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.

Resolution
30 meters

Revisit Interval
16 days

Bands
NameUnitsScaleWavelengthDescription
B10.00010.435-0.451 μm

Band 1 (ultra blue) surface reflectance

B20.00010.452-0.512 μm

Band 2 (blue) surface reflectance

B30.00010.533-0.590 μm

Band 3 (green) surface reflectance

B40.00010.636-0.673 μm

Band 4 (red) surface reflectance

B50.00010.851-0.879 μm

Band 5 (near infrared) surface reflectance

B60.00011.566-1.651 μm

Band 6 (shortwave infrared 1) surface reflectance

B70.00012.107-2.294 μm

Band 7 (shortwave infrared 2) surface reflectance

B10Kelvin0.110.60-11.19 μm

Band 10 brightness temperature. This band, while originally collected with a resolution of 100m / pixel, has been resampled using cubic convolution to 30m.

B11Kelvin0.111.50-12.51 μm

Band 11 brightness temperature. This band, while originally collected with a resolution of 100m / pixel, has been resampled using cubic convolution to 30m.

sr_aerosol

Aerosol attributes

Bitmask for sr_aerosol
  • Bit 0: Fill
    • Bit 1: Aerosol retrieval - valid
      • Bit 2: Aerosol retrieval - interpolated
        • Bit 3: Water pixel
          • Bit 4: Water aerosol retrieval failed - needs interpolated
            • Bit 5: Neighbor of failed aerosol retrieval
              • Bits 6-7: Aerosol content
                • 0: Climatology
                • 1: Low
                • 2: Medium
                • 3: High
              pixel_qa

              Pixel quality attributes generated from the CFMASK algorithm.

              Bitmask for pixel_qa
              • Bit 0: Fill
                • Bit 1: Clear
                  • Bit 2: Water
                    • Bit 3: Cloud Shadow
                      • Bit 4: Snow
                        • Bit 5: Cloud
                          • Bits 6-7: Cloud Confidence
                            • 0: None
                            • 1: Low
                            • 2: Medium
                            • 3: High
                          • Bits 8-9: Cirrus Confidence
                            • 0: None
                            • 1: Low
                            • 2: Medium
                            • 3: High
                          • Bit 10: Terrain Occlusion
                            radsat_qa

                            Radiometric saturation QA

                            Bitmask for radsat_qa
                            • Bit 0: Data Fill Flag
                              • 0: Valid data
                              • 1: Invalid data
                            • Bit 1: Band 1 data saturated
                              • Bit 2: Band 2 data saturated
                                • Bit 3: Band 3 data saturated
                                  • Bit 4: Band 4 data saturated
                                    • Bit 5: Band 5 data saturated
                                      • Bit 6: Band 6 data saturated
                                        • Bit 7: Band 7 data saturated
                                          • Bit 8: Unused
                                            • Bit 9: Band 9 data saturated
                                              • Bit 10: Band 10 data saturated
                                                • Bit 11: Band 11 data saturated

                                                  Image Properties
                                                  NameTypeDescription
                                                  CLOUD_COVERINT

                                                  Percentage cloud cover, -1 = not calculated. (Obtained from raw Landsat metadata)

                                                  CLOUD_COVER_LANDINT

                                                  Percentage cloud cover over land, -1 = not calculated. (Obtained from raw Landsat metadata)

                                                  EARTH_SUN_DISTANCEDOUBLE

                                                  Earth-Sun distance (AU)

                                                  ESPA_VERSIONSTRING

                                                  Internal ESPA image version used to compute SR

                                                  GEOMETRIC_RMSE_MODELDOUBLE

                                                  Combined RMSE (Root Mean Square Error) of the geometric residuals (meters) in both across-track and along-track directions. (Obtained from raw Landsat metadata)

                                                  GEOMETRIC_RMSE_MODEL_XDOUBLE

                                                  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)

                                                  GEOMETRIC_RMSE_MODEL_YDOUBLE

                                                  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_QUALITYINT

                                                  Image quality, 0 = worst, 9 = best, -1 = quality not calculated. (Obtained from raw Landsat metadata)

                                                  LANDSAT_IDSTRING

                                                  Landsat Product Identifier (Collection 1)

                                                  LEVEL1_PRODUCTION_DATEINT

                                                  Date of production for raw Level 1 data as ms since epoch

                                                  PIXEL_QA_VERSIONSTRING

                                                  Version of the software used to produce the 'pixel_qa' band

                                                  SATELLITESTRING

                                                  Name of satellite

                                                  SENSING_TIMESTRING

                                                  Time of the observations as in ISO 8601 string. (Obtained from raw Landsat metadata)

                                                  SOLAR_AZIMUTH_ANGLEDOUBLE

                                                  Solar azimuth angle

                                                  SR_APP_VERSIONSTRING

                                                  LaSRC version used to process surface reflectance

                                                  WRS_PATHINT

                                                  WRS path number of scene

                                                  WRS_ROWINT

                                                  WRS row number of scene