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Estimating surface NO(2) and SO(2) mixing ratios from fast-response total column observations and potential application to geostationary missions
Total-column nitrogen dioxide (NO(2)) data collected by a ground-based sun-tracking spectrometer system (Pandora) and an photolytic-converter-based in-situ instrument collocated at NASA’s Langley Research Center in Hampton, Virginia were analyzed to study the relationship between total-column and su...
Autores principales: | , , , , , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Netherlands
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4665805/ https://www.ncbi.nlm.nih.gov/pubmed/26692593 http://dx.doi.org/10.1007/s10874-013-9257-6 |
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author | Knepp, T. Pippin, M. Crawford, J. Chen, G. Szykman, J. Long, R. Cowen, L. Cede, A. Abuhassan, N. Herman, J. Delgado, R. Compton, J. Berkoff, T. Fishman, J. Martins, D. Stauffer, R. Thompson, A. M. Weinheimer, A. Knapp, D. Montzka, D. Lenschow, D. Neil, D. |
author_facet | Knepp, T. Pippin, M. Crawford, J. Chen, G. Szykman, J. Long, R. Cowen, L. Cede, A. Abuhassan, N. Herman, J. Delgado, R. Compton, J. Berkoff, T. Fishman, J. Martins, D. Stauffer, R. Thompson, A. M. Weinheimer, A. Knapp, D. Montzka, D. Lenschow, D. Neil, D. |
author_sort | Knepp, T. |
collection | PubMed |
description | Total-column nitrogen dioxide (NO(2)) data collected by a ground-based sun-tracking spectrometer system (Pandora) and an photolytic-converter-based in-situ instrument collocated at NASA’s Langley Research Center in Hampton, Virginia were analyzed to study the relationship between total-column and surface NO(2) measurements. The measurements span more than a year and cover all seasons. Surface mixing ratios are estimated via application of a planetary boundary-layer (PBL) height correction factor. This PBL correction factor effectively corrects for boundary-layer variability throughout the day, and accounts for up to ≈75 % of the variability between the NO(2) data sets. Previous studies have made monthly and seasonal comparisons of column/surface data, which has shown generally good agreement over these long average times. In the current analysis comparisons of column densities averaged over 90 s and 1 h are made. Applicability of this technique to sulfur dioxide (SO(2)) is briefly explored. The SO(2) correlation is improved by excluding conditions where surface levels are considered background. The analysis is extended to data from the July 2011 DISCOVER-AQ mission over the greater Baltimore, MD area to examine the method’s performance in more-polluted urban conditions where NO(2) concentrations are typically much higher. |
format | Online Article Text |
id | pubmed-4665805 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Springer Netherlands |
record_format | MEDLINE/PubMed |
spelling | pubmed-46658052015-12-09 Estimating surface NO(2) and SO(2) mixing ratios from fast-response total column observations and potential application to geostationary missions Knepp, T. Pippin, M. Crawford, J. Chen, G. Szykman, J. Long, R. Cowen, L. Cede, A. Abuhassan, N. Herman, J. Delgado, R. Compton, J. Berkoff, T. Fishman, J. Martins, D. Stauffer, R. Thompson, A. M. Weinheimer, A. Knapp, D. Montzka, D. Lenschow, D. Neil, D. J Atmos Chem Article Total-column nitrogen dioxide (NO(2)) data collected by a ground-based sun-tracking spectrometer system (Pandora) and an photolytic-converter-based in-situ instrument collocated at NASA’s Langley Research Center in Hampton, Virginia were analyzed to study the relationship between total-column and surface NO(2) measurements. The measurements span more than a year and cover all seasons. Surface mixing ratios are estimated via application of a planetary boundary-layer (PBL) height correction factor. This PBL correction factor effectively corrects for boundary-layer variability throughout the day, and accounts for up to ≈75 % of the variability between the NO(2) data sets. Previous studies have made monthly and seasonal comparisons of column/surface data, which has shown generally good agreement over these long average times. In the current analysis comparisons of column densities averaged over 90 s and 1 h are made. Applicability of this technique to sulfur dioxide (SO(2)) is briefly explored. The SO(2) correlation is improved by excluding conditions where surface levels are considered background. The analysis is extended to data from the July 2011 DISCOVER-AQ mission over the greater Baltimore, MD area to examine the method’s performance in more-polluted urban conditions where NO(2) concentrations are typically much higher. Springer Netherlands 2013-05-25 2015 /pmc/articles/PMC4665805/ /pubmed/26692593 http://dx.doi.org/10.1007/s10874-013-9257-6 Text en © The Author(s) 2013 https://creativecommons.org/licenses/by-nc/2.0/ Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. |
spellingShingle | Article Knepp, T. Pippin, M. Crawford, J. Chen, G. Szykman, J. Long, R. Cowen, L. Cede, A. Abuhassan, N. Herman, J. Delgado, R. Compton, J. Berkoff, T. Fishman, J. Martins, D. Stauffer, R. Thompson, A. M. Weinheimer, A. Knapp, D. Montzka, D. Lenschow, D. Neil, D. Estimating surface NO(2) and SO(2) mixing ratios from fast-response total column observations and potential application to geostationary missions |
title | Estimating surface NO(2) and SO(2) mixing ratios from fast-response total column observations and potential application to geostationary missions |
title_full | Estimating surface NO(2) and SO(2) mixing ratios from fast-response total column observations and potential application to geostationary missions |
title_fullStr | Estimating surface NO(2) and SO(2) mixing ratios from fast-response total column observations and potential application to geostationary missions |
title_full_unstemmed | Estimating surface NO(2) and SO(2) mixing ratios from fast-response total column observations and potential application to geostationary missions |
title_short | Estimating surface NO(2) and SO(2) mixing ratios from fast-response total column observations and potential application to geostationary missions |
title_sort | estimating surface no(2) and so(2) mixing ratios from fast-response total column observations and potential application to geostationary missions |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4665805/ https://www.ncbi.nlm.nih.gov/pubmed/26692593 http://dx.doi.org/10.1007/s10874-013-9257-6 |
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