About Unique Data Tag Scheme
The Global Temperature and Salinity Profile Programme (GTSPP)
has developed and tested a procedure to generate unique data tags
for original ocean profile data by using the cyclic redundancy check
(CRC) algorithm and successfully incorporated the CRC algorithm into
its daily data processing stream.
The analyses of the CRC algorithm have been done by the US National
Oceanographic Data Center, who hosts the long-term archive centre
of the GTSPP. Up to mid-April 2012, the results of the analyses illustrated
that 72,141 (94.5%) of 76,355 stations received from real-time data
assembly centres matched with the delayed mode data stored in the
GTSPP long-term archive. The CRC was able to correctly resolve 116
possible exact and/or near duplicates that could not be matched by
The GTSPP has demonstrated the effectiveness of using CRC calculation
as a unique tag for upper ocean temperature data. And the evidence
here demonstrates the usefulness of that unique data tag. This Guide
describes how the CRC algorithm can be used to generate unique data
tags for ocean profile data.
A report on "the Use of the Cyclic Redundancy Check Algorithm
to Generate Unique Data Tags for Ocean Profile Data" is available here.