TY - JOUR
T1 - Simulations of Mideast transboundary ozone transport
T2 - A source apportionment case study
AU - Weinroth, E.
AU - Luria, M.
AU - Emery, C.
AU - Ben-Nun, A.
AU - Bornstein, R.
AU - Kaplan, J.
AU - Peleg, M.
AU - Mahrer, Y.
PY - 2008/5
Y1 - 2008/5
N2 - The Regional Atmospheric Modeling System (RAMS), Comprehensive Air Quality Model with Extensions (CAMx), and a new emissions inventory were used to study O3 formation downwind from the Israeli coast during summer 1997. While RAMS reproduced the observed diurnal variation of surface wind speeds and temperatures reasonably well, directions were somewhat less correlated. CAMx generally also reproduced the timing, location, and magnitude of measured surface and 300-m O3 max over Jerusalem, but also showed an even larger concurrent max over western Jordan, an area without observations. Observed near-zero nighttime surface O3 values, however, were over predicted because the CAMx grid was too large to accurately account for local emissions and titration effects. CAMx also generally accurately predicted another observed 300 m local max near the Dead Sea, but could not account for a unique O3 depletion mechanism from bromine monoxide released from its water surface. Factor-separation analysis showed that transportation emissions produced 66% and 29% of the Jerusalem and Jordan 300-m simulated maxima, respectively, while power plant emissions produced about 35% and 62%, respectively.
AB - The Regional Atmospheric Modeling System (RAMS), Comprehensive Air Quality Model with Extensions (CAMx), and a new emissions inventory were used to study O3 formation downwind from the Israeli coast during summer 1997. While RAMS reproduced the observed diurnal variation of surface wind speeds and temperatures reasonably well, directions were somewhat less correlated. CAMx generally also reproduced the timing, location, and magnitude of measured surface and 300-m O3 max over Jerusalem, but also showed an even larger concurrent max over western Jordan, an area without observations. Observed near-zero nighttime surface O3 values, however, were over predicted because the CAMx grid was too large to accurately account for local emissions and titration effects. CAMx also generally accurately predicted another observed 300 m local max near the Dead Sea, but could not account for a unique O3 depletion mechanism from bromine monoxide released from its water surface. Factor-separation analysis showed that transportation emissions produced 66% and 29% of the Jerusalem and Jordan 300-m simulated maxima, respectively, while power plant emissions produced about 35% and 62%, respectively.
KW - Air quality modeling
KW - Atmospheric chemistry
KW - Emissions modeling
KW - Mesoscale meteorology
KW - Model evaluation
UR - http://www.scopus.com/inward/record.url?scp=43049175196&partnerID=8YFLogxK
U2 - 10.1016/j.atmosenv.2008.01.002
DO - 10.1016/j.atmosenv.2008.01.002
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AN - SCOPUS:43049175196
SN - 1352-2310
VL - 42
SP - 3700
EP - 3716
JO - Atmospheric Environment
JF - Atmospheric Environment
IS - 16
ER -