The measurement campaign at Kiruna (67.84°N, 20.41°E, 425 m MSL), Sweden, in 1998 lasted from 26 January to
03 April and spectra of the stratospheric
trace gases ClO, O3 and N2O
in the frequency range from 268 GHz to
279 GHz were measured.
The inversion was performed with modified Tikhonov-Phillips-Regularization and Optimal
Estimation Method. In the
following a selection of spectra and inverted profiles is presented.