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This document describes the PMEL-EPIC/CTD convention for writing netCDF data files with the EPS library, for use with the EPIC software package for oceanographic data.

Documentations located at ftp://ftp.unidata.ucar.edu/pub/netcdf/Conventions/PMEL-EPIC describe the Conventions common to all PMEL-EPIC style netCDF data files. Please see the accompanying documents describing Conventions specific to specific data types:

• EPIC netCDF General Conventions
• Conventions for Time Series Type Data
• Conventions for Shipboard ADCP Data (preliminary)

This document is an addendum to the PMEL-EPIC Conventions document in the Unidata /pub/netcdf/Conventions/PMEL-EPIC directory, describing those characteristics which are specific to CTD-type data. This includes CTD, XBT and bottle data.

The global attributes here are recommended for use with CTD-type data. Additional attributes may be defined by the user.

• Example CTD plots
• Example C, Fortran, and PPC programs use EPIC netCDF Convention
• Example files in netCDF and classic EPIC format (compressed binary)

EPS Standard Global Hydrographic Attributes

Notes:
* Required for data files containing CTD-type data (profile data). All other attributes are optional. Additional attributes can be included as desired.

"i" is integer
"c" is character
"r" is real
"length" is maximum length in bytes for all types
AUTO means the attribute is set automatically by the EPS library.