Measurement of HO2 and other trace gases in the stratosphere using a high resolution far-infrared spectrometer

This report covers the time period 1 Jul. to 31 Dec. 1993. There were no balloon or airplane flights during this reporting period, instead we concentrated on analyzing our existing data. This was facilitated by a recently completed program of enhancements made in our data reduction software. We are using our data sets to examine the changes in stratospheric chemistry over a variety of time scales. Ongoing projects include investigating the diurnal variation of OH, HO2, and H2O2 and exploring their relationships with other simultaneously measured species; measuring long term trends in HF and HCl; and looking for changes caused by the June 1991 Pinatubo eruption. We are also continuing to analyze the large set of data collected during the AASE 2

Measurement of HO2 and other trace gases in the stratosphere using a high resolution far-infrared spectrometer

This report covers the time period 1 January 1994 to 31 December 1994. During this reporting period we had our fourth Upper Atmosphere Research Satellite (UARS) correlative balloon flight; the data from this flight have been reduced and submitted to the UARS CDHF. We have spent most of the past year analyzing data from this and past flights. For example, using data from our September 1989 balloon flight we have demonstrated for the first time ever that the rates of production and loss of ozone are in balance in the upper stratosphere. As part of this analysis, we have completed the most detailed study to date of radical partitioning throughout the stratosphere. We have also produced the first measurement of HBr and HOBr mixing ratio profiles over a full diurnal cycle

SIUBEX (Submillimeter Infrared Ultraviolet Balloon Experiment) project. Report activity, May 1992 - September 1992 Italian Groups

SIGLEITItal