Results 1 to 10 of about 13,260 (259)

Detrainment in deep convection [PDF]

open access: yesGeophysical Research Letters, 2012
This study explores the mechanisms that determine detrainment in deep cumulus convection. A set of 90 high‐resolution Large Eddy Simulations is used to systematically explore the sensitivity of continental deep convection to the relative humidity and ...
S. J. Böing   +3 more
doaj   +5 more sources

Divergent convective outflow in ICON deep-convection-permitting and parameterised deep convection simulations [PDF]

open access: yesWeather and Climate Dynamics, 2023
Upper-tropospheric deep convective outflows during an event on 10–11 June 2019 over central Europe are analysed in ensembles of the operational Icosahedral Nonhydrostatic (ICON) numerical weather prediction model.
E. Groot   +4 more
doaj   +6 more sources

Simulating deep convection with a shallow convection scheme [PDF]

open access: yesAtmospheric Chemistry and Physics, 2011
Convective processes profoundly affect the global water and energy balance of our planet but remain a challenge for global climate modeling. Here we develop and investigate the suitability of a unified convection scheme, capable of handling both shallow ...
C. Hohenegger, C. S. Bretherton
doaj   +5 more sources

Weakening of the AMOC and strengthening of Labrador Sea deep convection in response to external freshwater forcing [PDF]

open access: yesNature Communications
The Atlantic Meridional Overturning Circulation (AMOC) is a key player in climate. Here, we employ an ensemble of water hosing experiments to examine mechanisms of AMOC weakening and its subsequent impact on the Labrador Sea open-ocean deep convection ...
Xinyue Wei, Rong Zhang
doaj   +2 more sources

Evaluation of Machine Learning Classifiers for Predicting Deep Convection

open access: yesJournal of Advances in Modeling Earth Systems, 2019
The realistic representation of convection in atmospheric models is paramount for skillful predictions of hazardous weather as well as climate, yet climate models especially suffer from large uncertainties in the parameterization of clouds and convection.
Peter Ukkonen, Antti Mäkelä
doaj   +2 more sources

Conditions for convective deep inflow

open access: yesGeophysical Research Letters, 2022
Observations and cloud-resolving simulations suggest that a convective updraft structure drawing mass from a deep lower-tropospheric layer occurs over a wide range of conditions. This occurs for both mesoscale convective systems (MCSs) and less-organized convection, raising the question: Is there a simple, universal characteristic governing the deep ...
Yi‐Hung Kuo, J. David Neelin
openaire   +1 more source

A large-eddy simulation study of deep-convection initiation through the collision of two sea-breeze fronts [PDF]

open access: yesAtmospheric Chemistry and Physics, 2021
Deep convection plays important roles in producing severe weather and regulating the large-scale circulation. However, deep-convection initiation (DCI), which determines when and where deep convection develops, has not yet been fully understood.
S. Fu   +5 more
doaj   +1 more source

Increasing vertical mixing to reduce Southern Ocean deep convection in NEMO3.4 [PDF]

open access: yesGeoscientific Model Development, 2015
Most CMIP5 (Coupled Model Intercomparison Project Phase 5) models unrealistically form Antarctic Bottom Water by open ocean deep convection in the Weddell and Ross seas.
C. Heuzé   +4 more
doaj   +1 more source

Diabatic processes modulating the vertical structure of the jet stream above the cold front of an extratropical cyclone: sensitivity to deep convection schemes [PDF]

open access: yesWeather and Climate Dynamics, 2022
The effect of deep convection parameterisation on the jet stream above the cold front of an explosive extratropical cyclone is investigated in the global numerical weather prediction model ARPEGE, operational at Météo-France.
M. Wimmer   +8 more
doaj   +1 more source

Differences in Tropical Rainfall in Aquaplanet Simulations With Resolved or Parameterized Deep Convection

open access: yesJournal of Advances in Modeling Earth Systems, 2022
This study investigates the effects of resolved deep convection on tropical rainfall and its multi‐scale variability. A series of aquaplanet simulations are analyzed using the Model for Prediction Across Scales‐Atmosphere with horizontal cell spacings ...
Rosimar Rios‐Berrios   +4 more
doaj   +1 more source

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