Scientific Results

Assimilation of stratospheric ozone from mipas in the chemical transport model strataq

Year: 2004

Authors: Grass B., Redaelli G., Visconti G., Cortesi U., Bianchini G., Castelli E.

Autors Affiliation: Universit√† dell\’Aquila, via Vetoio, Coppito, 67010 L\’Aquila, Italy; Istituto di Fisica Applicata Nello Carrara (IFAC-CNR), Firenze, Italy; Istituto Per le Scienze Della Atmosfera e del Clima (ISAC-CNR), Bologna, Italy

Abstract: We use a sequential assimilation approach to assimilate ozone MIPAS profiles into the STRATAQ chemical transport model of the stratosphere. The numerical code uses parameterizations and simplifications allowing assimilation of sparse observations and the simultaneous evaluation of analysis errors. The CTM used is a high resolution three dimensional model which includes a detailed chemical package and is driven by UKMO analysis. Two weeks of MIPAS ozone measurements are assimilated during October 2002, and results validated using data from the SAFIRE-A instrument which is part of the M-55 Geophysica platform operated during the APE-ENVISAT airborne validation campaign.

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KeyWords: Approximation theory; Geophysics; Kalman filtering; Meteorology; Ozone; Partial pressure; Photodissociation; Upper atmosphere; Water, Chemical transport; Delta-Eddington approximation; Error covariance; Van Leer transport, Atmospherics
DOI: 10000000000

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