Kiruna '96


Spectra of the stratospheric trace gases ClO, O3, N2O and HNO3 in the frequency range from 268 GHz to 279 GHz were measured from mid February to early April 1996 at Kiruna (67.84N, 20.41E, 425 m MSL), Sweden. By inverting these spectra using modified Tikhonov-Phillips- Regularization and Optimal Estimation Method profiles of the volume mixing ratios of the gases could be retrieved. In the following a selection of spectra and inverted profiles is presented. All error-bars in the profiles refer to errors caused by thermal noise.

ClO
O3
N2O
HNO3

Description of the system used in Kiruna in 1996
More about our activities at IRF (Swedish Institute of Space Physics, Kiruna)

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