A Numerical Daily Air Quality Forecast System for The Pacific Northwest

Vaughan, J. K.; Lamb, Brian; Frei, Christopher R.; Wilson, R. O. B.; Bowman, Clint; Figueroa-Kaminsky, Cristiana; Otterson, Sally; Boyer, Mike; Mass, C.; Albright, Mark D.; Koenig, Jane Q.; Collingwood, Alice; Gilroy, Mike; Maykut, Naydene N.

doi:10.1175/bams-85-4-549

Cited by 52 publications

(37 citation statements)

References 6 publications

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“…Next, detailed information about the distribution and the density of plants, including specific species, is required. Recently, researchers are currently developing real-time air quality forecasting systems in which biogenic emission inventories will be important (Vaughan et al, 2004).…”

Section: Modeling Of Biogenic Sourcesmentioning

confidence: 99%

Long-range aerosol transport from Europe to Istanbul, Turkey

Kındap

Ünal

Chen

et al. 2006

Atmospheric Environment

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Section: Modeling Of Biogenic Sourcesmentioning

confidence: 99%

Long-range aerosol transport from Europe to Istanbul, Turkey

Kındap

Ünal

Chen

et al. 2006

Atmospheric Environment

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“…Gaining a better understanding of BVOC emissions is, thus, important for determining the appropriate regulatory oxidant control strategies (e.g., NO x vs. VOC reductions) (Trainer et al, 2000), and for correctly modeling atmospheric aerosol formation from the oxidation of monoterpene emissions (Hallquist et al, 1999;Geron et al, 2000). Lastly, researchers are currently developing real-time air quality forecasting systems in which BVOC emission inventories will be important (Vaughan et al, 2004).…”

Section: Article In Pressmentioning

confidence: 99%

Monoterpene emissions from a Pacific Northwest Old-Growth Forest and impact on regional biogenic VOC emission estimates

Pressley

Lamb

Westberg

et al. 2004

Atmospheric Environment

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Measurements of natural hydrocarbon emission rates are reported for an old-growth Pacific Northwest coniferous forest. The emission data were collected for the two dominant species Douglas-fir (Pseudotsuga menziesii) and western hemlock (Tsuga heterophylla) during the growing season in 1997 and 1998 using branch enclosure techniques. Samples were collected at different heights from 13 to 51 m within the canopy using the Wind River Canopy Crane facility. The standard emission factor at a temperature of 30 C and the temperature coefficient for Douglas-fir is E s ¼ 0:3970:14 mg C g À1 h À1 and b ¼ 0:1470:05 C À1 and for western hemlock E s ¼ 0:9570:17 mg C g À1 h À1 and b ¼ 0:0670:02 C À1 : There was considerable variability among all the emission factors due to seasonal and branch-tobranch variations. Within season emission factors appear to decline from May to September for the Douglas-fir, although there was no corresponding decrease for the western hemlock. There was no significant difference in standard emission factors (E s ) or temperature coefficients as a function of sunlit versus shady growth environment (different heights) for Douglas-fir, but western hemlock emission samples collected low in the canopy showed no exponential correlation with temperature. Applying the standard emission factors from this study to a Pacific Northwest domain and comparing the modified emission inventory to the current regulatory-based emission inventory yielded a net decrease of 19% in the domain wide monoterpene emissions. The relatively small difference in biogenic emissions is slightly misleading, as the difference in standard emission rates between this study and current regulatory rates is quite significant, and they offset each other when combined in this domain. When this inventory was input into a regional photochemical air quality simulation using the MM5/CMAQ system, the reduction in biogenic emissions resulted in an insignificant decrease of O 3 and a significant decrease in the secondary organic aerosol (domain wide À20%). The emission measurements reported here represent one of the first extensive data sets for an old-growth forest, where sampling conditions are limited to in situ enclosure techniques within the tall, elevated canopy. r

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“…chemistry-transport models (CTM) such as Vautard et al (2001); Tilmes (2002); Cope (2004); McHenry et al (2004); Vaughan (2004);McKeen (2005). With respect to the statistical approaches, these models provide a more comprehensive picture of air quality for a given time period and geographical area, following the evolution of urban pollution plume.…”

Section: Introductionmentioning

confidence: 99%

Atmospheric composition forecasting in Europe

Menut

Bessagnet

2010

Ann. Geophys.

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Abstract.The atmospheric composition is a societal issue and, following new European directives, its forecast is now recommended to quantify the air quality. It concerns both gaseous and particles species, identified as potential problems for health. In Europe, numerical systems providing daily air quality forecasts are numerous and, mostly, operated by universities. Following recent European research projects (GEMS, PROMOTE), an organization of the air quality forecast is currently under development. But for the moment, many platforms exist, each of them with strengths and weaknesses. This overview paper presents all existing systems in Europe and try to identify the main remaining gaps in the air quality forecast knowledge. As modeling systems are now able to reasonably forecast gaseous species, and in a lesser extent aerosols, the future directions would concern the use of these systems with ensemble approaches and satellite data assimilation. If numerous improvements were recently done on emissions and chemistry knowledge, improvements are still needed especially concerning meteorology, which remains a weak point of forecast systems. Future directions will also concern the use of these forecast tools to better understand and quantify the air pollution impact on health.

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A Numerical Daily Air Quality Forecast System for The Pacific Northwest

Cited by 52 publications

References 6 publications

Long-range aerosol transport from Europe to Istanbul, Turkey

Long-range aerosol transport from Europe to Istanbul, Turkey

Monoterpene emissions from a Pacific Northwest Old-Growth Forest and impact on regional biogenic VOC emission estimates

Atmospheric composition forecasting in Europe

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