Abstract
Abstract A comprehensive acid deposition modeling system (CADM) was developed to simulate the long-range transport of air pollutants and regional acidic deposition processes over Northeast Asia. The main objective of the CADM is to facilitate efficient assessment by providing explicit information on long-range transboundary processes. The implemented modeling system in CADM is composed of a numerical atmospheric model (CSU RAMS) and an Eulerian chemistry/transport/deposition model. For the model validation, CADM was used to simulate long-range transport over the Northeast Asian region during 5–12 March 2002, and the simulated concentrations were compared with both surface observations at background monitoring stations as well as aircraft measurements. Additional experiments were performed to examine the sensitivity of simulated concentrations to input fields (emission rate and meteorological fields). The simulated concentrations showed some encouraging agreements with some success for the temporal variation of surface SO 2 concentrations in comparison with both the observation at background monitoring stations and aircraft observation. However, disagreements were significant for NO x and O 3 concentrations, showing large inconsistencies especially at higher levels. The magnitudes of this disagreement were found to have some dependence on both input fields of emission rate and meteorology.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
