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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/11798

Title: Current retrieval and inter-comparisons results of Sciamachy Nighttime Nox
Authors: Amekudzi, L. K.
Bramstedt, K.
Bracher, A.
Rozanov, A.
Bovensmann, H.
Burrows, J. P.
Keywords: stratospheric NOx
NO2
NO3
validation
SCIAMACHY
lunar occultation
Issue Date: 2014
Publisher: Institute of Environmental Physics and Remote sensing
Citation: Institute of Environmental Physics and Remote sensing (IUP/Ife), University of Bremen, Otto-Hahn-Allee 1, 28334
Abstract: Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) performs lunar occultation measurements over the high southern latitude (50o S–90o S). Using the global spectra fitting method by the differential optical depth approach and the optimal estimation method, vertical profiles of nighttime NOx (NO2 and NO3) are retrieved. The quality of the retrieved NOx products are verified by comparing SCIAMACHY nighttime NO2 result with other satellite instruments (HALOE and SAGE II) and NO3 results with a simple chemical model outputs. Very promising results are obtained. The relative mean differences (rmd) of SCIAMACHY-HALOE comparisons are within -16 % to +3 % and the standard deviations (rms) within 4–16 % between 25–38 km. The rmd and rms for SCIAMACHYSAGE II comparisons are within -9 % to +7 % and 10– 17 % between 22–39 km. The retrieved NO3 are in very good agreement with the model calculations between 16 to 38 km within accuracy of 25 %.
Description: An article published by Institute of Environmental Physics and Remote sensing (IUP/Ife)
URI: http://hdl.handle.net/123456789/11798
Appears in Collections:College of Science

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