Attenuation (c)

Input

  1. Raw attenuation counts for each of the nine AC9 wavelengths. In the NetCDF file, these are beam_attenuation_signal_xxxnm_counts, where xxx is 412, 440, 488, 510, 532, 555, 650, 676, and 715 nanometers.

  2. Attenuation reference counts for each of the nine AC9 wavelengths. In the NetCDF file, these are beam_attenuation_reference_xxxnm_counts, where xxx is 412, 440, 488, 510, 532, 555, 650, 676, and 715 nanometers.

  3. Serial number for AC9 instrument

  4. Internal temperature counts for AC9 sample, ac9_internal_temperature.

  5. Temperature from nearest MicroCAT, temperature.

  6. Salinity from nearest MicroCAT, salinity.

Ancillary Requirements

  1. AC9 calibration file.

MATLAB m-file

AC9Convert.m

Output

Attenuation coefficients for each of AC9 wavelengths, units of 1/m. In the output NetCDF file, this is stored as one variable, c. This product is identical to beam_attenuation_TS.