Virtual optical surface reflectance

Coming later A virtual collection with no data of its own. A search or render over optical-sr covers Sentinel-2 L2A, the three Landsat Level-2 collections and HLS at once. It resolves band names per scene, removes duplicate observations of one overpass and reports the harmonization each scene received.

Schema v1 defines this collection, but lean v1 does not serve it yet. Requests for it answer 404 unknown-collection. GET /v1/collections will list it once it is live.

Facts from schema v1

Collection id	optical-sr
Aliases	none
Members	sentinel-2-l2a, landsat-ot-l2, landsat-etm-l2, landsat-tm-l2, hls
Tile zoom	8 to 14
Build plan	Phase P1 with a combined launch (variant C), P3 with a Sentinel-first launch (variant S)

Notes

• Only the six cross-sensor common names resolve: blue, green, red, nir08, swir16 and swir22. A native name such as B08 or SR_B5, or nir, fails with unknown-band.
• bandpass_adjusted will be its default harmonization level.
• Its queryables are the ones all members share.
• Phases refer to the build plan; see the Data overview.