MAX-DOAS measurements of atmospheric trace gases in Ny-Ålesund - Radiative transfer studies and their application
A new approach to derive tropospheric concentrations of some atmospheric trace gases from ground-based UV/vis measurements is described. The instrument, referred to as the MAX-DOAS, is based on the well-known UV/vis instruments, which use the sunlight scattered in the zenith sky as the light source...
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ftdoajarticles:oai:doaj.org/article:d72101fb483d4315bd028248d85da2e9 2023-05-15T17:48:23+02:00 MAX-DOAS measurements of atmospheric trace gases in Ny-Ålesund - Radiative transfer studies and their application F. Wittrock H. Oetjen A. Richter S. Fietkau T. Medeke A. Rozanov J. P. Burrows 2004-01-01T00:00:00Z https://doaj.org/article/d72101fb483d4315bd028248d85da2e9 EN eng Copernicus Publications http://www.atmos-chem-phys.net/4/955/2004/acp-4-955-2004.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/d72101fb483d4315bd028248d85da2e9 Atmospheric Chemistry and Physics, Vol 4, Iss 4, Pp 955-966 (2004) Physics QC1-999 Chemistry QD1-999 article 2004 ftdoajarticles 2022-12-31T11:29:18Z A new approach to derive tropospheric concentrations of some atmospheric trace gases from ground-based UV/vis measurements is described. The instrument, referred to as the MAX-DOAS, is based on the well-known UV/vis instruments, which use the sunlight scattered in the zenith sky as the light source and the method of Differential Optical Absorption Spectroscopy (DOAS) to derive column amounts of absorbers like ozone and nitrogen dioxide. Substantial enhancements have been applied to this standard setup to use different lines of sight near to the horizon as additional light sources (MAX - multi axis). Results from measurements at Ny-Ålesund (79° N, 12° E) are presented and interpreted with the full-spherical radiative transfer model SCIATRAN. In particular, measurements of the oxygen dimer O 4 which has a known column and vertical distribution in the atmosphere are used to evaluate the sensitivity of the retrieval to parameters such as multiple scattering, solar azimuth, surface albedo and refraction in the atmosphere and also to validate the radiative transfer model. As a first application, measurements of NO 2 emissions from a ship lying in Ny-Ålesund harbour are presented. The results of this study demonstrate the feasibility of long term UV/vis multi axis measurement that can be used to derive not only column amounts of different trace gases but also some information on the vertical location of these absorbers. Article in Journal/Newspaper Ny Ålesund Ny-Ålesund Directory of Open Access Journals: DOAJ Articles Ny-Ålesund |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 F. Wittrock H. Oetjen A. Richter S. Fietkau T. Medeke A. Rozanov J. P. Burrows MAX-DOAS measurements of atmospheric trace gases in Ny-Ålesund - Radiative transfer studies and their application |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
A new approach to derive tropospheric concentrations of some atmospheric trace gases from ground-based UV/vis measurements is described. The instrument, referred to as the MAX-DOAS, is based on the well-known UV/vis instruments, which use the sunlight scattered in the zenith sky as the light source and the method of Differential Optical Absorption Spectroscopy (DOAS) to derive column amounts of absorbers like ozone and nitrogen dioxide. Substantial enhancements have been applied to this standard setup to use different lines of sight near to the horizon as additional light sources (MAX - multi axis). Results from measurements at Ny-Ålesund (79° N, 12° E) are presented and interpreted with the full-spherical radiative transfer model SCIATRAN. In particular, measurements of the oxygen dimer O 4 which has a known column and vertical distribution in the atmosphere are used to evaluate the sensitivity of the retrieval to parameters such as multiple scattering, solar azimuth, surface albedo and refraction in the atmosphere and also to validate the radiative transfer model. As a first application, measurements of NO 2 emissions from a ship lying in Ny-Ålesund harbour are presented. The results of this study demonstrate the feasibility of long term UV/vis multi axis measurement that can be used to derive not only column amounts of different trace gases but also some information on the vertical location of these absorbers. |
format |
Article in Journal/Newspaper |
author |
F. Wittrock H. Oetjen A. Richter S. Fietkau T. Medeke A. Rozanov J. P. Burrows |
author_facet |
F. Wittrock H. Oetjen A. Richter S. Fietkau T. Medeke A. Rozanov J. P. Burrows |
author_sort |
F. Wittrock |
title |
MAX-DOAS measurements of atmospheric trace gases in Ny-Ålesund - Radiative transfer studies and their application |
title_short |
MAX-DOAS measurements of atmospheric trace gases in Ny-Ålesund - Radiative transfer studies and their application |
title_full |
MAX-DOAS measurements of atmospheric trace gases in Ny-Ålesund - Radiative transfer studies and their application |
title_fullStr |
MAX-DOAS measurements of atmospheric trace gases in Ny-Ålesund - Radiative transfer studies and their application |
title_full_unstemmed |
MAX-DOAS measurements of atmospheric trace gases in Ny-Ålesund - Radiative transfer studies and their application |
title_sort |
max-doas measurements of atmospheric trace gases in ny-ålesund - radiative transfer studies and their application |
publisher |
Copernicus Publications |
publishDate |
2004 |
url |
https://doaj.org/article/d72101fb483d4315bd028248d85da2e9 |
geographic |
Ny-Ålesund |
geographic_facet |
Ny-Ålesund |
genre |
Ny Ålesund Ny-Ålesund |
genre_facet |
Ny Ålesund Ny-Ålesund |
op_source |
Atmospheric Chemistry and Physics, Vol 4, Iss 4, Pp 955-966 (2004) |
op_relation |
http://www.atmos-chem-phys.net/4/955/2004/acp-4-955-2004.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/d72101fb483d4315bd028248d85da2e9 |
_version_ |
1766154269774315520 |