download Landsat image from USGS Earthexplorer

Start here: https://earthexplorer.usgs.gov/

Landsat 8 images have mostly 30m resolution.

If you are looking for earlier images, you will have to match it with the corresponding satellite. Thereafter, the bands and resolutions will have to be recalibrated too.

To check on the satellite and bands, start here:

https://landsat.gsfc.nasa.gov/a-landsat-timeline/

Landsat 8-9 Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS)

Bands Wavelength
(micrometers)
Resolution
(meters)
Band 1 – Coastal aerosol 0.43-0.45 30
Band 2 – Blue 0.45-0.51 30
Band 3 – Green 0.53-0.59 30
Band 4 – Red 0.64-0.67 30
Band 5 – Near Infrared (NIR) 0.85-0.88 30
Band 6 – SWIR 1 1.57-1.65 30
Band 7 – SWIR 2 2.11-2.29 30
Band 8 – Panchromatic 0.50-0.68 15
Band 9 – Cirrus 1.36-1.38 30
Band 10 – Thermal Infrared (TIRS) 1 10.6-11.19 100
Band 11 – Thermal Infrared (TIRS) 2 11.50-12.51 100

image source: –

https://www.nasa.gov/sites/default/files/ldcm . jpeg

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