Anisotropic Radiance/Reflectance Simulations for Clouds

This data file contains anisotropic (sensor viewing azimuth angles range from 0 to 360° of every 5°) radiance and reflectance calculations at the top of the atmosphere for clouds.

Radiative transfer parameters:

1) sensor viewing zenith angle of 45°;

2) solar zenith angle of 60°;

3) solar azimuth angle of 0 (north);

4) surface albedo (Lambertian): 0.03;

5) cloud optical thickness: 10;

6) cloud effective radius: 12 micron;

7) cloud vertical location: 0.5 km to 1 km.

Data description:

rad_555: 1D array (size of 73), radiance at 555 nm, units in W/m²/nm/sr;

ref_555: 1D array (size of 73), reflectance at 555 nm;

rad_vis: 1D array (size of 73), broadband (350 - 700 nm) radiance, units in W/m²/nm/sr;

ref_vis: 1D array (size of 73), broadband (350 - 700 nm) reflectance;

vaa: 1D array (size of 73), sensor viewing azimuth angles, units in degree;

vza0: single value, sensor viewing zenith angle, units in degree;

saa0: single value, solar azimuth angle, units in degree;

sza0: single value, solar zenith angle, units in degree.

Notes:

This data file is generated by the code included in EaR³T (https://github.com/hong-chen/er3t, function in ). The listed parameters such as solar and sensor viewing geometries, cloud optical properties, surface albedo etc. can be customized.