Pre-Deployment Setup

The following web forms available from the PhOG local page must be completed for each new buoy. These forms are necessary to get the correct sensor serial numbers and metadata needed for the netCDF files. These forms must be filled out BEFORE the processing can begin in test mode for a new buoy. These are usually done several weeks before a deployment. If a cruise in underway and something like an aanderaa is swapped out on an existing mooring (which has distinct sensor calibration information with each sensor), we will need to increment the buoy ID and the previous forms listed below need to be edited for the new mooring id as well as any sensor changes.

The above forms will enable the netCDF files to be updated with the specific information needed for the following :

1. The GOES platform ID and the GOES binary file layout for the particular buoy. This may modifying the mretrieve_goes_buffers.m routine.

2. RDI doppler processing has no special requirements other than the correct number of doppler bins and the depths be properly set in the NetCDF files. This is usually a concern only for the GOES doppler processing, as the campbell logger usually accounts for the full 30 bins..

3. 1. The met buffer contains the barometric pressure counts which need to be converted to pressure readings. There are 3 different sets of calibrations which need to be determined.

      • Control Box pressure cals (determined by engineering group for each control box A/D). These are stored instruments.control_box_pressure_cals.

      • Barometric pressure cals (from manufacturer's latest pressure cal). These are stored in instruments.sensor_setpr_cals.

      • Secondary pressure cals (nominally 1,0). These are the final 'fudge' factor which may be applied to make sure that the computed pressure matches nearby buoys.

   The SBE16 plus usually has either an optional C Star transmissometer (buoy K) or an oxygen sensor (A and C), which require several calibration coefficients and extra parameters each. The manual for each instrument should provide the calibration coefficients. The oxygen calibrations are stored in the mysql table instruments.sbe02_cals.

   Table 1. SBE16plus Requirements

   Requirement	Description	NetCDF Construct	SED Script Tag
   Boc	oxygen current bias	dissolved_oxygen:Boc	SBE16_BOC
   Soc	oxygen current slope	dissolved_oxygen:Soc	SBE16_SOC
   tcor	temperature correction factor for membrane permeability	dissolved_oxygen:TCor	SBE16_TCOR
   pcor	pressure correction factor for membrane permeability	dissolved_oxygen:PCor	SBE16_PCOR
   offset	voltage produced for zero oxygen current	dissolved_oxygen:offset	SBE16_OXOFFSET
   Vd	analog output voltage of the instrument with the beam blocked.	transmissivity:Vd	V_DARK
   Vair	analog output voltage of the instrument with a cleared beam path	transmissivity:Vair	V_AIR
   Vref	analog output voltage of the instrument with clean water in the path	transmissivity:Vref	V_REF
   path length	Optical path length, usually 0.10 or 0.25 m. This is not set at the factory.	transmissivity:pathlength	PATHLENGTH
   Transmissometer Serial number	Serial number of the transmissometer	{transmissivity,c}:sensor_sn	TRANSMISSOMETER_SERIAL_NUMBER
   Instrument Number	Id of the instrument as identified by the campbell logger. For an SBE16 plus, this is usually 11 or 12. It is required in order to load the SBE16 NetCDF files into the database.	global attributes:instrument_NUMBER	SBE16_INSTRUMENT_NUMBER
   Instrument Depth	The SBE16 has gone in at 10, 15, 20, and 50 meters depth, so this is not hard coded.	Value of depth variable.	SBE16_DEPTH

4. All the optics instruments (OCR504, OCR507, AC9, VSF, and DFLS) come with calibration files and tables. These need to be tested and loaded into the proper locations. The m-files to test the calibration files are

   • ReadDFLScal

   • ReadOCRcal

   • ReadVSF3cal

   • ReadAC9cal

   The directories under which these should be stored is ${DATA_ROOT}/ancillary/optics/Calibrations

5. If an Aanderaa current meter is part of the deployment plan (usually it is for all buoys), then the following calibration parameters are required. These are stored in the mysql table instruments.sensor_aancm_cals.

   Table 2. Aanderaa Current Meter Requirements

   Requirement	Description	NetCDF Attribute	SED Script Tag
   Aanderaa Wide Range Temperature Calibrations	Calibration coefficients to turn raw temperature counts into celsius. It is always the wide range set of calibrations.	temperature:calibration_coefs	AANDERAA_WT_CALIBRATION
   Aanderaa Serial number	Serial number of the Aanderaa current meter	global attributes:aanderaa_serial_number	AANDERAA_SERIAL_NUMBER

   There are also calibration coefficients for the current speed and direction, but these coefficients have thusfar remained the same for all deployments, so they are currently hardwired into the CDL files.

6. If an SBE16 or SBE1603 is part of the deployment plan, the instrument_number must be determined. This id is in the 2nd column in the Campbell data stream and seems to usually be 11 or 12.