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Large interannual variations in nonmethane volatile organic compound emissions based on measurements of carbon monoxide

Cited 6 time in scopus
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Title
Large interannual variations in nonmethane volatile organic compound emissions based on measurements of carbon monoxide
Authors
John Mak
Zhihui Wang
Louisa Emmons
Park, Kihong
Subject
Geology
Keywords
Carbon monoxide; ENSO; Inversion anaysis; MOZART; NMVOC
Issue Date
2013
Publisher
Wiley
Citation
John Mak, et al. 2013. "Large interannual variations in nonmethane volatile organic compound emissions based on measurements of carbon monoxide". GEOPHYSICAL RESEARCH LETTERS, 40(1): 221-226.
Abstract
We present source estimates of atmospheric carbon monoxide from nonmethane volatile organic compound (NMVOC) oxidation during a period of 8 years (1997? 2004) using a Bayesian inversion analysis. The optimized global NMVOC-derived CO source strength indicates a change of a factor of 2 between the 1997? 1998 strong El Ni? o and subsequent La Ni? a conditions. For comparison, the average 8 year interannual variability (IAV) is 18%. The variation of NMVOC-derived CO is closely correlated with the Oceanic Ni? o Index (ONI) and surface temperature. A time-lagged correlation analysis between ONI and NMVOC-derived CO inventory indicated El Ni? o/Southern Oscillation leads the Northern Hemisphere (NH) NMVOC-derived CO production by about 3 months earlier than the Southern Hemisphere’s (SH). The SH NMVOC-derived CO was positively correlated with the lagged-ONI (r = 0.57), while the temperature change barely influenced SH NMVOC-derived CO (r = 0.01). In the NH, temperature was more robustly correlated with NMVOC-derived CO (r = 0.58) than the lagged- ONI (r = 0.35). In particular, the extra-tropical temperature showed a strong correlation (r = 0.90) with the NH NMVOCderived CO and suggested its primary role in controlling the interannual variability of the NH NMVOC-derived CO.CO source strength indicates a change of a factor of 2 between the 1997? 1998 strong El Ni? o and subsequent La Ni? a conditions. For comparison, the average 8 year interannual variability (IAV) is 18%. The variation of NMVOC-derived CO is closely correlated with the Oceanic Ni? o Index (ONI) and surface temperature. A time-lagged correlation analysis between ONI and NMVOC-derived CO inventory indicated El Ni? o/Southern Oscillation leads the Northern Hemisphere (NH) NMVOC-derived CO production by about 3 months earlier than the Southern Hemisphere’s (SH). The SH NMVOC-derived CO was positively correlat
URI
http://repository.kopri.re.kr/handle/201206/6353
DOI
http://dx.doi.org/10.1029/2012GL052303
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