Evaluation of Antarctic Ozone Profiles derived from OMPS-LP by using Balloon-borne Ozonesondes

Edgardo Sepulveda ,Juan S Crespo,Rigel Kivi,Jaime Pìzarro ,Félix Zamorano ,Alejandro Aníbal Godoy ,Sarah Féron ,Günther Seckmeyer ,José Jorquera ,Ricardo Zanmar Sánchez ,Raúl R Cordero ,Juan Manuel Carrera ,Alessandro Damiani,Braulio Valdevenito,Julien Jumelet,Sergio Cabrera,Jorge Carrasco,Margarita Yela,Alberto Redondas,Penny M Rowe

doi:10.1038/s41598-021-81954-6

Abstract

Predicting radiative forcing due to Antarctic stratospheric ozone recovery requires detecting changes in the ozone vertical distribution. In this endeavor, the Limb Profiler of the Ozone Mapping and Profiler Suite (OMPS-LP), aboard the Suomi NPP satellite, has played a key role providing ozone profiles over Antarctica since 2011. Here, we compare ozone profiles derived from OMPS-LP data (version 2.5 algorithm) with balloon-borne ozonesondes launched from 8 Antarctic stations over the period 2012–2020. Comparisons focus on the layer from 12.5 to 27.5 km and include ozone profiles retrieved during the Sudden Stratospheric Warming (SSW) event registered in Spring 2019. We found that, over the period December-January–February-March, the root mean square error (RMSE) tends to be larger (about 20%) in the lower stratosphere (12.5–17.5 km) and smaller (about 10%) within higher layers (17.5–27.5 km). During the ozone hole season (September–October–November), RMSE values rise up to 40% within the layer from 12.5 to 22 km. Nevertheless, relative to balloon-borne measurements, the mean bias error of OMPS-derived Antarctic ozone profiles is generally lower than 0.3 ppmv, regardless of the season.

Highlights

We found that most of the profiles exhibit a good agreement within the layer from 22 to 27.5 km, within which MBE values are generally lower than ± 10%
We found that relative to balloon-borne data, MBE values of OMPS-derived Antarctic ozone profiles are generally less than 0.3 ppmv
We found that, during DJFM, RMSE values tend to be larger in the lower stratosphere (12.5–17.5 km) and smaller within higher layers (17.5–27.5 km)

Summary

Introduction

We found that most of the profiles exhibit a good agreement within the layer from 22 to 27.5 km, within which MBE values are generally lower than ± 10% (except in the case of the Amundsen-Scott Station). In the same range (± 10%) as at higher altitudes during the ozone hole season (SON), but MBE values become predominantly negative (up to about − 20%) during DJFM (i.e. when the ozone concentration reaches higher values).

Results

Conclusion