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Mid-afternoon CO and CH 4 from NOAA Tall Tower Network Summer 2007

CO. CH 4. CH 4 , ppb. CO, ppb. Mid-afternoon CO and CH 4 from NOAA Tall Tower Network Summer 2007. TEXAS MAINE WISCONSIN COLORADO IOWA. WBI (West Branch, Iowa): Instrumentation was installed on the KWKB-TV tower in late June 2007. Samples agricultural ecosystems.

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Mid-afternoon CO and CH 4 from NOAA Tall Tower Network Summer 2007

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  1. CO CH4 CH4, ppb CO, ppb Mid-afternoon CO and CH4 from NOAA Tall Tower Network Summer 2007 TEXAS MAINE WISCONSIN COLORADO IOWA

  2. WBI (West Branch, Iowa): • Instrumentation was installed on the KWKB-TV tower in late June 2007. • Samples agricultural ecosystems. • Summertime CO2 levels in this region are among the lowest in North America due to strong uptake by corn and other crops. • We expect to see interannual variability in the CO2 seasonal cycle that is related to crop yields, which are carefully tracked. • For example, 2007 is expected to be a record corn crop, as demand has increased for production of biofuels. • Partner: University of Iowa (Charles Stanier)

  3. BAO (Erie, Colorado): • Located on the Boulder Atmospheric Observatory (BAO) tower, which has been operated by the ESRL Physical Sciences Division (PSD) since the 1970s. • Instrumentation for in situ monitoring of CO2 and CO was installed in April 2007. • Automated flask sampling equipment installed August 2007 • Targets urban and industrial sources of CO2 as well as upwind mountain ecosystems

  4. Tail pipe of North America Colm Sweeney, NOAA/ESRL Wade McGillis, Columbia University Pieter Tans, NOAA/ESRL

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