FINAL REPORT: A Study of the Abundance and 13C/12C Ratio of Atmospheric Carbon Dioxide to Advance the Scientific Understanding of Terrestrial Processes Regulating the GCC

doi:10.2172/946471

Title: FINAL REPORT: A Study of the Abundance and 13C/12C Ratio of Atmospheric Carbon Dioxide to Advance the Scientific Understanding of Terrestrial Processes Regulating the GCC

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Abstract

The main objective of this project was to continue research to develop carbon cycle relationships related to the land biosphere based on remote measurements of atmospheric CO2 concentration and its isotopic composition. The project continued time-series observations of atmospheric carbon dioxide and isotopic composition begun by Charles D. Keeling at remote sites, including Mauna Loa, the South Pole, and eight other sites. The program also included the development of methods for measuring radiocarbon content in the collected CO2 samples and carrying out radiocarbon measurements in collaboration with Tom Guilderson of Lawrence Berkeley National Laboratory (LLNL). The radiocarbon measurements can provide complementary information on carbon exchange rates with the land and oceans and emissions from fossil-fuel burning. Using models of varying complexity, the concentration and isotopic measurements were used to establish estimates of the spatial and temporal variations in the net CO2 exchange with the atmosphere, the storage of carbon in the land and oceans, and variable isotopic discrimination of land plants.

Authors:: Keeling, R F; Piper, S C

Publication Date:: 2008-12-23

Research Org.:: University of California, San Diego/ Scripps Institution of Oceanography

Sponsoring Org.:: USDOE Office of Biological and Environmental Research

OSTI Identifier:: 946471

Report Number(s):: DOE/ER/63898-1
TRN: US201003%%688

DOE Contract Number:: FG02-04ER63898

Resource Type:: Technical Report

Country of Publication:: United States

Language:: English

Subject:: 54 ENVIRONMENTAL SCIENCES; ABUNDANCE; BIOSPHERE; CARBON; CARBON CYCLE; CARBON DIOXIDE; FOREIGN EXCHANGE RATE; LAWRENCE LIVERMORE NATIONAL LABORATORY; STORAGE; global carbon cycle; atmospheric CO2, 13C/12C, C14; terrestrial processes

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                    Keeling, R F, and Piper, S C. FINAL REPORT: A Study of the Abundance and 13C/12C Ratio of Atmospheric Carbon Dioxide to Advance the Scientific Understanding of Terrestrial Processes Regulating the GCC.  United States: N. p., 2008. 
        Web.  doi:10.2172/946471.

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                    Keeling, R F, & Piper, S C. FINAL REPORT: A Study of the Abundance and 13C/12C Ratio of Atmospheric Carbon Dioxide to Advance the Scientific Understanding of Terrestrial Processes Regulating the GCC.  United States.  doi:10.2172/946471.

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                    Keeling, R F, and Piper, S C. Tue .  
        "FINAL REPORT: A Study of the Abundance and 13C/12C Ratio of Atmospheric Carbon Dioxide to Advance the Scientific Understanding of Terrestrial Processes Regulating the GCC".  United States.  doi:10.2172/946471.  https://www.osti.gov/servlets/purl/946471.

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@article{osti_946471,

  title        = {FINAL REPORT: A Study of the Abundance and 13C/12C Ratio of Atmospheric Carbon Dioxide to Advance the Scientific Understanding of Terrestrial Processes Regulating the GCC},

  author       = {Keeling, R F and Piper, S C},

  abstractNote = {The main objective of this project was to continue research to develop carbon cycle relationships related to the land biosphere based on remote measurements of atmospheric CO2 concentration and its isotopic composition. The project continued time-series observations of atmospheric carbon dioxide and isotopic composition begun by Charles D. Keeling at remote sites, including Mauna Loa, the South Pole, and eight other sites. The program also included the development of methods for measuring radiocarbon content in the collected CO2 samples and carrying out radiocarbon measurements in collaboration with Tom Guilderson of Lawrence Berkeley National Laboratory (LLNL). The radiocarbon measurements can provide complementary information on carbon exchange rates with the land and oceans and emissions from fossil-fuel burning. Using models of varying complexity, the concentration and isotopic measurements were used to establish estimates of the spatial and temporal variations in the net CO2 exchange with the atmosphere, the storage of carbon in the land and oceans, and variable isotopic discrimination of land plants.},

  doi          = {10.2172/946471},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2008},

  month        = {12}

}

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DOI: 10.2172/946471

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