This dataset is the atmospherically corrected surface reflectance from the Landsat 8 OLI/TIRS sensors. These images contain 5 visible and near-infrared (VNIR) bands and 2 short-wave infrared (SWIR) bands processed to orthorectified surface reflectance, and two thermal infrared (TIR) bands processed to orthorectified brightness temperature
These data have been atmospherically corrected using LaSRC and includes a cloud, shadow, water and snow mask produced using CFMASK, as well as a per-pixel saturation mask.
Strips of collected data are packaged into overlapping "scenes" covering approximately 170km x 183km using a standardized reference grid.
See also the USGS page on SR QA bands.
SR can only be produced for Landsat assets processed to the L1TP level
Data provider notes:
This product is generated by Google using a Docker image supplied by USGS.
Band 1 (ultra blue) surface reflectance
Band 2 (blue) surface reflectance
Band 3 (green) surface reflectance
Band 4 (red) surface reflectance
Band 5 (near infrared) surface reflectance
Band 6 (shortwave infrared 1) surface reflectance
Band 7 (shortwave infrared 2) surface reflectance
Band 10 brightness temperature. This band, while originally collected with a resolution of 100m / pixel, has been resampled using cubic convolution to 30m.
Band 11 brightness temperature. This band, while originally collected with a resolution of 100m / pixel, has been resampled using cubic convolution to 30m.
Bitmask for sr_aerosol
Pixel quality attributes generated from the CFMASK algorithm.
Bitmask for pixel_qa
Radiometric saturation QA
Bitmask for radsat_qa
Percentage cloud cover, -1 = not calculated. (Obtained from raw Landsat metadata)
Percentage cloud cover over land, -1 = not calculated. (Obtained from raw Landsat metadata)
Earth-Sun distance (AU)
Internal ESPA image version used to compute SR
Combined RMSE (Root Mean Square Error) of the geometric residuals (meters) in both across-track and along-track directions. (Obtained from raw Landsat metadata)
RMSE (Root Mean Square Error) of the geometric residuals (meters) measured on the GCPs (Ground Control Points) used in geometric precision correction in the across-track direction. (Obtained from raw Landsat metadata)
RMSE (Root Mean Square Error) of the geometric residuals (meters) measured on the GCPs (Ground Control Points) used in geometric precision correction in the along-track direction. (Obtained from raw Landsat metadata)
Image quality, 0 = worst, 9 = best, -1 = quality not calculated. (Obtained from raw Landsat metadata)
Landsat Product Identifier (Collection 1)
Date of production for raw Level 1 data as ms since epoch
Version of the software used to produce the 'pixel_qa' band
Name of satellite
Time of the observations as in ISO 8601 string. (Obtained from raw Landsat metadata)
Solar azimuth angle
LaSRC version used to process surface reflectance
WRS path number of scene
WRS row number of scene