How FIDUCEO codes the effects table
The table below gives a brief summary of how each descriptor in the FIDUCO effects table is codified to produce a NetCDF-compliant standard for coding the effects table in the full-FCDR.
Note that the discussion given in the table below is not intended to be all encompassing, and that further information on this topic can be found in ‘D2_2a Principles of FCDR Effects-Tables’, which has been produced as part of the FIDUCEO project.
| Table descriptor | How this is codified | |
|---|---|---|
| Name of effect | A unique name for each source of uncertainty in a term of the measurement function | |
| Affected term in measurement function | Name and standard symbol of affected term | |
| Instruments in the series affected | Identifier of the specific instrument / satellite platform where this effect matters | |
| Correlation type and form | element-to-element [elements] | One of a number of error correlation forms arising in EO (see Tutorial 4 in this series for more information). |
| from line to line [lines] | ||
| between images [images] | ||
| Between orbits [orbit] | ||
| Over time [time] | ||
| Correlation scale | element-to-element [elements] | In units of pixels, lines, time or images/orbits – what is the scale of the correlation form? |
| from line to line [lines] | ||
| between images [images] | ||
| Between orbits [orbit] | ||
| Over time [time] | ||
| Channels/bands | List of channels / bands affected | Channel names in standard form |
| Error correlation coefficient matrix | A matrix | |
| Uncertainty | PDF shape | Functional form of estimated error distribution for the term |
| units | Units in which PDF shape is expressed (units of term, or can be as percentage etc) | |
| magnitude | Value(s) or parameterisation estimating width of PDF | |
| Sensitivity coefficient | Value, equation or parameterisation of sensitivity of measurand to term | |