EVALUATION OF INVERSION ALGORITHM SENSITIVITY IN STRATOSPHERIC OZONE DIAL PROFILE

ORTE, FACUNDO; WOLFRAM, ELIAN; SALVADOR, JACOBO; D´ELÍA, RAÚL; QUEL, EDUARDO

Revista Boliviana de Física

UMSA

Año: 2011 vol. 20 p. 19 - 20

1562-3823

The DIAL system belonging to Observatorio Atmosférico de la Patagonia Austral, Río Gallegos, Argentina, has been included in the NDACC since December 2008. One caveat of large networks such as NDACC is the difficulty to report information of similar nature consistently from one research group (or instrument) to another. The inversion algorithm used in the stratospheric ozone DIAL measurements involves different source of systematic and statistic errors. Due to the rapid decrease of the signal-to-noise ratio in the high stratosphere, it is necessary to degrade the vertical resolution of the measurement in order to limit the statistical error at this altitude range, to reasonable values. The final statistical error on the measurement is the result of a compromise between the experimental system characteristics such as the duration of the measurement and the final vertical resolution. The aim of this study is to evaluate the sensitivity of the algorithm used in the retrieval procedure when we change the vertical smoothing filter used in it. We test this change through the comparison of different DIAL ozone profiles with the ozonesonde launched in Río Gallegos during 2011 intercomparison campaign.