Asset Details
Do you wish to reserve the book?
Asian influence on surface ozone in the United States: A comparison of chemistry, seasonality, and transport mechanisms
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Asian influence on surface ozone in the United States: A comparison of chemistry, seasonality, and transport mechanisms
Do you wish to request the book?
Asian influence on surface ozone in the United States: A comparison of chemistry, seasonality, and transport mechanisms
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Asian influence on surface ozone in the United States: A comparison of chemistry, seasonality, and transport mechanisms
2011
Overview
Ongoing growth in Asia has increased emissions of several ozone precursors which are increasingly impacting surface ozone levels in the United States. For this study we use the offline Community Atmospheric Model with Chemistry driven by National Center for Environmental Protection meteorology for 2001–2005, plus additional tagged tracers, to examine the chemistry, seasonality, and transport of Asian emissions as they are lofted from the Asian boundary layer into the free troposphere over the Pacific Ocean and into the United States. At the surface in the western United States, Asian ozone (O3A) mixing ratios are maximum in the spring at 3.36 ± 1.3 ppbv and are minimum in the summer at 1.36 ± 0.7 ppbv (mean ± standard deviation over time). Transport of O3A and its precursors to the surface in the United States depends on the structure of the elevated O3A plume and on available meteorological transport mechanisms, such as dry air streams associated with midlatitude cyclones, which can transport air from plumes with elevated levels of Asian pollution in the free troposphere to the surface. We show that the structure of such plumes has a strong seasonal dependence, entering the United States in the spring, widely dispersed between roughly 0 to 6 km and 20°N to 50°N in the lower free troposphere and boundary layer, with O3A mixing ratios between 5 and 10 ppbv. In summer the plume is less dispersed and is located in the upper free troposphere, centered at 8 km with peak O3A of 11 ppbv. Key Points Asian emissions impact surface ozone in the United States Ozone is brought to the U.S. surface in midlatitude cyclones The maximum Asian influence on U.S. O3 is found in the springtime
Publisher
Blackwell Publishing Ltd
Subject
