Now showing items 1-10 of 16
Single-Column Model Ensemble Approach Applied to the TWP-ICE Experiment, A
Author(s):Davies, L.; Jakob, C.; Cheung, K.; Del Genio, A.; Hill, A.; Hume, T.; Keane, R. J.; Komori, T.; Larson, V. E.; Lin, Y.; Liu, Xiaohong; Nielsen, B. J.; Petch, J.; Plant, R. S.; Singh, M. S.; Shi, X.; Song, X.; Wang, W.; Whitall, M. A.; Wolf, A.; Xie, S.; Zhang, G.
Single-column models (SCM) are useful test beds for investigating the parameterization schemes of numerical weather prediction and climate models. The usefulness of SCM simulations are limited, however, by the accuracy of ...
Global Extent of the Mid Stratospheric CN Layer : A Three-Dimensional Modeling Study, The
Author(s):Campbell, P.; Mills, M.; Deshler, Terry
For the first time the global extent of a mid-stratospheric new particle layer is addressed, using the National Center for Atmospheric Research Community Earth System Model, version 1 (CESM1), with the high-top atmosphere ...
Relationships Between Ice Water Content and Volume Extinction Coefficient from in Situ Observations for Temperatures from 0° to -86°C : Implications for Spaceborne Iidar Retrievals
Author(s):Heymsfield, A.; Winker, D.; Avery, M.; Vaughan, M.; Diskin, G.; Deng, Min; Mitev, V.; Matthey, R.
An examination of 2 yr of Cloud-Aerosol Lidar Infrared Pathfinder Satellite Observations (CALIPSO) lidar observations and CloudSat cloud radar observations shows that ice clouds at temperatures below about -45°C frequently ...
Dust aerosol impact on North Africa climate : A GCM Investigation of Aerosol-Cloud-Radiation Interactions using A-Train Satellite Data
Author(s):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 ...
Constraining Cloud Lifetime Effects of Aerosols using A-Train Satellite Observations
Author(s):Wang, M.; Ghan, S.; Liu, Xiaohong; L'Ecuyer, T. S.; Zhang, K.; Morrison, H.; Ovchinnikov, M.; Easter, R.; Marchand, R.; Chand, D.; Qian, Y.; Penner, J. E.
Aerosol indirect effects have remained the largest uncertainty in estimates of the radiative forcing of past and future climate change. Observational constraints on cloud lifetime effects are particularly challenging since ...
Toward a Minimal Representation of Aerosols in Climate Models : Comparative Decomposition of Aerosol Direct, Semidirect, and Indirect Radiative Forcing
Author(s):Ghan, S. J.; Liu, Xiaohong; Easter, R. C.; Zaveri, R.; Rasch, P. J.; Yoon, J.-H.; Eaton, B.
The authors have decomposed the anthropogenic aerosol radiative forcing into direct contributions from each aerosol species to the planetary energy balance through absorption and scattering of solar radiation, indirect ...
Observation of Polar Stratospheric Clouds Over McMurdo (77.85°S, 166.67°E) (2006-2010)
Author(s):Di Liberto, L.; Cairo, F.; Fierli, F.; Di Donfrancesco, G.; Viterbini, M.; Deshler, Terry; Snels, M.
Polar stratospheric clouds (PSCs) have been observed in the Antarctic winter from 2006 to 2010 at the Antarctic base of McMurdo Station using a newly developed Rayleigh lidar. Total backscatter ratio and volume depolarization ...
Global Distribution and Climate Forcing of Marine Organic Aerosol, Part 2. Effects on Cloud Properties and Radiative Forcing
Author(s):Gantt, B.; Xu, J.; Meskhidze, N.; Zhang, Y.; Nenes, A.; Ghan, S. J.; Liu, Xiaohong; Easter, R.; Zaveri, R.
A series of simulations with the Community Atmosphere Model version 5 (CAM5) with a 7-mode Modal Aerosol Model were conducted to assess the changes in cloud microphysical properties and radiative forcing resulting from ...
Intercomparison of the Cloud Water Phase Among Global Climate Models
Author(s):Komurcu, M.; Storelvmo, T.; Tan, I.; Lohmann, U.; Yun, Y.; Penner, J. E.; Wang, Y.; Liu, Xiaohong; Takemura, T.
Mixed-phase clouds (clouds that consist of both cloud droplets and ice crystals) are frequently present in the Earth's atmosphere and influence the Earth's energy budget through their radiative properties, which are highly ...
Global Distribution and Climate Forcing of Marine Organic Aerosol : 1. Model Improvements and Evaluation
Author(s):Meskhidze, N.; Xu, J.; Gantt, B.; Zhang, Y.; Nenes, A.; Ghan, S. J.; Liu, Xiaohong; Easter, R.; Zaveri, R.
Marine organic aerosol emissions have been implemented and evaluated within the National Center of Atmospheric Research (NCAR)'s Community Atmosphere Model (CAM5) with the Pacific Northwest National Laboratory's 7-mode ...