학술논문

Combined optical and microwave remote sensing measurements of the stratosphere from a balloon platform: improving our understanding of ozone photochemistry
Document Type
Conference
Source
Conference Proceedings Second Topical Symposium on Combined Optical-Microwave Earth and Atmosphere Sensing Combined optical-microwave Earth and atmosphere sensing Combined Optical-Microwave Earth and Atmosphere Sensing, 1995. Conference Proceedings., Second Topical Symposium on. :154-156 1995
Subject
Geoscience
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Components, Circuits, Devices and Systems
Optical sensors
Remote sensing
Microwave measurements
Photochemistry
Production
Terrestrial atmosphere
Testing
Chemistry
Predictive models
Loss measurement
Language
Abstract
Combined infrared and microwave remote sensing measurements of the stratosphere are combined to test several aspects of a constrained photochemical model. The authors find that a model with conventional chemistry only is unable to reproduce the observed abundance of ClO and HOCl relative to HCl, while results from a model which includes 10% production of HCl from the reaction of OH and ClO are in good agreement with the observations. The modified model predicts that the rates of production and loss of ozone are in balance at altitudes where the photochemical lifetimes are short compared to the characteristic transport time (30-40 km), in agreement with the rates calculated directly from the authors' measurements of HO/sub 2/, OH, NO/sub 2/, O/sub 3/, and ClO. The modified model also shows that for the balloon flight analyzed halogen-catalyzed ozone loss plays a lesser role than previously believed.ETX