Speaker
Description
The Atmospheric Limb Tracker for the Investigation of the Upcoming Stratosphere (ALTIUS) is a high spatial resolution spectral imager designed to measure ozone and other trace species in the stratosphere. A stratospheric aerosol retrieval is included to provide input for the ozone retrieval, and an official stratospheric aerosol secondary product is expected. Here we describe the stratospheric aerosol retrieval algorithm used in bright limb mode, planned modifications for the official secondary product, and expected performance . A standard optimal estimation scheme is used with Tikhonov regularization to constrain the profile. The stratospheric aerosol secondary product retrieval will be based upon the OSIRIS v7 multi-wavelength aerosol retrieval (Rieger, et al. 2019, https://doi.org/10.1029/2018JD029897). We also present the current status of the performance of the algorithm using simulated retrievals with a full instrument model, as well as optimizations that are being made to improve the convergence of the algorithm
