Validation of Aeolus Wind Product at Cruzeiro do Sul-Brazil

The Atmospheric Dynamics Mission ADM-Aeolus was successfully launched in August 2018 by the European Space Agency (ESA). ADM-Aeolus carries the Atmospheric LAser Doppler INstrument (ALADIN), the first space-borne Doppler Wind Lidar (DWL) that provides vertical profiles of horizontal line-of-sight (HLOS) winds on a global scale. Aeolus satellite overpasses Cruzeiro do Sul (7.35 S, 72.46 W) twice a week in two different orbits, the descending orbit at 10:42 UTC on Tuesdays and the ascending orbit at 23:04 UTC on Sundays. In this study, we focus on the descending orbit overpasses, and statistical validation of Aeolus L2B wind products has been performed with radiosondes launched daily at 12:00 UTC. The period from October 2018 to March 2023, including Aeolus baselines 2B11, 2B12, 2B13, 2B14, and 2B15, was analyzed, and Pearson correlation coefficients greater than 0.7 (0.8) were observed in Rayleigh-clear (Mie-cloudy) wind products.