Glyoxal vertical columns from GOME-2 backscattered light measurements and comparisons with a global model
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TLDR
In this article, a two-step DOAS approach was used to calculate glyoxal vertical column densities from nadir backscattered radiances measured from 2007 to 2009 by the spaceborne GOME-2/METOP-A sensor.Abstract:
. Glyoxal vertical column densities have been retrieved from nadir backscattered radiances measured from 2007 to 2009 by the spaceborne GOME-2/METOP-A sensor. The retrieval algorithm is based on the DOAS technique and optimized settings have been used to determine glyoxal slant columns. The liquid water absorption is accounted for using a two-step DOAS approach, leading to a drastic improvement of the fit quality over remote clear water oceans. Air mass factors are calculated by means of look-up tables of weighting functions pre-calculated with the LIDORT v3.3 radiative transfer model and using a priori glyoxal vertical distributions provided by the IMAGESv2 chemical transport model. The total error estimate comprises random and systematic errors associated to the DOAS fit, the air mass factor calculation and the cloud correction. The highest glyoxal vertical column densities are mainly observed in continental tropical regions, while the mid-latitude columns strongly depend on the season with maximum values during warm months. An anthropogenic signature is also observed in highly populated regions of Asia. Comparisons with glyoxal columns simulated with IMAGESv2 in different regions of the world generally point to a missing glyoxal source, most probably of biogenic origin.read more
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Diurnal, seasonal and long-term variations of global formaldehyde columns inferred from combined OMI and GOME-2 observations
I. De Smedt,Trissevgeni Stavrakou,François Hendrick,Thomas Danckaert,T. Vlemmix,Gaia Pinardi,Nicolas Theys,Christophe Lerot,Clio Gielen,Corinne Vigouroux,Christian Hermans,Caroline Fayt,Pepijn Veefkind,Jean-François Müller,M. Van Roozendael +14 more
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An improved NO 2 retrieval for the GOME-2 satellite instrument
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Journal ArticleDOI
Ship-based detection of glyoxal over the remote tropical Pacific Ocean
TL;DR: The first detection of glyoxal (CHOCHO) over the tropical Pacific Ocean in the Marine Boundary Layer (MBL) was made by means of the University of Colorado Ship Multi-Axis Differential Optical Absorption Spectroscopy (CU SMAX-DOAS) instrument aboard the research vessel Ronald H. Brown as mentioned in this paper.
Journal ArticleDOI
Improved retrieval of global tropospheric formaldehyde columns from GOME-2/MetOp-A addressing noise reduction and instrumental degradation issues
I. De Smedt,M. Van Roozendael,Trissevgeni Stavrakou,Jean-François Müller,Christophe Lerot,Nicolas Theys,Pieter Valks,Nan Hao +7 more
TL;DR: In this article, the authors presented a new dataset of formaldehyde vertical columns retrieved from observations of GOME-2 on board the EUMETSAT MetOp-A platform between 2007 and 2011.
Journal ArticleDOI
Aircraft measurements of BrO, IO, glyoxal, NO 2 , H 2 O, O 2 –O 2 and aerosol extinction profiles in the tropics: comparison with aircraft-/ship-based in situ and lidar measurements
Rainer Volkamer,Rainer Volkamer,Sunil Baidar,Sunil Baidar,Teresa Campos,Sean Coburn,Sean Coburn,Joshua P. DiGangi,Joshua P. DiGangi,Barbara Dix,Edwin W. Eloranta,Theodore K. Koenig,Theodore K. Koenig,Bruce Morley,Ivan Ortega,Ivan Ortega,Bridget R. Pierce,Mike Reeves,R. Sinreich,Siyuan Wang,Siyuan Wang,Siyuan Wang,Mark A. Zondlo,P. Romashkin +23 more
TL;DR: In this paper, the results of two research flights (RF12, RF17) over the tropical Eastern Pacific Ocean (tEPO) as part of the "Tropical Ocean tRoposphere Exchange of Reactive halogens and Oxygenated hydrocarbons" (TORERO) project are presented.
References
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Mapping isoprene emissions over North America using formaldehyde column observations from space
Paul I. Palmer,Daniel J. Jacob,Arlene M. Fiore,Randall V. Martin,Kelly Chance,Thomas P. Kurosu +5 more
TL;DR: In this article, the GOME data were used to estimate isoprene emissions in North America and the U.S. EPA Biogenic Emissions Inventory System (BEIS2) inventory.
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A fast method for retrieval of cloud parameters using oxygen a band measurements from the Global Ozone Monitoring Experiment
TL;DR: In this article, an improved cloud retrieval scheme, called Fast Retrieval Scheme for Clouds from the Oxygen A band (FRESCO), makes use of reflectivities as measured by GOME inside and outside the oxygen A band.
Journal ArticleDOI
Glyoxal processing by aerosol multiphase chemistry: towards a kinetic modeling framework of secondary organic aerosol formation in aqueous particles
TL;DR: In this paper, the authors present a modeling framework based on laboratory data to describe the kinetics of glyoxal reactions that form secondary organic aerosol (SOA) in aqueous aerosol particles.
Journal ArticleDOI
A database of spectral surface reflectivity in the range 335-772 nm derived from 5.5 years of GOME observations
TL;DR: In this paper, a global database of Lambert-equivalent reflectivity (LER) of the Earth's surface has been constructed by analyzing observations of the reflectivity at the top of the atmosphere made by the Global Ozone Monitoring Experiment (GOME).
Journal ArticleDOI
Air mass factor formulation for spectroscopic measurements from satellites: Application to formaldehyde retrievals from the Global Ozone Monitoring Experiment
Paul I. Palmer,Daniel J. Jacob,Kelly Chance,Randall V. Martin,Robert Spurr,Thomas P. Kurosu,Isabelle Bey,Robert M. Yantosca,Arlene M. Fiore,Qinbin Li +9 more
TL;DR: In this paper, a new formulation for the air mass factor (AMF) was proposed to convert slant column measurements of optically thin atmospheric species from space into total vertical columns.