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I downloaded scenes from both Landsat 7 & 8 reflectance. However, QA bands are included in Landsat 8 but not 7. I selected "all data" when downloading. Anyone has a clue where the QA bands are for Landsat 7 (further more, Landsat 4-5?)

QA for reflectance, USGS This link says QA bands are available for all reflectance bands. Just couldn't find them.

  • Downloaded from where? I don't see an "all data" option on EarthExplorer or ESPA. – user2856 Nov 1 '16 at 0:33
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I just downloaded a Landsat 7 Surface Reflectance scene from USGS EarthExplorer. It contains QA bands.

enter image description here

If you are ordering from the USGS ESPA, CFMask should be included by default in the Surface Reflectance product, but can be ordered separately (tick the CFMask box).

enter image description here

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If you download Collection-1 Landsat Images, both Landsat 7 and Landsat 8 Higher Level Data Products will come with pixel QA band. Otherwise you need to download the CFMask which has the same information but calculated with a different algorithm.

For more information you can check https://landsat.usgs.gov/landsat-surface-reflectance-quality-assessment website.

Please be informed that its announced on the ESPA site that starting from June 2nd CFMask wont be processed for Landsat Collection 1 Higher-Level data products.

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