The GOMOS processing chain and products

Author

Popescu, A. ; D´Andon, O. Fanton ; Bertaux, J.L. ; Kyrölä, E. ; Hauchecorne, A. ; Mangin, A. ; Dalaudier, F. ; Leppelmeier, G. ; Fussen, D. ; Langen, J.

Author_Institution

Eur. Space Res. & Technol. Centre, Noordwijk, Netherlands

Volume

3

fYear

1999

fDate

1999

Firstpage

1697

Abstract

ESA´s ENVISAT in year 2000 and will measure ozone with unprecedented long term accuracy and vertical resolution. GOMOS observes stellar occultations, and determines ozone, NO₂, NO₃, aerosol, O₂, H₂O and possibly OClO concentrations from the ratio of two stellar spectra, one outside the atmosphere, one through the atmosphere. The first step of the processing, Level 1b, consists of various instrumental corrections to obtain the measured atmospheric spectral transmission as a function of altitude/geolocation. The second step (Level 2) consists of one spectral inversion for each line of sight (retrieval of integrated line densities of various constituents) and one vertical inversion for the whole occultation. The analysis of two fast photometers (1 kHz) data will produce a high resolution profile for the temperature profile. Higher data products will be constructed with the sequential assimilation of GOMOS data into a CTM model

Keywords

air pollution measurement; atmospheric techniques; geophysical signal processing; remote sensing; 15 to 90 km; ENVISAT; GOMOS; H₂O; IR; NO₂; NO₃; O₂; O₃; OClO; UV; air pollution; chemical composition; data processing chain; data products; infrared; limb profiling; measurement technique; mesosphere; middle atmosphere; ozone; satellite remote sensing; stratosphere; ultraviolet; vertical profiling; visible; Absorption; Atmosphere; Atmospheric measurements; Atmospheric waves; Extraterrestrial measurements; Instruments; Motion measurement; Photometry; Space vehicles; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International

Conference_Location

Hamburg

Print_ISBN

0-7803-5207-6

Type

conf

DOI

10.1109/IGARSS.1999.772065

Filename

772065