Upper Midwest Tower CO2 Concentrations from 2007-2009 NACP Campaign

Seven instrumented communication towers in the U.S. Upper Midwest provide high-precision atmospheric CO2 data. Hourly and daily daytime average CO2 dry mole fractions were collected from January 2007 through December 2009 for the North American Carbon Program Mid-Continent Intensive campaign. The dataset includes measurements from five Ring 2 towers, a Missouri Ozarks AmeriFlux site, and the Rosemount tall tower observatory.

Use Cases

• Validating regional atmospheric transport models using hourly CO2 dry mole fraction time series.
• Analyzing diurnal and seasonal CO2 cycles across different land cover types in the Midwest.
• Studying spatial gradients of atmospheric CO2 using data from seven distinct tower locations.
• Assessing data quality for carbon flux inversion studies using the provided quality flags.
• Supporting the North American Carbon Program's intensive campaign objectives for the Mid-Continent region.

Strengths

• Data is described as high precision and high accuracy, collected for a specific scientific campaign (NACP MCI).
• Includes both hourly averages and calculated daily daytime averages for five sites, providing temporal granularity.
• Covers a multi-year time range from 2007 to 2009 across a network of seven distinct measurement towers.

Limitations

• Specific row counts, file sizes, and detailed column names are not provided by any source.
• Sources conflict on the last updated date: one lists 2009-12-31, while others list 2026-03-12, suggesting a metadata discrepancy.

Provenance

Source

Measurements from towers operated by PSU, ORNL, and the University of Minnesota's Rosemount Research and Outreach Center, under the NACP MCI campaign.

Collection Method

Atmospheric CO2 dry mole fractions measured at different above-ground levels on instrumented towers and averaged.

Time Range

2007-01 to 2009-12

Freshness

2026-03 12 23:33:30.201646

Geography

U.S. Upper Midwest (Iowa, Wisconsin, Illinois, Nebraska, Minnesota, Missouri)