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Evaluation of a Method for Converting SAGE Extinction Coefficients to Backscatter Coefficient for Intercomparison with LIDAR Observations

Abstract : Aerosol backscatter coefficients were calculated using multi-wavelength aerosol extinction products from the SAGE II and SAGE III/ISS instruments. The conversion methodology is presented followed by an evaluation of the conversion algorithm's robustness. The SAGE-based backscatter products were compared to backscatter coefficients derived from ground-based lidar at three sites (Table Mountain Facility, Mauna Loa, and Observatoire de Haute-Provence). This evaluation includes the major eruption of Mt. Pinatubo in 1991 followed by the atmospherically quiescent period beginning in the late nineties. Recommendations are made regarding the use of this method for evaluation of aerosol extinction profiles collected using the occultation method.
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https://hal-insu.archives-ouvertes.fr/insu-02498991
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Submitted on : Wednesday, March 4, 2020 - 8:42:06 PM
Last modification on : Thursday, March 5, 2020 - 1:35:18 AM

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Travis N. Knepp, Larry Thomason, Marilee Roell, Robert Damadeo, Kevin Leavor, et al.. Evaluation of a Method for Converting SAGE Extinction Coefficients to Backscatter Coefficient for Intercomparison with LIDAR Observations. Atmospheric Measurement Techniques Discussions, 2020, pp.(Under Review). ⟨10.5194/amt-2020-60⟩. ⟨insu-02498991⟩

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