Nortek Time Series
Data files for Nortek Current Profilers are described here. Ancillary data (e.g., temperature, pitch, roll) are also available independently.
Revision History
- 201011XX: Beta product released
Formats
The formats available and basic information will be described here. Also include post-processing requirements, as necessary: Software or files needed for user to use data product
PRF
This binary format is specific to the manufacturer. When using Nortek data acquisition software, data is normally stored in this way. Although we use custom-built drivers to communicate with our instruments, we can use the raw data in the log file to produce the PRF file which can be interpreted by Nortek post-processing software.
To produce the file, the following requirements apply:
- A new prf file is started at the start of each day, when the maximum records per file is exceeded (currently set as 2880), or when the driver is restarted (this should account for configuration changes, site changes, etc).
- Only records with valid checksums are included.
- The instrument date/time field is replaced by the NEPTUNE timestamp at the beginning of the log file (since this timestamp is more accurate than the instrument clock), and the checksum is recalculated.
- instrument hardware, head and user configuration strings are inserted as the first three lines of the PRF file.
This format is further described in the manufacturer's documentation.
Example: BH_POD2_AD2M_20101018T160041.704.prf
Discussion
To comment on this product, click Add Comment below.