Anthropogenic emissions of CO<sub>2</sub> over the past century has altered significantly the global carbon cycle. Our understanding of the long-term climatic effects of these emissions would be improved greatly by satellite-based remote sounding of CO<sub>2</sub>. We provide an initial analysis of a simple satellite-based filter radiometer tuned to the spectral region around 6300 cm<sup>−1</sup> (≈1.6 μm) to measure the atmospheric column of CO<sub>2</sub> from space. We find that such an instrument has potential and that the sensitivity would be limited by our knowledge of the tropospheric temperature and water-vapor profiles.
© 2001 Optical Society of America
(010.1120) Atmospheric and oceanic optics : Air pollution monitoring
(010.1280) Atmospheric and oceanic optics : Atmospheric composition
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(280.0280) Remote sensing and sensors : Remote sensing and sensors
Boyd T. Tolton and Dany Plouffe, "Sensitivity of Radiometric Measurements of the Atmospheric CO2 Column from Space," Appl. Opt. 40, 1305-1313 (2001)