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Improvement of Total and Tropospheric NO2 Column Retrieval for GOME-2

Liu, Song and Valks, Pieter and Pinardi, Gaia and De Smedt, Isabelle and Yu, Huan and Beirle, Steffen (2016) Improvement of Total and Tropospheric NO2 Column Retrieval for GOME-2. In: Geophysical Research Abstracts. EGU 2016, 17–22 April 2016, Vienna, Austria.

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Official URL: http://meetingorganizer.copernicus.org/EGU2016/EGU2016-5983.pdf

Abstract

This contribution focuses on the development and refinement of novel scientific algorithms for the retrieval of total and tropospheric nitrogen dioxide (NO2) columns for the GOME-2 satellite instrument. NO2 plays significant roles in atmospheric chemistry. It strongly related to ozone destruction in the stratosphere, and is regarded as an important air pollutant and ozone precursor in the troposphere. Total NO2 columns from GOME-2 are retrieved with the Differential Optical Absorption Spectroscopy (DOAS) method using the large 425-497 nm wavelength fitting window in order to increase the signal to noise ratio. The tropospheric NO2 column is derived using an improved Stratospheric-Tropospheric separation (STS) algorithm, followed by an air mass factor (AMF) conversion calculated with the LIDORT model. For the calculation of the tropospheric AMF, improved GOME-2 cloud parameters are used and a new surface albedo (LER) climatology based on GOME-2 observations for 2007-2013 is applied. We present the improvements in the NO2 retrieval algorithm, and we show examples of air quality applications with GOME-2 NO2 data.

Item URL in elib:https://elib.dlr.de/110780/
Document Type:Conference or Workshop Item (Poster)
Additional Information:© Author(s) 2016. CC Attribution 3.0 License.
Title:Improvement of Total and Tropospheric NO2 Column Retrieval for GOME-2
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Liu, SongSong.Liu (at) dlr.deUNSPECIFIED
Valks, PieterPieter.Valks (at) dlr.deUNSPECIFIED
Pinardi, Gaiabira-iasbUNSPECIFIED
De Smedt, Isabellebira-iasbUNSPECIFIED
Yu, Huanbira-iasbUNSPECIFIED
Beirle, Steffenmpi for chemistry, mainzUNSPECIFIED
Date:2016
Journal or Publication Title:Geophysical Research Abstracts
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:GOME-2, NO2, retrieval, algorithm improvement
Event Title:EGU 2016
Event Location:Vienna, Austria
Event Type:international Conference
Event Dates:17–22 April 2016
Organizer:EGU
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):Vorhaben Spectroscopic Methods in Remote Sensing
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Liu, Song
Deposited On:27 Jan 2017 11:09
Last Modified:31 Jul 2019 20:08

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