European Commission

Description

The following three measurements are geometrically defined as brfop. Nevertheless, for

brfop_co_sgl only the photons interacting once with the leaves or woody elements (and not with the soil) are considered in the computation of BRFs.
brfop_mlt only the photons which interacted twice with any scatterer in the scene are considered in the computation of BRFs.

brfop_uc_sgl only the photons which interacted has interacted once only with the underlying background, i.e. the soil (and with nothing else), are considered in the computation of BRFs.

They can be computed for all scenes, bands and illumination conditions defined for brfop.

The output file format is the same as defined in brfop

Output file format

Header

Header line content	Header line format
# rows	%4d
# columns in file	%4d
Ratio of filtered rays *	%.6f

Columns content

Body lines content	Body lines format
$θ_{i}$ [rad]	%.6f
$θ_{r}$ [rad]	%.6f
$ϕ_{i}$ - $ϕ_{r}$ [rad]	%.6f
BRF	%.6f
Std. Dev. BRF *	%.6f

*: if available, otherwise set to −1.000000.

where:

$θ_{i}$ : Solar Zenith Angle;
$ϕ_{i}$ : Solar Azimuth Angle;
$θ_{r}$ : Viewing Zenith Angle
$ϕ_{r}$ : Viewing Azimuth Angle
Ratio of filtered rays: The number of rays that perform the measurement divided by the total number of incident rays (for ray-tracing RT models only).
Std. Dev. BRF: Indication of the uncertainty in the BRF estimate as estimated from the radiative transfer model itself

Example output

76	5	1.000000
0.349066	1.308997	-1.570796	0.422619	-1.000000
0.349066	1.274090	-1.570796	0.421888	-1.000000
0.349066	1.239184	-1.570796	0.420397	-1.000000
0.349066	1.204277	-1.570796	0.418608	-1.000000
0.349066	1.169371	-1.570796	0.416181	-1.000000
0.349066	1.134464	-1.570796	0.413340	-1.000000
0.349066	1.099558	-1.570796	0.410499	-1.000000
0.349066	1.064651	-1.570796	0.407356	-1.000000
0.349066	1.029744	-1.570796	0.403885	-1.000000
0.349066	0.994838	-1.570796	0.400383	-1.000000
0.349066	0.959931	-1.570796	0.397118	-1.000000
0.349066	0.925025	-1.570796	0.393745	-1.000000
0.349066	0.890118	-1.570796	0.390221	-1.000000
0.349066	0.855211	-1.570796	0.386832	-1.000000
0.349066	0.820305	-1.570796	0.383651	-1.000000
0.349066	0.785398	-1.570796	0.380617	-1.000000
0.349066	0.750492	-1.570796	0.377556	-1.000000
0.349066	0.715585	-1.570796	0.374610	-1.000000
0.349066	0.680678	-1.570796	0.371996	-1.000000
0.349066	0.645772	-1.570796	0.369534	-1.000000
0.349066	0.610865	-1.570796	0.367106	-1.000000
0.349066	0.575959	-1.570796	0.364795	-1.000000
0.349066	0.541052	-1.570796	0.362805	-1.000000
0.349066	0.506146	-1.570796	0.361052	-1.000000
0.349066	0.471239	-1.570796	0.359393	-1.000000
0.349066	0.436332	-1.570796	0.357765	-1.000000
0.349066	0.401426	-1.570796	0.356486	-1.000000
0.349066	0.366519	-1.570796	0.355300	-1.000000
0.349066	0.331613	-1.570796	0.354271	-1.000000
0.349066	0.296706	-1.570796	0.353392	-1.000000
0.349066	0.261799	-1.570796	0.352719	-1.000000
0.349066	0.226893	-1.570796	0.352157	-1.000000
0.349066	0.191986	-1.570796	0.351708	-1.000000
0.349066	0.157080	-1.570796	0.351353	-1.000000
0.349066	0.122173	-1.570796	0.351117	-1.000000
0.349066	0.087266	-1.570796	0.350951	-1.000000
0.349066	0.052360	-1.570796	0.350809	-1.000000
0.349066	0.017453	-1.570796	0.350762	-1.000000
0.349066	0.017453	1.570796	0.350762	-1.000000
0.349066	0.052360	1.570796	0.350809	-1.000000
0.349066	0.087266	1.570796	0.350951	-1.000000
0.349066	0.122173	1.570796	0.351117	-1.000000
0.349066	0.157080	1.570796	0.351353	-1.000000
0.349066	0.191986	1.570796	0.351708	-1.000000
0.349066	0.226893	1.570796	0.352157	-1.000000
0.349066	0.261799	1.570796	0.352719	-1.000000
0.349066	0.296706	1.570796	0.353392	-1.000000
0.349066	0.331613	1.570796	0.354271	-1.000000
0.349066	0.366519	1.570796	0.355300	-1.000000
0.349066	0.401426	1.570796	0.356486	-1.000000
0.349066	0.436332	1.570796	0.357765	-1.000000
0.349066	0.471239	1.570796	0.359393	-1.000000
0.349066	0.506146	1.570796	0.361052	-1.000000
0.349066	0.541052	1.570796	0.362805	-1.000000
0.349066	0.575959	1.570796	0.364795	-1.000000
0.349066	0.610865	1.570796	0.367106	-1.000000
0.349066	0.645772	1.570796	0.369534	-1.000000
0.349066	0.680678	1.570796	0.371996	-1.000000
0.349066	0.715585	1.570796	0.374610	-1.000000
0.349066	0.750492	1.570796	0.377556	-1.000000
0.349066	0.785398	1.570796	0.380617	-1.000000
0.349066	0.820305	1.570796	0.383651	-1.000000
0.349066	0.855211	1.570796	0.386832	-1.000000
0.349066	0.890118	1.570796	0.390221	-1.000000
0.349066	0.925025	1.570796	0.393745	-1.000000
0.349066	0.959931	1.570796	0.397118	-1.000000
0.349066	0.994838	1.570796	0.400383	-1.000000
0.349066	1.029744	1.570796	0.403885	-1.000000
0.349066	1.064651	1.570796	0.407356	-1.000000
0.349066	1.099558	1.570796	0.410499	-1.000000
0.349066	1.134464	1.570796	0.413340	-1.000000
0.349066	1.169371	1.570796	0.416181	-1.000000
0.349066	1.204277	1.570796	0.418608	-1.000000
0.349066	1.239184	1.570796	0.420397	-1.000000
0.349066	1.274090	1.570796	0.421888	-1.000000
0.349066	1.308997	1.570796	0.422619	-1.000000

brfop_mlt

Description

Output file format

Header

Columns content

Example output