Hyperspectral Backscattering Coefficient (bb)
Hyperspectral Backscattering Coefficient (bb)
The backscattering coefficient (bb, units: m-1) quantifies light that is scattered into a backwards-facing hemisphere relative to the path of an incoming beam of light. Field measurements of bb are routinely measured in the visible range with fixed-angle volume scattering function (VSF) sensors at multi- or hyperspectral resolutions following community best practice. PACE OCI derives hyperspectral of bb using the GIOP-DC* algorithm.
*We note that GIOP-DC is currently for oceanic waters.
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Backscattering Coefficient (bb) Click to download data: Select bb matchup statistics | Select bb matchups |
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| Wavelength | Mean Bias | Limits of Agreement | Linear Slope | Linear Intercept | Linear Correlation | Rank Correlation | uRMSE [View plot] |
MedAE [View plot] |
Matchup Plots | |
| Low | High | |||||||||
| bb_490 | 1.79E-05 | -999 | -999 | 0.555 | 0.00183 | 0.936 | 0.883 | 0.00154 | 0.00107 | Click here |
| bb_510 | -2.36E-06 | -999 | -999 | 0.576 | 0.00159 | 0.943 | 0.907 | 0.00143 | 0.000951 | Click here |
| bb_560 | -000119 | -999 | -999 | 0.583 | 0.00122 | 0.952 | 0.928 | 0.00137 | 0.000752 | Click here |
| bb_620 | -2.27E-05 | -999 | -999 | 0.658 | 0.000861 | 0.956 | 0.933 | 0.00105 | 0.000599 | Click here |
Disclaimer: The unbiased RMESs and Median Absolute Errors shown in the hyperspectral plots are preliminary. Visitors should expect updated values over time due to incoming datasets with different spatial and temporal variability coverages and dynamic ranges, as well as to algorithm refinements.
bb Matchup Plots
The data plotted below are Bland-Altman plots and Scatter plots for select bb matchups.
