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Assimilation of satellite-based aerosol measurements in a chemical transport model using aerosol component information

Martynenko, Dmytro and Holzer-Popp, Thomas and Schroedter-Homscheidt, Marion (2009) Assimilation of satellite-based aerosol measurements in a chemical transport model using aerosol component information. In: Proceedings 19th ESA Symposium on European Rocket & Balloon Programmes and Related Research. 19th ESA Symposium on European Rocket & Balloon Programmes and Related Research, Bad Reichenhall, Germany.

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Abstract

Aerosol monitoring is of growing interest in atmospheric physics and chemistry research area due to the impact of aerosol particle concentration on human health and the global climate. The key question of this paper is how the assimilation of satellite atmospheric aerosol observations improves the capability of a chemical transport model in reproducing the distribution of tropospheric particles. The study is carried out using the Model for Atmospheric Transport and Chemistry (MATCH). Synergetic Aerosol Retrieval (SYNAER) observational and model MATCH data can be coupled by means of data assimilation. MetOp-SYNAER measurements are able to distinguish between different aerosol components such as water-soluble, soot, sea salt and long-range transported mineral aerosols. Therefore, a component-wise assimilation approach is under development. During the assimilation procedure, the final analysis is highly dependent on the specification of the relative weights to both model and satellite source of information through the error covariance matrices. Since observation and background error covariance matrices are not perfectly known, a large potential for improvements of the analyses is offered by methods allowing their constructing and tuning. In this study, the method proposed by Desroziers and Ivanov [4] is used to tune background and observational error statistics of the 3D-Var assimilation procedure.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Assimilation of satellite-based aerosol measurements in a chemical transport model using aerosol component information
Authors:
AuthorsInstitution or Email of Authors
Martynenko, Dmytrodmytro.martynenko@dlr.de
Holzer-Popp, Thomasthomas.holzer-popp@dlr.de
Schroedter-Homscheidt, Marionmarion.schroedter-homscheidt@dlr.de
Date:June 2009
Journal or Publication Title:Proceedings 19th ESA Symposium on European Rocket & Balloon Programmes and Related Research
Refereed publication:No
Status:Published
Keywords:aerosol, assimilation, information content
Event Title:19th ESA Symposium on European Rocket & Balloon Programmes and Related Research
Event Location:Bad Reichenhall, Germany
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Datenprodukte für Klima- und Atmosphärenanwendungen (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Climate and Atmospheric Products
Deposited By: Dmytro Martynenko
Deposited On:16 Nov 2009 10:49
Last Modified:01 May 2013 20:44

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