Results 21 to 30 of about 2,949 (160)

Cloud-convection feedback in brown dwarfs atmosphere

The Astrophysical Journal, 2022
. IntroductionBrown dwarfs are object between giant planets and star in term of mass, numerous observations suggest active meteorology. A near-infrared brightness variability is observed among L and T dwarfs. Several atmospheric dynamics have been proposed, but the mechanisms remain unclear.
Maxence Lefèvre, Xianyu Tan, Elspeth K. H. Lee, R. T. Pierrehumbert   +3 more
openaire   +3 more sources

A Pathway for Northern Hemisphere Extratropical Cooling to Elicit a Tropical Response

Geophysical Research Letters, 2023
Previous studies have found that Northern Hemisphere aerosol‐like cooling induces a La Niña‐like response in the tropical Indo‐Pacific. Here, we explore how a coupled ocean‐atmosphere feedback pathway communicates and sustains this response.
Matthew T. Luongo, Shang‐Ping Xie, Ian Eisenman, Yen‐Ting Hwang, Hung‐Yi Tseng   +4 more
doaj   +1 more source

The Cloud Feedback Model Intercomparison Project (CFMIP) contribution to CMIP6 [PDF]

Geoscientific Model Development, 2017
The primary objective of CFMIP is to inform future assessments of cloud feedbacks through improved understanding of cloud–climate feedback mechanisms and better evaluation of cloud processes and cloud feedbacks in climate models.
M. J. Webb, T. Andrews, A. Bodas-Salcedo, S. Bony, C. S. Bretherton, R. Chadwick, H. Chepfer, H. Douville, P. Good, J. E. Kay, S. A. Klein, R. Marchand, B. Medeiros, A. P. Siebesma, C. B. Skinner, B. Stevens, G. Tselioudis, Y. Tsushima, M. Watanabe   +18 more
doaj   +1 more source

The Influence of Cloud Feedbacks on Equatorial Atlantic Variability [PDF]

Journal of Climate, 2015
Abstract Observations show that cloud feedback over the Namibian stratocumulus region is positive because cloud cover is anticorrelated with local sea surface temperature (SST) anomalies. Moreover, regressions of observed atmospheric fields on equatorial Atlantic SST anomalies indicate that cloud feedbacks over the Namibian stratocumulus
Bellomo K., Clement A. C., Mauritsen T., Radel G., Stevens B.   +4 more
openaire   +2 more sources

Marine low cloud sensitivity to an idealized climate change: The CGILS LES intercomparison

Journal of Advances in Modeling Earth Systems, 2013
Subtropical marine low cloud sensitivity to an idealized climate change is compared in six large‐eddy simulation (LES) models as part of CGILS. July cloud cover is simulated at three locations over the subtropical northeast Pacific Ocean, which are ...
Peter N. Blossey, Christopher S. Bretherton, Minghua Zhang, Anning Cheng, Satoshi Endo, Thijs Heus, Yangang Liu, Adrian P. Lock, Stephan R. deRoode, Kuan‐Man Xu   +9 more
doaj   +1 more source

FBNet: Feedback Network for Point Cloud Completion

, 2022
The rapid development of point cloud learning has driven point cloud completion into a new era. However, the information flows of most existing completion methods are solely feedforward, and high-level information is rarely reused to improve low-level feature learning. To this end, we propose a novel Feedback Network (FBNet) for point cloud completion,
Xuejun Yan, Hongyu Yan, Jingjing Wang 0005, Hang Du, Zhihong Wu, Di Xie, Shiliang Pu, Li Lu   +7 more
openaire   +2 more sources

On the relationship between low cloud variability and lower tropospheric stability in the Southeast Pacific [PDF]

Atmospheric Chemistry and Physics, 2011
In this study, we examine marine low cloud cover variability in the Southeast Pacific and its association with lower-tropospheric stability (LTS) across a spectrum of timescales. On both daily and interannual timescales, LTS and low cloud amount are very
F. Sun, A. Hall, X. Qu
doaj   +1 more source

Radiation feedback in dusty clouds [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2017
Abstract We have investigated the impact of photoionization and radiation pressure on a dusty star-forming cloud using one-dimensional radiation hydrodynamic simulations, which include absorption and re-emission of photons by dust. We find that, in a cloud of mass 105 M⊙ and radius 17 pc, the effect of radiation pressure is negligible
Ishiki, Shohei, Okamoto, Takashi
openaire   +3 more sources

Comparison of Clouds and Cloud Feedback between AMIP5 and AMIP6

Atmosphere, 2023
We examine the changes in clouds and cloud feedback between Phase 5 (AMIP5) and Phase 6 (AMIP6) of the Atmospheric Model Intercomparison Project. Each model is perturbed by uniformly increasing the sea surface temperature by 4 K. The simulated cloud fraction, the perturbed states and cloud radiative kernels are used to derive cloud feedback in the ...
Yuanchong Zhang, Zhonghai Jin, Matteo Ottaviani   +2 more
openaire   +2 more sources

Climate Models Underestimate Dynamic Cloud Feedbacks in the Tropics

Geophysical Research Letters, 2023
Cloud feedbacks are the leading cause of uncertainty in climate sensitivity. The complex coupling between clouds and the large‐scale circulation in the tropics contributes to this uncertainty.
P. G. Hill, C. E. Holloway, M. P. Byrne, F. H. Lambert, M. J. Webb   +4 more
doaj   +1 more source