Fast NO<sub>2</sub> retrievals from Odin-OSIRIS limb scatter measurements
The feasibility of retrieving vertical profiles of NO<sub>2</sub> from space-based measurements of limb scattered sunlight has been demonstrated using several different data sets since the 1980's. The NO<sub>2</sub> data product routinely retrieved from measurements made...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2011-05-01
|
| Series: | Atmospheric Measurement Techniques |
| Online Access: | http://www.atmos-meas-tech.net/4/965/2011/amt-4-965-2011.pdf |
| _version_ | 1828487984409739264 |
|---|---|
| author | E. J. Llewellyn A. F. Bathgate S. Brohede C. A. McLinden C. E. Sioris A. E. Bourassa D. A. Degenstein |
| author_facet | E. J. Llewellyn A. F. Bathgate S. Brohede C. A. McLinden C. E. Sioris A. E. Bourassa D. A. Degenstein |
| author_sort | E. J. Llewellyn |
| collection | DOAJ |
| description | The feasibility of retrieving vertical profiles of NO<sub>2</sub> from space-based measurements of limb scattered sunlight has been demonstrated using several different data sets since the 1980's. The NO<sub>2</sub> data product routinely retrieved from measurements made by the Optical Spectrograph and InfraRed Imaging System (OSIRIS) instrument onboard the Odin satellite uses a spectral fitting technique over the 437 to 451 nm range, over which there are 36 individual wavelength measurements. In this work we present a proof of concept technique for the retrieval of NO<sub>2</sub> using only 4 of the 36 OSIRIS measurements in this wavelength range, which reduces the computational cost by almost an order of magnitude. The method is an adaptation of a triplet analysis technique that is currently used for the OSIRIS retrievals of ozone at Chappuis band wavelengths. The results obtained are shown to be in very good agreement with the spectral fit method, and provide an important alternative for applications where the computational burden is very high. Additionally this provides a baseline for future instrument design in terms of cost effectiveness and reducing spectral range requirements. |
| first_indexed | 2024-12-11T10:01:39Z |
| format | Article |
| id | doaj.art-9d54132d0ede42acb1d0aeb579b42e53 |
| institution | Directory Open Access Journal |
| issn | 1867-1381 1867-8548 |
| language | English |
| last_indexed | 2024-12-11T10:01:39Z |
| publishDate | 2011-05-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Measurement Techniques |
| spelling | doaj.art-9d54132d0ede42acb1d0aeb579b42e532022-12-22T01:12:07ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482011-05-014596597210.5194/amt-4-965-2011Fast NO<sub>2</sub> retrievals from Odin-OSIRIS limb scatter measurementsE. J. LlewellynA. F. BathgateS. BrohedeC. A. McLindenC. E. SiorisA. E. BourassaD. A. DegensteinThe feasibility of retrieving vertical profiles of NO<sub>2</sub> from space-based measurements of limb scattered sunlight has been demonstrated using several different data sets since the 1980's. The NO<sub>2</sub> data product routinely retrieved from measurements made by the Optical Spectrograph and InfraRed Imaging System (OSIRIS) instrument onboard the Odin satellite uses a spectral fitting technique over the 437 to 451 nm range, over which there are 36 individual wavelength measurements. In this work we present a proof of concept technique for the retrieval of NO<sub>2</sub> using only 4 of the 36 OSIRIS measurements in this wavelength range, which reduces the computational cost by almost an order of magnitude. The method is an adaptation of a triplet analysis technique that is currently used for the OSIRIS retrievals of ozone at Chappuis band wavelengths. The results obtained are shown to be in very good agreement with the spectral fit method, and provide an important alternative for applications where the computational burden is very high. Additionally this provides a baseline for future instrument design in terms of cost effectiveness and reducing spectral range requirements.http://www.atmos-meas-tech.net/4/965/2011/amt-4-965-2011.pdf |
| spellingShingle | E. J. Llewellyn A. F. Bathgate S. Brohede C. A. McLinden C. E. Sioris A. E. Bourassa D. A. Degenstein Fast NO<sub>2</sub> retrievals from Odin-OSIRIS limb scatter measurements Atmospheric Measurement Techniques |
| title | Fast NO<sub>2</sub> retrievals from Odin-OSIRIS limb scatter measurements |
| title_full | Fast NO<sub>2</sub> retrievals from Odin-OSIRIS limb scatter measurements |
| title_fullStr | Fast NO<sub>2</sub> retrievals from Odin-OSIRIS limb scatter measurements |
| title_full_unstemmed | Fast NO<sub>2</sub> retrievals from Odin-OSIRIS limb scatter measurements |
| title_short | Fast NO<sub>2</sub> retrievals from Odin-OSIRIS limb scatter measurements |
| title_sort | fast no sub 2 sub retrievals from odin osiris limb scatter measurements |
| url | http://www.atmos-meas-tech.net/4/965/2011/amt-4-965-2011.pdf |
| work_keys_str_mv | AT ejllewellyn fastnosub2subretrievalsfromodinosirislimbscattermeasurements AT afbathgate fastnosub2subretrievalsfromodinosirislimbscattermeasurements AT sbrohede fastnosub2subretrievalsfromodinosirislimbscattermeasurements AT camclinden fastnosub2subretrievalsfromodinosirislimbscattermeasurements AT cesioris fastnosub2subretrievalsfromodinosirislimbscattermeasurements AT aebourassa fastnosub2subretrievalsfromodinosirislimbscattermeasurements AT dadegenstein fastnosub2subretrievalsfromodinosirislimbscattermeasurements |