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Constraining Aging Processes of Black Carbon in the Community Atmosphere Model Using Environmental Chamber Measurements [PDF]

Journal of Advances in Modeling Earth Systems, 2018
The direct radiative forcing of black carbon aerosol (BC) on the Earth system remains unsettled, largely due to the uncertainty with physical properties of BC throughout their lifecycle.
Yuan Wang, Po‐Lun Ma, Jianfei Peng, Renyi Zhang, Jonathan H. Jiang, Richard C. Easter, Yuk L. Yung   +6 more
doaj   +2 more sources

Aerosol specification in single-column Community Atmosphere Model version 5 [PDF]

Geoscientific Model Development, 2015
Single-column model (SCM) capability is an important tool for general circulation model development. In this study, the SCM mode of version 5 of the Community Atmosphere Model (CAM5) is shown to handle aerosol initialization and advection improperly ...
B. Lebassi-Habtezion, P. M. Caldwell
doaj   +4 more sources

Sensitivity studies of dust ice nuclei effect on cirrus clouds with the Community Atmosphere Model CAM5 [PDF]

Atmospheric Chemistry and Physics, 2012
In this study the effect of dust aerosol on upper tropospheric cirrus clouds through heterogeneous ice nucleation is investigated in the Community Atmospheric Model version 5 (CAM5) with two ice nucleation parameterizations.
X. Liu, X. Shi, K. Zhang, E. J. Jensen, A. Gettelman, D. Barahona, A. Nenes, P. Lawson   +7 more
doaj   +5 more sources

Impacts of Antarctic Sea Ice, AMV and IPO on Extratropical Southern Hemisphere Climate: A Modeling Study

Frontiers in Earth Science, 2021
Some studies have discussed potential influences of Antarctic sea ice anomalies, Atlantic Multi-decadal Variability (AMV), and Interdecadal Pacific Oscillation (IPO) on the Southern Hemisphere (SH) climate, individually.
Zhu Zhu, Zhu Zhu, Jiping Liu, Mirong Song, Mirong Song, Shaoyin Wang, Shaoyin Wang, Yongyun Hu   +7 more
doaj   +1 more source

Modelled realistic daily variation in low winter sea-ice concentration over the Barents Sea amplifies Asian cold events

Polar Research, 2022
The boreal wintertime atmospheric responses, especially cold events over central Asia, to low sea-ice concentration (SIC) with and without realistic daily variation over the Barents Sea are explored with the Community Atmosphere Model version 4.0 (CAM4.0)
Shengni Duan, Zhina Jiang, Min Wen
doaj   +1 more source

Can Arctic Sea Ice Influence the Extremely Cold Days and Nights in Winter over the Tibetan Plateau?

Atmosphere, 2022
The Arctic, Antarctic, and Tibetan Plateau (TP) are the northernmost, the southernmost, and the highest places of the Earth, respectively, known as Earth’s “three poles”.
Yang Jiao, Yuqing Zhang, Peng Hu
doaj   +1 more source

A Community Atmosphere Model With Superparameterized Clouds [PDF]

Eos, Transactions American Geophysical Union, 2013
Simulations by climate models are used to project the climate change expected as atmospheric greenhouse gas concentrations rise. How much will the Earth warm? Will south Asia experience stronger monsoons in the future? Will the American Southwest continue to desiccate? How soon will the Arctic become ice free? How fast and how much will sea level rise?
David Randall, Mark Branson, Minghuai Wang, Steven Ghan, Cheryl Craig, Andrew Gettelman, James Edwards   +6 more
openaire   +1 more source

Global Microphysical Sensitivity of Superparameterized Precipitation Extremes

Earth and Space Science, 2021
A recent study found statistically significant differences in extreme precipitation distributions over the contiguous United States (CONUS) when changing the microphysics scheme in a superparameterized global climate model.
Alexander B. Charn, William D. Collins, Hossein Parishani, Mark D. Risser   +3 more
doaj   +1 more source

Climate, Variability, and Climate Sensitivity of “Middle Atmosphere” Chemistry Configurations of the Community Earth System Model Version 2, Whole Atmosphere Community Climate Model Version 6 (CESM2(WACCM6))

Journal of Advances in Modeling Earth Systems, 2023
Simulating whole atmosphere dynamics, chemistry, and physics is computationally expensive. It can require high vertical resolution throughout the middle and upper atmosphere, as well as a comprehensive chemistry and aerosol scheme coupled to radiation ...
N. A. Davis, D. Visioni, R. R. Garcia, D. E. Kinnison, D. R. Marsh, M. Mills, J. H. Richter, S. Tilmes, C. G. Bardeen, A. Gettelman, A. A. Glanville, D. G. MacMartin, A. K. Smith, F. Vitt   +13 more
doaj   +1 more source

Uncertainty Analysis of Remote Sensing Underlying Surface in Land–Atmosphere Interaction Simulated Using Land Surface Models

Atmosphere, 2023
This paper reports a comparative experiment using remote sensing underlying surface data (ESACCI) and Community Land Model underlying surface data (CLM_LS) to analyze the uncertainty of land surface types in land–atmosphere interaction.
Xiaolu Ling, Hao Gao, Jian Gao, Wenhao Liu, Zeyu Tang   +4 more
doaj   +1 more source