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Global Dust Model Intercomparison in AeroCom Phase I
Contributor:Liu, Xiaohong; Huneeus, N.; Schulz, M.; Balkanski, Y.; Griesfeller, J.; Prospero, J.; Kinne, S.; Bauer, S.; Boucher, O.; Chin, M.; Dentener, F.; Diehl, T.; Easter, R.; Fillmore, D.; Ghan, S.; Ginoux, P.; Grini, A.; Horowitz, L.; Koch, D.; Krol, M. C.; Landing, W.; Mahowald, N.; Miller, R.; Morcrette, J.-J.; Myhre, G.; Penner, J.; Perlwitz, J.; Stier, P.; Takemura, T.; Zender, C. S.
This study presents the results of a broad intercomparison of a total of 15 global aerosol models within the AeroCom project. Each model is compared to observations related to desert dust aerosols, their direct radiative ...
Spatial Distribution of Mineral Dust and its Shortwave Radiative Forcing Over North Africa : Modeling Sensitivities to Dust Emissions and Aerosol Size Treatments, The
Contributor:Zhao, C.; Liu, Xiaohong; Leung, L. R.; Johnson, B.; McFarlane, S. A.; Gustafson, W. I., Jr.; Fast, J. D.; Easter, R.
A fully coupled meteorology-chemistry-aerosol model (WRF-Chem) is applied to simulate mineral dust and its shortwave (SW) radiative forcing over North Africa. Two dust emission schemes (GOCART and DUSTRAN) and two aerosol ...
Aerosol Effects on Cirrus Through Ice Nucleation in the Community Atmosphere Model CAM5 with a Statistical Cirrus Scheme
Contributor:Wang, Minghuai; Liu, Xiaohong; Zhang, Kai; Comstock, Jennifer M.
A statistical cirrus scheme that tracks ice saturation ratio in the clear-sky and cloudy portion of a grid box separately has been implemented into the Community Atmosphere Model CAM5 to provide a consistent treatment of ...
Dust aerosol impact on North Africa climate : A GCM Investigation of Aerosol-Cloud-Radiation Interactions using A-Train Satellite Data
Contributor:Gu, Y.; Liou, K. N.; Jiang, J. H.; Su, H.; Liu, Xiaohong
The climatic effects of dust aerosols in North Africa have been investigated using the atmospheric general circulation model (AGCM) developed at the University of California, Los Angeles (UCLA). The model includes an ...
Sensitivity of CAM5-Simulated Arctic Clouds and Radiation to Ice Nucleation Parameterization
Contributor:Xie, S.; Liu, Xiaohong; Zhao, C.; Zhang, Y.
Sensitivity of Arctic clouds and radiation in the Community Atmospheric Model, version 5, to the ice nucleation process is examined by testing a new physically based ice nucleation scheme that links the variation of ice ...
Contributions of Clouds, Surface Albedos, and Mixed-Phase Ice Nucleation Schemes to Arctic Radiation Biases in CAM5
Contributor:English, Jason M.; Kay, Jennifer E.; Gettelman, Andrew; Liu, Xiaohong; Wang, Yong; Zhang, Yuying; Chepfer, Helene
The Arctic radiation balance is strongly affected by clouds and surface albedo. Prior work has identified Arctic cloud liquid water path (LWP) and surface radiative flux biases in the Community Atmosphere Model, version 5 ...
Testing Cloud Microphysics Parameterizations in NCAR CAM5 with ISDAC and M-PACE Observations
Contributor:Liu, Xiaohong; Xie, Shaocheng; Boyle, James; Klein, Stephen A.; Shi, Xiangjun; Wang, Zhien; Lin, Wuyin; Ghan, Steven J.; Earle, Michael; Liu, Peter S. K.; Zelenyuk, Alla
Arctic clouds simulated by the National Center for Atmospheric Research (NCAR) Community Atmospheric Model version 5 (CAM5) are evaluated with observations from the U.S. Department of Energy (DOE) Atmospheric Radiation ...
Aerosol Indirect Effect on the Grid-Scale Clouds in the Two-Way Coupled WRF-CMAQ : Model Description, Development, Evaluation and Regional Analysis
Contributor:Yu, S.; Mathur, R.; Pleim, J.; Wong, D.; Gilliam, R.; Alapaty, K.; Zhao, C.; Liu, Xiaohong
This study implemented first, second and glaciation aerosol indirect effects (AIE) on resolved clouds in the two-way coupled WRF-CMAQ modeling system by including parameterizations for both cloud drop and ice number ...
Radiative Forcing of the Direct Aerosol Effect from AeroCom Phase II Simulations
Contributor:Myhre, G.; Samset, B. H.; Schulz, M.; Balkanski, Y.; Bauer, S.; Berntsen, T. K.; Bian, H.; Bellouin, N.; Chin, M.; Diehl, T.; Easter, R. C.; Feichter, J.; Ghan, S. J.; Hauglustaine, D.; Iversen, T.; Kinne, S.; Kirkevåg, A.; Lamarque, J.-F.; Lin, G.; Liu, Xiaohong; Lund, M. T.; Luo, G.; Ma, X.; Van Noije, T.; Penner, J. E.; Rasch, P. J.; Ruiz, A.; Seland, Ø.; Skeie, R. B.; Stier, P.; Takemura, T.; Tsigaridis, K.; Wang, P.; Wang, Z.; Xu, L.; Yu, H.; Yu, F.; Yoon, J.-H.; Zhang, K.; Zhang, H.; Zhou, C.
We report on the AeroCom Phase II direct aerosol effect (DAE) experiment where 16 detailed global aerosol models have been used to simulate the changes in the aerosol distribution over the industrial era. All 16 models ...
Global Simulations of ice Nucleation and Ice Supersaturation with an Improved Cloud Scheme in the Community Atmosphere Model
Contributor:Gettelman, A.; Liu, Xiaohong; Ghan, S. J.; Morrison, H.; Park, S.; Conley, A. J.; Klein, S. A.; Boyle, J.; Mitchell, D. L.; Li, J.-L.F.
A process-based treatment of ice supersaturation and ice nucleation is implemented in the National Center for Atmospheric Research Community Atmosphere Model (CAM). The new scheme is designed to allow (1) supersaturation ...