Accessing data in the cruise directoryΒΆ

  1. ADCP data in raw can be accessed using Matlab and the UH program read.m These data, with no other information, will have values of velocity, amplitude, and correlation (or spectral width) for each beam. The time is the instrument time, which was set to the computer time when logging was started.
  2. ADCP data in raw and gbin can be combined using Matlab and the UH program get_xfraw.m. This will result in a file that includes earth coordinates, heading, position, and an estimate of ocean velocity over the time range of the raw data file.
  3. The proc directory contains the processing tree for each instrument. One codas database (and supporting files) exists for each instrument+pingtype combination. In each processing directory (eg vg0810/proc/os75nb) these may be of interest:
data files to use
coarse resolution averaged ocean velocity vector/vect*.mat
moderate resolution averaged ocean velocity contour/cont*.mat
every bin and every profile (matlab) contour/allbins_*.mat
every bin and every profile (netCDF) contour/*.nc
every bin and every profile (CODAS database) adcpdb/a*.blk
figures from the cruise png_archive/*.png

See this page for more details about ADCP data access.