Multiscale observations of CO2, 13CO2, and pollutants at Four Corners for emission verification and attribution.

ABSTRACT: There is a pressing need to verify air pollutant and greenhouse gas emissions from anthropogenic fossil energy sources to enforce current and future regulations. We demonstrate the feasibility of using simultaneous remote sensing observations of column abundances of CO2, CO, and NO2 to inform and verify emission inventories. We report, to our knowledge, the first ever simultaneous column enhancements in CO2 (3-10 ppm) and NO2 (1-3 Dobson Units), and evidence of δ(13)CO2 depletion in an urban region with two large coal-fired power plants with distinct scrubbing technologies that have resulted in ∆NOx/∆CO2 emission ratios that differ by a factor of two. Ground-based total atmospheric column trace gas abundances change synchronously and correlate well with simultaneous in situ point measureme

SUBMITTER: Lindenmaier R 

PROVIDER: S-EPMC4060651 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature