Convert reflectivity to reflectivity factor
eta_to_dbz(eta, wavelength, K = 0.93)
eta | reflectivity in cm^2/km^3 |
---|---|
wavelength | radar wavelength in cm |
K | norm of the complex refractive index of water |
reflectivity factor in dBZ
# reflectivity factor (dBZ) at C-band for a reflectivity eta=10000 cm^2/km^3: eta_to_dbz(10000, 5)#> [1] 13.73165# reflectivity factor (dBZ) at S-band for a reflectivity eta=10000 cm^2/km^3: eta_to_dbz(10000, 10)#> [1] 25.77285# expected reflectivity factor (dBZ) for an # animal density of 1000 individuals/km^3 # and a radar cross section of 11 cm^2 per individual: # at C-band and S-band: eta_to_dbz(1000 * 11, 5) # C-band#> [1] 14.14557eta_to_dbz(1000 * 11, 10) # S-band#> [1] 26.18677