How to Obtain the Data and Documentation

The NOAA/CMDL flask CO2 database is available in machine-readable form, upon request, from CDIAC without charge. CDIAC will also distribute subsets of the database as needed. The NOAA/CMDL flask CO2 database can be acquired from CDIAC's anonymous FTP area (see FTP access instructions below), on 9-track magnetic or 8-mm tape, or on IBM- or Macintosh-formatted floppy diskettes. Requests for 9-track magnetic tapes should include preferred tape specifications (i.e., 1600 or 6250 BPI, labeled or nonlabeled, ASCII or EBCDIC characters, variable or fixed-record lengths). Requests not accompanied by tape specifications will be filled on 9-track, 6250 BPI, nonlabeled tapes with ASCII characters with the file attributes shown on pages 21-29.

This documentation is available only from CDIAC. Requests should be addressed to

Carbon Dioxide Information Analysis Center
World Data Center A for Atmospheric Trace Gases
Oak Ridge National Laboratory
Post Office Box 2008
Oak Ridge, TN 37831-6335, USA

The tapes, diskettes, and documentation may also be ordered by telephone, facsimile, or electronic mail:

Telephone: (865) 574-3645 or (865) 574-0390
Fax: (865) 574-2232

Electronic mail: cdiac@ornl.gov

FTP access: ftp cdiac.esd.ornl.gov (or 128.219.24.36)

Enter anonymous as the userid.
Enter your electronic mail address as the password (e.g., tab@ornl.gov)
Change to the directory /pub/ndp005


The NOAA/CMDL flask CO2 database may also be obtained in machine-readable form from CMDL's anonymous FTP area. This area may be reached at the following address:

FTP access: ftp ccg.cmdl.noaa.gov (or 140.172.192.20)

Enter anonymous as the userid.
Enter your electronic mail address as the password (e.g., tab@ornl.gov)
Change to the directory /pub/data/co2/flask (for flask data) or-
Change to the directory /pub/data/co2/in-situ (for in-situ data)

The file flask.co2.tar.Z is a compressed tar file containing all of the files in the flask directory. If you would like all of the flask data, retrieve this file instead of each individual site file. File transfer should be in binary mode for this file, for example,

ftp> binary
ftp> get flask.co2.tar.Z
ftp>bye

Then type on your system

$ uncompress flask.co2.tar.Z
$ tar xvf flask.co2.tar


This will create the directory complete and place each of the flask site files inside that directory.

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