Tracer–tracer relation in the Arctic stratosphere using fuzzy logic

Abstract

Potential of finding a robust tracer–tracer relation using an approach based on fuzzy logic in the Arctic stratosphere using satellite observations of O3 and N2O has been demonstrated. Using this tracer–tracer relation, O3 is predicted in terms of N2O, latitude, longitude, altitude and day of the year. The model for O3 based on this approach has been validated with independent observations and has been found to be superior to those based on regression. This method has the potential to generate long time series of chemical species data from different satellite sensors in a self-consistent manner. These data have use in model evaluations and data assimilation.

Keywords

• stratosphere
• arctic
• trace gases
• tracer relation
• fuzzy logic