Results 11 to 20 of about 561 (213)

The impact of parametrized convection on cloud feedback [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015
We investigate the sensitivity of cloud feedbacks to the use of convective parametrizations by repeating the CMIP5/CFMIP-2 AMIP/AMIP + 4K uniform sea surface temperature perturbation experiments with 10 climate models which have had their convective parametrizations turned off.
Webb, Mark J., Lock, Adrian P., Bretherton, Christopher S., Bony, Sandrine, Cole, Jason N. S., Idelkadi, Abderrahmane, Kang, Sarah M., Koshiro, Tsuyoshi, Kawai, Hideaki, Ogura, Tomoo, Roehrig, Romain, Shin, Yechul, Mauritsen, Thorsten, Sherwood, Steven C., Vial, Jessica, Watanabe, Masahiro, Woelfle, Matthew D., Zhao, Ming   +17 more
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An underestimated negative cloud feedback from cloud lifetime changes

Nature Climate Change, 2021
As the atmosphere warms, part of the cloud population shifts from ice and mixed-phase (‘cold’) to liquid (‘warm’) clouds. Because warm clouds are more reflective and longer-lived, this phase change reduces the solar flux absorbed by the Earth and constitutes a negative radiative feedback.
Johannes Mülmenstädt, Marc Salzmann, Jennifer E. Kay, Mark D. Zelinka, Po-Lun Ma, Christine Nam, Jan Kretzschmar, Sabine Hörnig, Johannes Quaas   +8 more
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A cloud feedback emulator (CFE, version 1.0) for an intermediate complexity model [PDF]

Geoscientific Model Development, 2017
The dominant source of inter-model differences in comprehensive global climate models (GCMs) are cloud radiative effects on Earth's energy budget. Intermediate complexity models, while able to run more efficiently, often lack cloud feedbacks.
D. J. Ullman, A. Schmittner
doaj   +1 more source

Technical note: Recommendations for diagnosing cloud feedbacks and rapid cloud adjustments using cloud radiative kernels [PDF]

Atmospheric Chemistry and Physics
The cloud radiative kernel method is a popular approach to quantify cloud feedbacks and rapid cloud adjustments to increased CO2 concentrations and to partition contributions from changes in cloud amount, altitude, and optical depth.
M. D. Zelinka, L.-W. Chao, T. A. Myers, T. A. Myers, Y. Qin, S. A. Klein   +5 more
doaj   +1 more source

Molecular cloud evolution – V. Cloud destruction by stellar feedback [PDF]

Monthly Notices of the Royal Astronomical Society, 2013
We present a numerical study of the evolution of molecular clouds, from their formation by converging flows in the warm ISM, to their destruction by the ionizing feedback of the massive stars they form. We improve with respect to our previous simulations by including a different stellar-particle formation algorithm, which allows them to have masses ...
Colin, Pedro, Vazquez-Semadeni, Enrique, Gomez, Gilberto C.   +2 more
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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
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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
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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