17 Mar 2022
17 Mar 2022
Status: this preprint is currently under review for the journal ESSD.

Attenuated atmospheric backscatter profiles measured by the CO2 Sounder lidar in the 2017 ASCENDS/ABoVE airborne campaign

Xiaoli Sun1, Paul Thomas Kolbeck2, James Brice Abshire1,2, Stephan Randy Kawa1, and Jianping Mao1,2 Xiaoli Sun et al.
  • 1NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
  • 2University of Maryland, College Park, Maryland, 20742, USA

Abstract. A series of attenuated atmospheric backscatter profiles were measured at 1572 nm by the CO2 Sounder lidar during the eight flights of the 2017 ASCENDS/ABoVE (Active Sensing of CO2 Emission over Nights, Days, & Seasons mission, Arctic Boreal Vulnerability Experiment) airborne campaign. In addition to measuring the column average CO2 mixing ratio from the signals reflected by the ground, the CO2 Sounder lidar also recorded the height-resolved attenuated atmospheric backscatter profiles beneath the aircraft. We have recently processed these vertical profiles with a 15-m vertical spacing and 1-s integration time along the flight path (~200 m) for all the 2017 flights and have posted the results at NASA Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC) for Biogeochemical Dynamics (Sun et al., 2022), This paper describes the principle of these lidar backscatter profile measurements, their data processing, and estimated signal to noise ratio.

Xiaoli Sun et al.

Status: open (until 17 Jun 2022)

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  • RC1: 'Comment on essd-2022-59', Anonymous Referee #1, 27 Apr 2022 reply

Xiaoli Sun et al.

Data sets

ABoVE/ASCENDS: Atmospheric Backscattering Coefficient Profiles, 2017 Sun, X., P. T. Kolbeck, J. B. Abshire, S. R. Kawa, and J. Mao

Xiaoli Sun et al.


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Short summary
We describe the measurement and data processing of the atmospheric backscatter profile data by our CO2 Sounder lidar from the 2017 ASCENDS/ABoVE airborne campaign. It is an additional data set from the column average CO2 mixing ratio measurements from laser sounding. It not only helps to interpret the CO2 mixing ratio measurement but also give a stand alone data set for atmosphere backscattering study at 1572 nm wavelength.