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|a 10.1029/2020jd032881
|2 doi
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|a pubmed24n1097.xml
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|a eng
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|a Harkey, Monica
|e verfasserin
|4 aut
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| 245 |
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|a Satellite Formaldehyde to Support Model Evaluation
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|c 2021
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 13.08.2021
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Formaldehyde (HCHO), a known carcinogen classified as a hazardous pollutant by the United States Environmental Protection Agency (U.S. EPA), is measured through monitoring networks across the U.S. Since these data are limited in spatial and temporal extent, model simulations from the U.S. EPA Community Multiscale Air Quality (CMAQ) model are used to estimate ambient HCHO exposure for the EPA National Air Toxics Assessment (NATA). Here, we employ satellite HCHO retrievals from the Ozone Monitoring Instrument (OMI)-the NASA retrieval developed by the Smithsonian Astrophysical Observatory (SAO), and the European Union Quality Assurance for Essential Climate Variables (QA4ECV) retrieval-to evaluate three CMAQ configurations, spanning the summers of 2011 and 2016, with differing biogenic emissions inputs and chemical mechanisms. These CMAQ configurations capture the general spatial and temporal behavior of both satellite retrievals, but underestimate column HCHO, particularly in the western U.S. In the southeastern U.S., the comparison with OMI HCHO highlights differences in modeled meteorology and biogenic emissions even with differences in satellite retrievals. All CMAQ configurations show low daily correlations with OMI HCHO (r = 0.26 - 0.38), however, we find higher monthly correlations (r = 0.52 - 0.73), and the models correlate best with the OMI-QA4ECV product. Compared to surface observations, we find improved agreement over a 24-hour period compared to afternoon-only, suggesting daily HCHO amounts are captured with more accuracy than afternoon amounts. This work highlights the potential for synergistic improvements in modeling and satellite retrievals to support near-surface HCHO estimates for the NATA and other applications
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|a Journal Article
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1 |
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|a Holloway, Tracey
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kim, Eliot J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Baker, Kirk R
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Henderson, Barron
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of geophysical research. Atmospheres : JGR
|d 1998
|g 126(2021), 4 vom: 27. Feb.
|w (DE-627)NLM098183494
|x 2169-897X
|7 nnns
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| 773 |
1 |
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|g volume:126
|g year:2021
|g number:4
|g day:27
|g month:02
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| 856 |
4 |
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|u http://dx.doi.org/10.1029/2020jd032881
|3 Volltext
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