Impacts of anthropogenic and natural sources on free tropospheric ozone over the Middle East
نویسندگان
چکیده
منابع مشابه
Impacts of anthropogenic and natural NO(x) sources over the U.S. on tropospheric chemistry.
We evaluate the impact of anthropogenic and natural NO(x) sources over the contiguous United States on tropospheric NO(x) and O(3) levels by using a global 3D chemical transport model. The effects of major U.S. surface NO(x) emission sources (including anthropogenic, biomass burning, and soil emissions) are compared with that of lightning-produced NO(x). Summer lightning is shown to play a domi...
متن کاملEnhanced Mid-Latitude Tropospheric Column Ozone over East Asia: Coupled Effects of Stratospheric Ozone Intrusion and Anthropogenic Sources
We analyze tropospheric column ozone (TCO) data observed by satellite instruments over East Asia for 15 years (from 1995 to 2009), and investigate the relationship between enhanced TCO (E-TCO) and ozone intrusion from the stratosphere near the subtropical jet (STJ). A belt of E-TCO is observed at mid-latitude over East Asia throughout the year; the belt is located at latitudes approximately equ...
متن کاملImpacts of the East Asian monsoon on lower tropospheric ozone over coastal South China
The impact of the East Asian monsoon (EAM) on climatology and interannual variability of tropospheric ozone (O3) over the coastal South China was investigated by analyzing 11 years of ozonesonde data over Hong Kong with the aid of Lagrangian dispersion modeling of carbon monoxide and calculation of an EAM index. It was found that the seasonal cycle of O3 in the lower troposphere is highly relat...
متن کاملObservation of lower tropospheric ozone enhancement over East Asia
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متن کاملAnthropogenic forcing on tropospheric ozone and OH since preindustrial times
A global three-dimensional model of tropospheric hemistry is used to investigate the changes in tropospheric 03 and OH since preindustrial times as a result of fuel combustion and industry, biomass burning, and growth in atmospheric CH 4. Model results indicate a 63% increase of the global tropospheric 03 burden from preindustrial times to present (80% and 50% in the northern and southern hemis...
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ژورنال
عنوان ژورنال: Atmospheric Chemistry and Physics
سال: 2016
ISSN: 1680-7324
DOI: 10.5194/acp-16-6537-2016