Results 91 to 100 of about 3,898,669 (383)

Atmospheric Circulation of Eccentric Hot Jupiter HAT-P-2b [PDF]

, 2014
The hot-Jupiter HAT-P-2b has become a prime target for Spitzer Space Telescope observations aimed at understanding the atmospheric response of exoplanets on highly eccentric orbits. Here we present a suite of three-dimensional atmospheric circulation models for HAT-P-2b that investigate the effects of assumed atmospheric composition and rotation rate ...
arxiv   +1 more source

LGM Paleoclimate Constraints Inform Cloud Parameterizations and Equilibrium Climate Sensitivity in CESM2

Journal of Advances in Modeling Earth Systems, 2022
The Community Earth System Model version 2 (CESM2) simulates a high equilibrium climate sensitivity (ECS > 5°C) and a Last Glacial Maximum (LGM) that is substantially colder than proxy temperatures.
Jiang Zhu, Bette L. Otto‐Bliesner, Esther C. Brady, Andrew Gettelman, Julio T. Bacmeister, Richard B. Neale, Christopher J. Poulsen, Jonah K. Shaw, Zachary S. McGraw, Jennifer E. Kay   +9 more
doaj   +1 more source

Influence of the spatial distribution of gravity wave activity on the middle atmospheric dynamics

, 2016
. Analysing GPS radio occultation density profiles, we have recently pointed out a localised area of enhanced gravity wave (GW) activity and breaking in the lower stratosphere of the east Asian–northwestern Pacific (EA/NP) region.
P. Šácha, F. Lilienthal, C. Jacobi, P. Pišoft   +3 more
semanticscholar   +1 more source

Enhancing the Age‐Hardening Response of Laser Powder‐Bed Fusion WE43 Alloy through Microstructural Control

Advanced Engineering Materials, EarlyView.
Laser powder‐bed fusion (L‐PBF) can produce dense WE43 magnesium alloy parts, but their mechanical properties are limited by a nonhomogeneous microstructure. This study investigates the effects of varying direct aging (T5) and artificial age‐hardening (T6) conditions on microstructure and strength. Optimized T6 treatment significantly improves strength
Prathviraj Upadhyaya, Sinéad M. Uí Mhurchadha, Oliver J. McCarthy, Tríona Kennedy, Mert Celikin, Ramesh Raghavendra   +5 more
wiley   +1 more source

Chaotic and turbulent temperature fluctuations in atmospheric free convection [PDF]

arXiv, 2020
It is shown, using results of direct numerical simulations, laboratory experiments, measurements in the atmospheric boundary layer, satellite infrared radiances data, the planetary-scale surface-air and tropospheric data, that the temperature fluctuations in atmospheric free convection can be well described by the spatio-temporal distributed chaos ...
arxiv  

A Doubly Blended Model for Multiscale Atmospheric Dynamics

, 2016
The compressible flow equations for a moist, multi-component fluid constitute the most comprehensive description of atmospheric dynamics used in meteorological practice.
R. Klein, Tommaso Benacchio
semanticscholar   +1 more source

DYAMOND: the DYnamics of the Atmospheric general circulation Modeled On Non-hydrostatic Domains

Progress in Earth and Planetary Science, 2019
A review of the experimental protocol and motivation for DYAMOND, the first intercomparison project of global storm-resolving models, is presented. Nine models submitted simulation output for a 40-day (1 August–10 September 2016) intercomparison period ...
B. Stevens, M. Satoh, L. Auger, J. Biercamp, C. Bretherton, Xi Chen, P. Düben, F. Judt, M. Khairoutdinov, D. Klocke, C. Kodama, L. Kornblueh, Shian‐Jiann Lin, P. Neumann, William M. Putman, N. Röber, R. Shibuya, B. Vannière, P. Vidale, N. Wedi, Linjiong Zhou   +20 more
semanticscholar   +1 more source

A Study on Thermal Expansion and Thermomechanical Behavior of Composite Metal Foams

Advanced Engineering Materials, EarlyView.
The coefficient of thermal expansion of steel–steel composite metal foam (S‐S CMF) is shown to be lower than that of bulk stainless steel while its performance under compression demonstrate excellent mechanical stability and strength at all temperatures with gradualsoftening from 400 to 600 °C.
Zubin Chacko, Nigel Amoafo Yeboah, Afsaneh Rabiei   +2 more
wiley   +1 more source

Stochastic Dynamics of a Coupled Atmosphere--Ocean Model [PDF]

arXiv, 2004
The investigation of the coupled atmosphere-ocean system is not only scientifically challenging but also practically important. We consider a coupled atmosphere-ocean model, which involves hydrodynamics, thermodynamics, and random atmospheric dynamics due to short time influences at the air-sea interface.
arxiv  

New model ensemble reveals how forcing uncertainty and model structure alter climate simulated across CMIP generations of the Community Earth System Model [PDF]

Geoscientific Model Development
Climate simulation uncertainties arise from internal variability, model structure, and external forcings. Model intercomparisons (such as the Coupled Model Intercomparison Project; CMIP) and single-model large ensembles have provided insight into ...
M. M. Holland, C. Hannay, J. Fasullo, A. Jahn, A. Jahn, J. E. Kay, J. E. Kay, M. Mills, I. R. Simpson, W. Wieder, P. Lawrence, E. Kluzek, D. Bailey   +12 more
doaj   +1 more source