Vector
Instrument orientation
Orientation in stglib refers to the probe head, whether pointing UP (sample volume above probe) or DOWN (sample volume below probe).
The orientation status code bit in the Vector data file refers to the direction of the z-axis, whether positive UP or down. For more information, see “The Comprehensive Manual - Velocimeters” available from Nortek.
The orientation
variable (indicating the probe head orientation) in the config file is required and the user will be warned if it does not match what the instrument reports.
Instrument data to raw .cdf
First, export data from the Vector software to text format.
Convert from text to a raw netCDF file with .cdf
extension using runvechdr2cdf.py. This script
depends on two arguments, the global attribute file and extra configuration information configuration files.
runvecdat2cdf.py
Convert Vector text files to raw .cdf format. Run this script from the directory containing Vector files.
usage: runvecdat2cdf.py [-h] gatts config
Positional Arguments
- gatts
path to global attributes file (gatts formatted)
- config
path to instrument configuration file (YAML formatted)
Raw .cdf to CF-compliant .nc
Convert the raw .cdf data into an CF-compliant netCDF file with .nc extension, optionally including atmospheric correction of the pressure data.
runveccdf2nc.py
Convert raw Vector .cdf format to processed .nc files, optionally compensating for atmospheric pressure
usage: runveccdf2nc.py [-h] [--atmpres ATMPRES] cdfname
Positional Arguments
- cdfname
raw .cdf filename
Named Arguments
- --atmpres
path to cdf file containing atmopsheric pressure data
Compute wave statistics
Use stglib’s built-in wave-statistics toolbox to compute a wave-statistics file.
Experimental PUV support is also present. Testing welcome!
runvecnc2waves.py
Generate Vector waves statistics file
usage: runvecnc2waves.py [-h] ncname
Positional Arguments
- ncname
processed .nc filename