Show simple item record

dc.contributor.authorFu, Tzung-May
dc.contributor.authorJacob, Daniel James
dc.contributor.authorPalmer, Paul I.
dc.contributor.authorChance, Kelly V.
dc.contributor.authorWang, Yuxuan X.
dc.contributor.authorBarletta, Barbara
dc.contributor.authorBlake, Donald R.
dc.contributor.authorStanton, Jenny C.
dc.contributor.authorPilling, Michael J.
dc.date.accessioned2015-04-27T20:27:37Z
dc.date.issued2007
dc.identifier.citationFu, Tzung-May, Daniel J. Jacob, Paul I. Palmer, Kelly Chance, Yuxuan X. Wang, Barbara Barletta, Donald R. Blake, Jenny C. Stanton, and Michael J. Pilling. 2007. “Space-Based Formaldehyde Measurements as Constraints on Volatile Organic Compound Emissions in East and South Asia and Implications for Ozone.” Journal of Geophysical Research 112 (D6). doi:10.1029/2006jd007853.en_US
dc.identifier.issn0148-0227en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:14807100
dc.description.abstractWe use a continuous 6‐year record (1996–2001) of GOME satellite measurements of formaldehyde (HCHO) columns over east and south Asia to improve regional emission estimates of reactive nonmethane volatile organic compounds (NMVOCs), including isoprene, alkenes, HCHO, and xylenes. Mean monthly HCHO observations are compared to simulated HCHO columns from the GEOS‐Chem chemical transport model using state‐of‐science, “bottom‐up” emission inventories from Streets et al. (2003a) for anthropogenic and biomass burning emissions and Guenther et al. (2006) for biogenic emissions (MEGAN). We find that wintertime GOME observations can diagnose anthropogenic reactive NMVOC emissions from China, leading to an estimate 25% higher than Streets et al. (2003a). We attribute the difference to vehicular emissions. The biomass burning source for east and south Asia is almost 5 times the estimate of Streets et al. (2003a). GOME reveals a large source from agricultural burning in the North China Plain in June missing from current inventories. This source may reflect a recent trend toward in‐field burning of crop residues as the need for biofuels diminishes. Biogenic isoprene emission in east and south Asia derived from GOME is 56 ± 30 Tg yr, similar to 52 Tg yr from MEGAN. We find, however, that MEGAN underestimates emissions in China and overestimates emissions in the tropics. The higher Chinese biogenic and biomass burning emissions revealed by GOME have important implications for ozone pollution. We find 5 to 20 ppb seasonal increases in surface ozone in GEOS‐Chem for central and northern China when using GOME‐derived versus bottom‐up emissions. Our methodology can be adapted for other regions of the world to provide top‐down constraints on NMVOC emissions where multiple emission source types overlap in space and time.en_US
dc.description.sponsorshipEngineering and Applied Sciencesen_US
dc.language.isoen_USen_US
dc.publisherWiley-Blackwellen_US
dc.relation.isversionofdoi:10.1029/2006JD007853en_US
dc.relation.hasversionhttp://www.cfa.harvard.edu/atmosphere/publications/2006JD007853.pdfen_US
dash.licenseLAA
dc.titleSpace-based formaldehyde measurements as constraints on volatile organic compound emissions in east and south Asia and implications for ozoneen_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalJ. Geophys. Res.en_US
dash.depositing.authorJacob, Daniel James
dc.date.available2015-04-27T20:27:37Z
dc.identifier.doi10.1029/2006JD007853*
dash.contributor.affiliatedChance, Kelly
dash.contributor.affiliatedJacob, Daniel


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record