Coupling an advanced particle microphysics model with WRF-Chem and improving aerosol-climate interaction simulations at regional scales

Technical Report · Tue Jun 11 04:00:00 EDT 2013

DOI:https://doi.org/10.2172/1083068· OSTI ID:1083068

Yu, Fangqun ^[1]; Luo, Gan ^[2]

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1. State Univ. of New York (SUNY), Albany, NY (United States); Atmospheric Sciences Research Center, State University of New York at Albany
2. State Univ. of New York (SUNY), Albany, NY (United States)

The main objectives of this project are to improve simulations of the aerosol processes in the WRF-Chem and to investigate the aerosol-climate interactions at regional scales. Under the support of this project, we have successfully incorporated a computationally efficient advanced particle microphysics (APM) model, which has been previously incorporated into a global chemistry transport model (GEOS-Chem), into the framework of the WRF-Chem as an additional aerosol scheme (Luo and Yu, 2011). We have also developed a scheme for calculating regional aerosol optical depth (AOD) from detailed aerosol information resolved by the WRF-Chem-APM model (Yu et al., 2012). Our studies using WRF-Chem-APM show that secondary particles formed via ion-mediated nucleation (IMN) dominate particle number abundance (Luo and Yu, 2011) and aerosol AOD (Yu et al., 2012a) in central and eastern US. More recent applications indicate that secondary particles have significant effect on clouds and the APM improves the ability of WRF-Chem in predicting key cloud properties (Luo and Yu, 2012). In collaborative efforts relevant to aerosol-climate interaction and with partial support from this DOE project, we have contributed to the development and initial application of the Global-Through-Urban Weather Research and Forecasting Model with Chemistry (GU-WRF/Chem) (Zhang et al., 2012), the study of aerosol direct radiative forcing with GEOS-Chem-APM (Ma et al., 2012), the investigation of effect of spectral-dependent surface albedo on Saharan dust direct radiative forcing (Ma and Yu, 2012), and the study of indirect radiative forcing by ion-mediated nucleation of aerosol with CAM5 (Yu et al., 2012b).

• Research Organization: State Univ. of New York (SUNY), Albany, NY (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Biological and Environmental Research (BER)
• DOE Contract Number: SC0002199
• OSTI ID: 1083068
• Report Number(s): DOE/SC0002199
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES