Atmospheric CO2 from flask air samples at 10 sites in the SIO air sampling network, from CDIAC/TrendsEntry ID: CDIAC_CO2_FLASKS_SIO
Abstract: The Carbon Dioxide Research Group, Scripps Institution of Oceanography,
University of California, San Diego, has provided this data set, which includes
long-term measurements of near-surface atmospheric CO2 concentrations at 10
locations spanning latitudes 82N to 90S. Most of the data are based on
replicated (collected at the same time and place) flask samples taken at
intervals of approximately ... one week to one month and subsequently subjected to
infrared analysis. Periods of record begin in various years, ranging from 1957
(for the South Pole station) to 1985 (for Alert, Canada), and all flask data
records except for Christmas Island and Baring Head, New Zealand extend through
year 2001. Christmas Island data end with August, 2001 and Baring Head data end
with October 2001. Weekly averages of continuous data from Mauna Loa
Observatory, Hawaii, are available back to March 1958. Similar weekly averages
are also available for La Jolla, California, from November 1972 to October
1975, and for the South Pole from June 1960 to October 1963. At the South Pole,
however, this ÒweeklyÓ averaged data is usually based on only one day of
continuous sampling, and only about 2 averages per month are given. Flask data
from all stations include replicate measurements and flagged questionable data;
thus, they differ from the usual presentations of CO2 data (e.g., Keeling and
Whorf, 2004) which are monthly averaged values fitted to curves as discussed by
Keeling et al. (1989).
Data Set Citation
Dataset Originator/Creator: Keeling, C.D. and T.P. Whorf
Dataset Title: Atmospheric CO2 concentrations derived from flask air samples at sites in the SIO network
Dataset Series Name: Trends: A Compendium of Data on Global Change
Dataset Release Date: 2004
Dataset Release Place: Oak Ridge, TN
Dataset Publisher: Carbon Dioxide Information Analysis CenterOnline Resource: http://cdiac.esd.ornl.gov/trends/co2/sio-keel-flask/sio-keel-flask....
Start Date: 1957-01-01Stop Date: 2001-12-31
Temporal Resolution: monthly, weekly
Temporal Resolution Range: Weekly - < Monthly
ISO Topic Category
Data Set Progress
Distribution Media: online www
Distribution Format: ascii
Guenther, P.R., A. Bollenbacher, C.D. Keeling, and D. Moss. 2002. Technical Report: Infrared Analyses of NOAA Primary CO2-in-Air Reference Gas Standards at SIO, 1991-1999.
Guenther, P.R., G. Emanuele, and C.D. Keeling. 2002. Alternative
Formulation of 1985-1999 Calibrations after Re-calibration of 4cc Chanber
Volume of Mercury Manometer. Addendium to: Scripps Reference Gas Calibration System for Carbon-Dioxide-in Nitrogen and Carbon Dioxide-in-Air Standards: Revision of 1999, February 2002. See Diagram of the constant-volume mercury-column manometer.
Keeling, C. D., R. B. Bacastow, A. E. Bainbridge, C. A. Ekdahl, P. R. Guenther, L. S. Waterman, and J. F. S. Chin. Atmospheric carbon dioxide variations at Mauna Loa Observatory, Hawaii, Tellus 28, 538-551.
Keeling, C.D., R.B. Bacastow, A.F. Carter, S.C. Piper, T.P. Whorf, M. Heimann, W.G. Mook, and H. Roeloffzen. 1989. A three-dimensional model of
atmospheric CO2 transport based on observed winds: 1. Analysis of observational data. In D.H. Peterson (ed.), Aspects of Climate Variability in the Pacific and the Western Americas, 165-236, Geophysical Monograph 55, American Geophysical Union, Washington, DC.
Keeling, C.D., T.P. Whorf, M. Wahlen & J. van der Plicht. 1995. Interannual extremes in the rate of rise of atmospheric carbon dioxide since 1980, Nature 375, 666-670.
Keeling, C.D., S.C. Piper, R.B. Bacastow, M. Wahlen, T.P. Whorf, M. Heimann, and H.A. Meijer. 2001. Exchanges of Atmospheric CO2 and CO1313CO2 with the Terrestrial Biosphere and Oceans from 1978 to 2000. I. Global Aspects. SIO Reference No. 01-06 (Revised from SIO Reference No. 00-21), June 2001.
Keeling, C.D., P.R. Guenther, G. Emanuele III, A. Bollenbacher, and D.J. Moss. 2002. Scripps Reference Gas Calibration System for Carbon
Dioxide-in-Nitrogen and Carbon Dioxide-in-Air Standards: Revision of 1999 (with Appendix and Addendum). SIO Reference Series No. 01-11. See Diagram of the constant-volume mercury-column manometer.
Manning, A.C.., R.F. Keeling, L.E. Katz and W.J. Paplawsky. 2003.
Interpreting the seasonal cycles of atmospheric oxygen and carbon dioxide
concentrations at American Samoa Observatory. Geophysical Research Letters,
Vol. 30, No. 6, pp 66-1 - 66-4.
Pales, J. C., and C. D. Keeling. 1965. The concentration of atmospheric
carbon dioxide in Hawaii, J. Geophys. Res. 70, 6053-6076.
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Creation and Review Dates
DIF Creation Date: 2005-04-21
Last DIF Revision Date: 2005-04-21