Lake Michigan Ozone Study (LMOS): Measurements from an instrumented aircraft
| Autor: | B. A. Watkins, R. L. Gunter, Joe F. Boatman, M. Luria, C. C. Van Valin, Stan W. Wilkison, D. L. Wellman |
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| Rok vydání: | 1992 |
| Předmět: |
Shore
geography Ozone geography.geographical_feature_category Meteorology Air pollution Atmospheric sciences medicine.disease_cause Plume chemistry.chemical_compound Boundary layer Altitude chemistry medicine Panache General Earth and Planetary Sciences Environmental science Air quality index General Environmental Science |
| Zdroj: | Atmospheric Environment. Part A. General Topics. 26:3265-3277 |
| ISSN: | 0960-1686 |
| DOI: | 10.1016/0960-1686(92)90342-i |
| Popis: | As part of the Lake Michigan Ozone Study, the NOAA instrumented King Air research aircraft made a series of flights over Lake Michigan during the summers of 1990 and 1991 to characterize the atmospheric conditions prevailing during times when O 3 concentrations exceeded the air quality standard. Most of the time, O 3 concentrations were within the normal range (40–70 ppbv) for the location and season, but higher concentrations were measured during the afternoon flights at several isolated locations. During three afternoon flights, high O 3 concentrations (> 120 ppbv) were observed along portions of the flight path; the highest 1-min average exceeded 160 ppbv. In two flights the highest O 3 concentrations were observed in the lower boundary layer over the eastern portion of the flight track; in one case the high concentrations were found over the western side of the lake throughout the boundary layer. The increased O 3 was accompanied by moderately increased SO 2 and NO x (10–20 ppbv); outside the region of elevated O 3 , the SO 2 and NO x were less than 2–3 ppbv. The elevated zone concentrations were related to emissions from the urban region located near the southern and southwestern shores of Lake Michigan. |
| Databáze: | OpenAIRE |
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