Converts reflectivity factor (dBZ) to reflectivity (eta).
dbz_to_eta(dbz, wavelength, K = 0.93)Numeric. Reflectivity factor, in dBZ.
Numeric. Radar wavelength, in cm.
Numeric. Norm of the complex refractive index of water.
Reflectivity, in cm^2/km^3.
# Calculate eta for a 7 dBZ reflectivity factor at C-band:
dbz_to_eta(7, 5)
#> [1] 2122.439
# Calculate eta for a 7 dBZ reflectivity factor at S-band:
dbz_to_eta(7, 10)
#> [1] 132.6524
# Calculate animal density for a 5 dBZ reflectivity factor, assuming a
# radar cross section of 11 cm^2 per individual
dbz_to_eta(7, 5) / 11 # C-band
#> [1] 192.949
dbz_to_eta(7, 10) / 11 # S-band
#> [1] 12.05931