Atmospheric Carbon Dioxide Record from Mauna Loa
Abstract
The Mauna Loa atmospheric CO2 measurements constitute the longest continuous record of atmospheric CO2 concentrations available in the world. The Mauna Loa site is considered one of the most favorable locations for measuring undisturbed air because possible local influences of vegetation or human activities on atmospheric CO2 concentrations are minimal and any influences from volcanic vents may be excluded from the records. The methods and equipment used to obtain these measurements have remained essentially unchanged during the 51-year monitoring program.Because of the favorable site location, continuous monitoring, and careful selection and scrutiny of the data, the Mauna Loa record is considered to be a precise record and a reliable indicator of the regional trend in the concentrations of atmospheric CO2 in the middle layers of the troposphere. On the basis of flask samples collected at Mauna Loa, and analyzed by SIO, the annual average of the fitted concentrations of CO2 rose from 315.98 ppmv in 1959 to 385.34 ppmv in 2008. This represents an average annual growth rate of 1.4 ppmv per year in the in situ values at Mauna Loa.
- Authors:
-
- Scripps Institution of Oceanography; Scripps Institution of Oceanography
- Publication Date:
- Other Number(s):
- doi:10.3334/CDIAC/atg.035
- Research Org.:
- Environmental System Science Data Infrastructure for a Virtual Ecosystem; CDIAC
- Sponsoring Org.:
- U.S. DOE > Office of Science > Biological and Environmental Research (BER) (SC-23)
- Subject:
- 54 ENVIRONMENTAL SCIENCES; Carbon Dioxide; EARTH SCIENCE > ATMOSPHERE > AIR QUALITY
- OSTI Identifier:
- 1394401
- DOI:
- https://doi.org/10.3334/CDIAC/atg.035
Citation Formats
Keeling, Ralph F., Piper, Steve C., Bollenbacher, Allen F., and Walker, J S. Atmospheric Carbon Dioxide Record from Mauna Loa. United States: N. p., 2008.
Web. doi:10.3334/CDIAC/atg.035.
Keeling, Ralph F., Piper, Steve C., Bollenbacher, Allen F., & Walker, J S. Atmospheric Carbon Dioxide Record from Mauna Loa. United States. doi:https://doi.org/10.3334/CDIAC/atg.035
Keeling, Ralph F., Piper, Steve C., Bollenbacher, Allen F., and Walker, J S. 2008.
"Atmospheric Carbon Dioxide Record from Mauna Loa". United States. doi:https://doi.org/10.3334/CDIAC/atg.035. https://www.osti.gov/servlets/purl/1394401. Pub date:Wed Dec 31 23:00:00 EST 2008
@article{osti_1394401,
title = {Atmospheric Carbon Dioxide Record from Mauna Loa},
author = {Keeling, Ralph F. and Piper, Steve C. and Bollenbacher, Allen F. and Walker, J S},
abstractNote = {The Mauna Loa atmospheric CO2 measurements constitute the longest continuous record of atmospheric CO2 concentrations available in the world. The Mauna Loa site is considered one of the most favorable locations for measuring undisturbed air because possible local influences of vegetation or human activities on atmospheric CO2 concentrations are minimal and any influences from volcanic vents may be excluded from the records. The methods and equipment used to obtain these measurements have remained essentially unchanged during the 51-year monitoring program.Because of the favorable site location, continuous monitoring, and careful selection and scrutiny of the data, the Mauna Loa record is considered to be a precise record and a reliable indicator of the regional trend in the concentrations of atmospheric CO2 in the middle layers of the troposphere. On the basis of flask samples collected at Mauna Loa, and analyzed by SIO, the annual average of the fitted concentrations of CO2 rose from 315.98 ppmv in 1959 to 385.34 ppmv in 2008. This represents an average annual growth rate of 1.4 ppmv per year in the in situ values at Mauna Loa.},
doi = {10.3334/CDIAC/atg.035},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Dec 31 23:00:00 EST 2008},
month = {Wed Dec 31 23:00:00 EST 2008}
}
