Results 31 to 40 of about 1,908 (162)

Evaluation of CMAQ Coupled With a State‐of‐the‐Art Mercury Chemical Mechanism (CMAQ‐newHg‐Br)

Journal of Advances in Modeling Earth Systems, 2018
AbstractMost regional three‐dimensional chemical transport models neglect gaseous elemental mercury (GEM) oxidation by bromine (Br) radicals and Br chemistry. In this study, the Community Multiscale Air Quality model with its default mercury module (CMAQ‐Hg) was modified by implementing a state‐of‐the‐art algorithm depicting Hg reactions coupled with ...
Zhuyun Ye, Huiting Mao, Charles T. Driscoll, Yan Wang, Yanxu Zhang, Lyatt Jaeglé   +5 more
openaire   +2 more sources

Model development of dust emission and heterogeneous chemistry within the Community Multiscale Air Quality modeling system and its application over East Asia [PDF]

Atmospheric Chemistry and Physics, 2016
The Community Multiscale Air Quality (CMAQ) model has been further developed in terms of simulating natural wind-blown dust in this study, with a series of modifications aimed at improving the model's capability to predict the emission, transport, and
X. Dong, J. S. Fu, J. S. Fu, K. Huang, D. Tong, D. Tong, D. Tong, G. Zhuang   +7 more
doaj   +1 more source

Aerosol Optical Properties over China from RAMS-CMAQ Model Compared with CALIOP Observations

Atmosphere, 2017
The horizontal and vertical distributions of aerosol optical properties over China in 2013–2015 were investigated using RAMS (Regional Atmospheric Modeling System)-CMAQ (Models-3 Community Multiscale Air Quality) simulations and CALIOP (Cloud-Aerosol ...
Tong Wu, Meng Fan, Jinhua Tao, Lin Su, Ping Wang, Dong Liu, Mingyang Li, Xiao Han, Liangfu Chen   +8 more
doaj   +1 more source

Formation and Evolution Mechanisms of A Severe Haze Event in the Sichuan Basin in Winter 2016

Gaoyuan qixiang
Studying the formation and evolution mechanism of heavy pollution haze events is beneficial to control the regional scale air quality and to formulate the prevention policies of severe haze pollution.Based on the WRF-CMAQ model and actual observation ...
Xinbing REN, Xianyu YANG, Jun WEN, Shigong WANG   +3 more
doaj   +1 more source

Description and evaluation of the Community Multiscale Air Quality (CMAQ) modeling system version 5.1 [PDF]

Geoscientific Model Development, 2017
The Community Multiscale Air Quality (CMAQ) model is a comprehensive multipollutant air quality modeling system developed and maintained by the US Environmental Protection Agency's (EPA) Office of Research and Development (ORD).
K. W. Appel, S. L. Napelenok, K. M. Foley, H. O. T. Pye, C. Hogrefe, D. J. Luecken, J. O. Bash, S. J. Roselle, J. E. Pleim, H. Foroutan, W. T. Hutzell, G. A. Pouliot, G. Sarwar, K. M. Fahey, B. Gantt, R. C. Gilliam, N. K. Heath, D. Kang, R. Mathur, D. B. Schwede, T. L. Spero, D. C. Wong, J. O. Young   +22 more
doaj   +1 more source

Computationally efficient air quality forecasting tool: implementation of STOPS v1.5 model into CMAQ v5.0.2 for a prediction of Asian dust [PDF]

Geoscientific Model Development, 2016
This study suggests a new modeling framework using a hybrid Eulerian–Lagrangian-based modeling tool (the Screening Trajectory Ozone Prediction System, STOPS) for a prediction of an Asian dust event in Korea.
W. Jeon, Y. Choi, P. Percell, A. H. Souri, C.-K. Song, S.-T. Kim, J. Kim   +6 more
doaj   +1 more source

Can Deep Learning Improve CMAQ Performance?

, 2019
Three-dimensional Eulerian chemical transport models such as CMAQ often report a significant model-measurement error due to uncertainties in the treatment of physical processes and require higher run-time. Machine models are more computationally efficient and are currently used widely for forecasting purposes.
Eslami, Ebrahim, Alqamah Sayeed, Yunsoo Choi, Lops, Yannic   +3 more
openaire   +1 more source

Psychometric Properties of the Revised Child Mathematics Anxiety Questionnaire (CMAQ-R) for Spanish Speaking Children

Psicología Educativa: Revista de los Psicólogos de la Educación, 2021
Mathematics anxiety (MA) has primarily been studied in adults and children over 8 years of age in English-speaking countries. Few studies have examined MA in younger children and in Spanish-speaking contexts due to the lack of suitable instruments.
Bárbara Guzmán, Cristina Rodríguez, Roberto A. Ferreira, Juan A. Hernández-Cabrera   +3 more
doaj   +1 more source

GMU-CMAQ PM2.5 forecast for 2020 GigaFire

, 2023
{"references": ["Briggs, G. A.: Plume rise, Tech. Rep. Crit. Rev. Ser. 81pp., Natl. Tech. Inf. Serv., Springfield, VA, 1969.", "Freitas, S. R., Longo, K. M., Chatfield, R., Latham, D., Silva Dias, M. A. F., Andreae, M. O., Prins, E., Santos, J. C., Gielow, R., & Carvalho, J. A.
openaire   +1 more source

Sensibility Study for PBL Scheme of WRF-CMAQ

Journal of Korean Society for Atmospheric Environment, 2011
Numerical simulations were carried out to investigate the impact of PBL (Planetary boundary layer) scheme implemented in WRF on the result of meteorological fields and CMAQ modeling. 25-day period, representing high ozone concentration, was selected for the simulations.
Nan-Kyoung Moon, Soon-Tae Kim, Ji-Hyun Seo   +2 more
openaire   +2 more sources