New band common names to support PlanetScope PSB.SD

stac-extensions / eo

Covers electro-optical data that represents a snapshot of the Earth. It could consist of cloud cover and multiple spectral bands, for example visible bands, infrared bands, red edge bands and panchromatic bands.

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New band common names to support PlanetScope PSB.SD #14

Closed metasim closed 2 years ago

metasim commented 2 years ago

PlanetScope PSB.SD has two green bands. STAC specification needs common names defined to for identifying these bands.

Source: https://assets.planet.com/docs/Planet_Combined_Imagery_Product_Specs_letter_screen.pdf §2.1, Page 14.

emmanuelmathot commented 2 years ago

The addition of new common bands is subject to some criteria

The criteria for adding new common names is that the approximate location and size appears in multiple instruments. This is clearly the case for all the standard colors, Near IR and the 2 main SWIR atmospheric windows. Narrow bands tend to be too specific and unique.

see https://github.com/radiantearth/stac-spec/pull/1054

cholmes commented 2 years ago

Unfortunately I think multiple green bands don't yet clear the bar that @emmanuelmathot pointed that we have. If there is evidence of more sensors that have it then it could be added.

metasim commented 9 months ago

@emmanuelmathot @cholmes Is it still the opinion of the STAC community that additional green bands do not meet the criteria for being added to the specification?