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Local attributes describe the data and provide summary data on the results of the snow cover algorithm. Two types of local attributes are reported: HDF predefined, and custom local attributes.
| Attribute Name | Reserved Label(s) | Definition | Sample Value |
| Label | long_name | Long name of the SDS | Snow_covered_land |
| Unit | units | SI units of the data, if any | none |
| Format | format | How the data should be viewed in Fortran format notation | I3 |
| Coordinate system | coordsys | Coordinate system to use for the data | latitude, longitude |
| Range | valid_range | Max and min values within a selected data range | 0-254 |
| Fill Value | _FillValue | Data used to fill gaps in the swath | 255 |
| Calibration | scale_factor scale_factor_err add_offset add_offset_err calibrated_nt |
Not used | Not used |
| Attribute Name | Definition | Sample Value |
| missing_value | Coded integer used to indicate missing data | 0 |
| Snow_cover_pct | Areal coverage of snow | 68 |
| Cloud_cover_pct | Percentage of cloud in the tile | 5 |
| Land_area_pct | Percentage of land in the tile | 89 |
| Key | Key to interpretation of coded integers | See coded integers Exception: 254 = non-production mask |
| Attribute Name | Definition | Sample Value |
| Nominal_results | Percentage of pixels for which algorithm execution was nominal | 95 |
| Abnormal_results | Percentage of pixels for which algorithm execution encountered conditions outside of nominal range |
2 |
| Cloud_obscured | Percentage of pixels that were identified as cloud | 2 |
| Invalid_input | Percentage of invalid L1B input data | 1 |
| Outside relative azimuth | Percentage of pixels observed at a relative azimuth range of 150° to 210°. | 1 |
| Key | Explanation of the QA flag | Bits 0 and 1: 00 = nominal 01 = abnormal 10 = cloud-obscured 11 = invalid Bit 2: 0 = within azimuth limit 1 = beyond azimuth limit Bit 3: 0 = over observation coverage min 1 = under observation coverage min |
