Dataset name:
Atmospheric Carbon Dioxide Dry Air Mole Fractions from
the NOAA ESRL Carbon Cycle Cooperative Global Air Sampling
Network, 1968-2012

Varialbe name: 
co2

Reference of original data:
Dlugokencky, E.J., P.M. Lang, K.A. Masarie, A.M. Crotwell, and
   M.J. Crotwell (2013), Atmospheric Carbon Dioxide Dry Air Mole
   Fractions from the NOAA ESRL Carbon Cycle Cooperative Global Air
   Sampling Network, 1968-2012, Version: 2013-08-28,

Downloaded site:
ftp://aftp.cmdl.noaa.gov/data/trace_gases/co2/flask/surface/.

Downloaded Date:
September 20, 2013

Downloaded by:
Mingquan Mu
Earth System Science, University of California, Irvine

Name and Version of original source:
N/A

Start date:
January 1968

End date:
December 2012

Temporal resolution:
monthly

Spatial resolution:
Site obervatons

Unit: 
ppm

Data format: 
ascii