Number of DEM cells validated (cells): 2506
Total number of ground photons used to validate this DEM (photons): 79117
Mean number of photons used to validate each cell (photons): 31.57
Mean bias error (DEM - ICESat-2) (m): 4.53
RMSE (m): 10.16
Number of cells with bathymetry photons: 115
Mean roughness (stddev. of photon elevations within each cell (m)): 1.77
== Decile ranges of errors (DEM - ICESat-2) (m) (Look for long-tails, indicating possible artifacts.) ===
      0 percentile error level (m): -29.29
      1 percentile error level (m): -18.27
      5 percentile error level (m): -7.76
     10 percentile error level (m): -3.97
     20 percentile error level (m): -1.06
     30 percentile error level (m): 0.15
     40 percentile error level (m): 1.11
     50 percentile error level (m): 2.72
     60 percentile error level (m): 4.71
     70 percentile error level (m): 7.09
     80 percentile error level (m): 10.56
     90 percentile error level (m): 17.31
     95 percentile error level (m): 23.23
     99 percentile error level (m): 30.68
    100 percentile error level (m): 36.49
== RMSE by ICESat-2 coverage decile (how coverage/sampling bias affects reported accuracy) ===
    RMSE for grid cells with >0.4% coverage (100% of cells) (m): 10.16
    RMSE for grid cells with >1.8% coverage (90% of cells) (m): 10.21
    RMSE for grid cells with >2.2% coverage (80% of cells) (m): 10.25
    RMSE for grid cells with >3.1% coverage (70% of cells) (m): 9.79
    RMSE for grid cells with >3.6% coverage (60% of cells) (m): 9.61
    RMSE for grid cells with >4.0% coverage (50% of cells) (m): 9.57
    RMSE for grid cells with >4.9% coverage (40% of cells) (m): 9.01
    RMSE for grid cells with >5.8% coverage (30% of cells) (m): 8.61
    RMSE for grid cells with >7.1% coverage (20% of cells) (m): 7.85
    RMSE for grid cells with >10.2% coverage (10% of cells) (m): 5.80