The use of atmospheric Inversion on Multi Angle polarization data from Ground, Aircraft and Satellite
Abstract
The inversion of multi-angle, and multi-spectral polarization data provides a great tool for the retrieval microphysical properties of diverse aerosol types. The technique is very general and can match many different measurement concepts from localized in-situ measurements to remote sensing observations from space.
Our team has developed multiple measurement concepts and instruments that uses atmospheric remote sensing inversion as a primary tool to retrieve aerosol microphysical information from multiple platforms including in situ and remote sensing sensors. Our in-situ sensors include imaging nephelometers from the ground and from aircraft with hyper-angular and high angular resolution, discrete polar nephelometers with a more limited angular distribution, and integrating nephelometers measuring in the backscattering and forward scattering regions. On the remote sensing side, we have used the airborne AirHARP polarimeter on the NASA ER2 and UC12 aircrafts, and from space we had the Hyper-Angular Rainbow Polarimeter (HARP) CubeSat collecting data for 2 years. In the near future we have the upcoming HARP2 instrument to be launched on the NASA PACE spacecraft. In this talk we will show the application of the Generalized Retrieval of Aerosol and Surface Properties (GRASP) inversion algorithm to a multitude of measurements from the platforms described above, demonstrating their synergy and applicability to laboratory measurements, field campaigns, ground networks, aircraft and satellite. Specific results include laboratory measurements with different aerosols types, results from past field campaigns, remote sensing results from HARP CubeSat, and discussion on future measurements to be performed with the HARP2 sensor on the NASA PACE platform. In particular, we will show results from two years of HARP CubeSat data collected around the globe, including aerosol retrievals over dust and biomass burning smoke. Saharan dust has been measured with HARP near the source and arriving in the Americas after long range transport. In situ results will include aerosols from multiple sources including urban pollution, biogenic and biomass burning aerosols. In all cases, GRASP retrievals provided results on aerosol optical depth, particle size, non-sphericity, and aerosol refractive indices.- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2022
- Bibcode:
- 2022AGUFM.A55B..01M