2001
DOI: 10.1029/2000jd000060
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Ozone photochemistry and the role of peroxyacetyl nitrate in the springtime northeastern Pacific troposphere: Results from the Photochemical Ozone Budget of the Eastern North Pacific Atmosphere (PHOBEA) campaign

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Cited by 71 publications
(69 citation statements)
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“…The main loss process for PAN below ∼7 km is via thermal decomposition (CH 3 C(O)O 2 NO 2 → CH 3 C(O)O 2 + NO 2 ) (Talukdar et al, 1995). The dissociative lifetime of PAN is longer than 1 month at temperatures characteristic of the mid-troposphere in spring, but much shorter, on the order of 1 h, at 20 • C. PAN decomposes within subsiding air masses to release NO x in remote areas, and measurements of PAN and NO x in the remote troposphere support this view (Kotchenruther et al, 2001b;Singh and Salas, 1986;Fischer et al, 2010b).…”
Section: The Impact Of Asian Emissions Of Osupporting
confidence: 50%
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“…The main loss process for PAN below ∼7 km is via thermal decomposition (CH 3 C(O)O 2 NO 2 → CH 3 C(O)O 2 + NO 2 ) (Talukdar et al, 1995). The dissociative lifetime of PAN is longer than 1 month at temperatures characteristic of the mid-troposphere in spring, but much shorter, on the order of 1 h, at 20 • C. PAN decomposes within subsiding air masses to release NO x in remote areas, and measurements of PAN and NO x in the remote troposphere support this view (Kotchenruther et al, 2001b;Singh and Salas, 1986;Fischer et al, 2010b).…”
Section: The Impact Of Asian Emissions Of Osupporting
confidence: 50%
“…These past measurements have primarily been campaign-based and are thus limited in temporal coverage (Kotchenruther et al, 2001b;Nowak et al, 2004;Wolfe et al, 2007;Zhang et al, 2008;Kotchenruther et al, 2001a;Murphy et al, 2006). Figure 2 presents the mean PAN mixing ratios at MBO in the context of other recent observations over the Northeastern Pacific.…”
Section: Comparison To Other Free Tropospheric Pan Observations In Thmentioning
confidence: 99%
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“…For the eastern North Pacific two studies have derived values for P(O 3 ) from photochemical box models constrained with observations from field studies 15 years apart. In the MBL near solar noon Chameides et al [1989] found very rapid net destruction, P(O 3 ) = À0.7 ppbv/h (approximately À4 ppbv/d) in 1984, while Kotchenruther et al [2001b] found values a factor of nearly 5 smaller in 1999. It should be noted that the former value must be treated with caution; only one flight sampled the MBL in this study, and that air may have had some continental influence as indicated by the relatively high O 3 levels apparent in the CITE 1C data below 1 km in Figure 9, but not for the corresponding fit for TRACE-P.…”
Section: O 3 Photochemical Tendencymentioning
confidence: 99%