Space-borne remote sensing of CO2 by IPDA lidar with heterodyne detection: random error estimation

G. G. Matvienko; A. Ya. Sukhanov

doi:10.1117/12.2205881

19 November 2015 Space-borne remote sensing of CO₂ by IPDA lidar with heterodyne detection: random error estimation

G. G. Matvienko, A. Ya. Sukhanov

Proceedings Volume 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics; 96804I (2015) https://doi.org/10.1117/12.2205881
Event: XXI International Symposium Atmospheric and Ocean Optics. Atmospheric Physics, 2015, Tomsk, Russian Federation

Abstract

Possibilities of measuring the CO₂ column concentration by spaceborne integrated path differential lidar (IPDA) signals in the near IR absorption bands are investigated. It is shown that coherent detection principles applied in the nearinfrared spectral region promise a high sensitivity for the measurement of the integrated dry air column mixing ratio of the CO₂. The simulations indicate that for CO₂ the target observational requirements (0.2%) for the relative random error can be met with telescope aperture 0.5 m, detector bandwidth 10 MHz, laser energy per impulse 0.3 mJ and averaging 7500 impulses. It should also be noted that heterodyne technique allows to significantly reduce laser power and receiver overall dimensions compared to direct detection.

Citation Download Citation

G. G. Matvienko and A. Ya. Sukhanov "Space-borne remote sensing of CO₂ by IPDA lidar with heterodyne detection: random error estimation", Proc. SPIE 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics, 96804I (19 November 2015); https://doi.org/10.1117/12.2205881

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