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 Initial Results from the Total Carbon Column Observing Network

The Fate of Fossil-Fuel Emissions

By Rebecca Washenfelder


The Total Carbon Column Observing Network is a new network of ground-based solar observatories, dedicated to column measurements of greenhouse gases. We present CO2 column abundances observed in Park Falls, Wisconsin and Lauder, New Zealand during May 2004 – June 2005. In Park Falls, Wisconsin, the peak-to-peak variation of column-average CO2 is approximately 13 ppmv. In Lauder, New Zealand, the peak-to-peak variation of column-average CO2 is approximately 4 ppmv. Assuming a secular trend of 2 ppmv yr-1, we infer a peak-to-peak seasonal amplitude of 11 ppmv and 2 ppmv for Park Falls and Lauder respectively. These values are higher than model predictions by Olsen and Randerson [2003].

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A 50 Year Record of Atmospheric CO2 and Its Relation to Fossil Fuel Emissions


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The 7th International CO2 Conference

The Omni Interlocken Resort
September 25th - 30th
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