NOAA Ship Discoverer
Carbon Monoxide data
Reduced and Compiled by NOAA-PMEL
Version 1, 30 August 1996
Jim Johnson

Data File ace1_co.csv contains the following parameters:

DOY
CO (in ppb)

DOY
The data are compiled in six hour averages. The time is given as decimal 
day of year (DOY) such that DOY 32.5 is 12 noon GMT on February 1.  The 
time given is from the center of the six hour period.

Carbon Monoxide

CO was measured with a GC based system.  The system made 2 air 
measurements every 35 minutes.  The system also measured CO from a 
seawater equilibrator, and from 2 gas standards.  The standards have 
been calibrated to standards maintained by NOAA CMDL.

The data were cleaned and averaged into 6hour averages.  6 hour 
intervals with no CO data are tagged with a -99.