Dynamically controlled ozone decline in the tropical mid-stratosphere observed by SCIAMACHY

摘要

Despite the recently reported beginning of a recovery in global stratospheric ozone (O-3), an unexpected O-3 decline in the tropical mid-stratosphere (around 30-35 km altitude) was observed in satellite measurements during the first decade of the 21st century. We use SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) measurements for the period 2004-2012 to confirm the significant O-3 decline. The SCIAMACHY observations show that the decrease in O-3 is accompanied by an increase in NO2.