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Dataset / Atmospheric Monthly In Situ CO2 Data - Mauna Loa Observatory, Hawaii

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Atmospheric Monthly In Situ CO2 Data - Mauna Loa Observatory, Hawaii
Keeling, Charles D
Keeling, Ralph F
Date Created and/or Issued
1958 to present
Contributing Institution
UC San Diego, Research Data Curation Program
Scripps CO2 Program Data
Rights Information
Under copyright
Constraint(s) on Use: This work is protected by the U.S. Copyright Law (Title 17, U.S.C.). Use of this work beyond that allowed by "fair use" or any license applied to this work requires written permission of the copyright holder(s). Responsibility for obtaining permissions and any use and distribution of this work rests exclusively with the user and not the UC San Diego Library. Inquiries can be made to the UC San Diego Library program having custody of the work.
Use: This work is available from the UC San Diego Library. This digital copy of the work is intended to support research, teaching, and private study.
Rights Holder and Contact
UC Regents
Atmospheric in situ monthly CO2 data set taken at Mauna Loa, Observatory, Hawaii: Latitude 19.5°N, Longitude 155.6°W, Elevation 3397m. The MLO station is active and generates ongoing data sets, which will be updated here as they become available. These data are subject to revision based on recalibration of standard gases.
Research Data Curation Program, UC San Diego, La Jolla, 92093-0175 (
Data Usage: The data and graphics on this website are made freely available, with the understanding that appropriate credit will be given. For applications supporting peer-reviewed scientific publications, coauthorship may sometimes be appropriate. An example would be if an important result or conclusion depends on this product, such as the first account of a previously unreported phenomenon. Ethical usage requires disclosing intentions at early stages of the work in order to avoid duplicating ongoing studies at Scripps. For applications where coauthorship is not needed, which includes all applications outside of the peer-reviewed scientific literature, it is sufficient to acknowledge the Scripps CO2 program as the source. Please direct queries to Ralph Keeling (
To cite a particular archive version, include both the DOI and the archive date in the citation. A suggested citation is displayed in the component metadata for each archive.
References: C. D. Keeling, S. C. Piper, R. B. Bacastow, M. Wahlen, T. P. Whorf, M. Heimann, and H. A. Meijer, Atmospheric CO2 and 13CO2 exchange with the terrestrial biosphere and oceans from 1978 to 2000: observations and carbon cycle implications, pages 83-113, in "A History of Atmospheric CO2 and its effects on Plants, Animals, and Ecosystems", editors, Ehleringer, J.R., T. E. Cerling, M. D. Dearing, Springer Verlag, New York, 2005. C. D. Keeling, S. C. Piper, R. B. Bacastow, M. Wahlen, T. P. Whorf, M. Heimann, and H. A. Meijer, Exchanges of atmospheric CO2 and 13CO2 with the terrestrial biosphere and oceans from 1978 to 2000. I. Global aspects, SIO Reference Series, No. 01-06, Scripps Institution of Oceanography, San Diego, 88 pages, 2001.
This item presents data from the current data archive, as well as previous data archives. All archives include time series that extend back to the beginning of each record. Most users will want to use the most recent archive, which contains the latest data version as well as the most up-to-date records. The data in earlier archives may have been superseded in the latest version by updates to instrument calibrations or data filtering.
No linguistic content; Not applicable
Carbon dioxide
Keeling Curve
Mauna Loa (Hawaii)
Mauna Loa (Hawaii)

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