Results 21 to 30 of about 138,511 (294)

Conditions for convective deep inflow

Geophysical Research Letters, 2022
AbstractObservations 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
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]

Atmospheric 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, S. Fu, R. Rotunno, J. Chen, X. Deng, H. Xue   +5 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]

Weather 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, M. Wimmer, G. Rivière, P. Arbogast, J.-M. Piriou, J. Delanoë, C. Labadie, Q. Cazenave, J. Pelon   +8 more
doaj   +1 more source

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

Journal 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, George H. Bryan, Brian Medeiros, Falko Judt, Wei Wang   +4 more
doaj   +1 more source

Linking Deep and Shallow Convective Mass Fluxes via an Assumed Entrainment Distribution in CAM5‐CLUBB: Parameterization and Simulated Precipitation Variability

Journal of Advances in Modeling Earth Systems, 2021
We modify the Zhang‐McFarlane (ZM) deep convection scheme in the Community Atmosphere Model version 5 to couple it with a unified parameterization for boundary‐layer turbulence and shallow convection, that is, Cloud Layers Unified by Binormals (CLUBB ...
Ben Yang, Minghuai Wang, Guang J. Zhang, Zhun Guo, Anning Huang, Yaocun Zhang, Yun Qian   +6 more
doaj   +1 more source

Deep Convection Along the Continental Slope in the East/Japan Sea: A Large-Eddy Simulation Study

Frontiers in Marine Science, 2022
Sparse observations in the East/Japan Sea (EJS) suggested that open-ocean deep convection occurs south of Vladivostok; however, more recent observations suggest that deep convection occurs along the continental slope, resulting in bottom water formation ...
Bong-Gwan Kim, Yang-Ki Cho, Yign Noh
doaj   +1 more source

A Baseline for Global Weather and Climate Simulations at 1 km Resolution

Journal of Advances in Modeling Earth Systems, 2020
In an attempt to advance the understanding of the Earth's weather and climate by representing deep convection explicitly, we present a global, four‐month simulation (November 2018 to February 2019) with ECMWF's hydrostatic Integrated Forecasting System ...
Nils P. Wedi, Inna Polichtchouk, Peter Dueben, Valentine G. Anantharaj, Peter Bauer, Souhail Boussetta, Philip Browne, Willem Deconinck, Wayne Gaudin, Ioan Hadade, Sam Hatfield, Olivier Iffrig, Philippe Lopez, Pedro Maciel, Andreas Mueller, Sami Saarinen, Irina Sandu, Tiago Quintino, Frederic Vitart   +18 more
doaj   +1 more source

Identifying the Deep‐Inflow Mixing Features in Orographically‐Locked Diurnal Convection

Geophysical Research Letters, 2023
Orographically‐locked diurnal convection involves interactions between local circulation and the thermodynamic environment of convection. Here, the relationships of convective updraft structures over orographic precipitation hotspots and their upstream ...
Yu‐Hung Chang, Wei‐Ting Chen, Chien‐Ming Wu, Yi‐Hung Kuo, J. David Neelin   +4 more
doaj   +1 more source

Parameterizing deep convection using the assumed probability density function method [PDF]

Geoscientific Model Development, 2015
Due to their coarse horizontal resolution, present-day climate models must parameterize deep convection. This paper presents single-column simulations of deep convection using a probability density function (PDF) parameterization.
R. L. Storer, B. M. Griffin, J. Höft, J. K. Weber, E. Raut, V. E. Larson, M. Wang, P. J. Rasch   +7 more
doaj   +1 more source

The Impact of MJO, Kelvin, and Equatorial Rossby Waves on the Diurnal Cycle over the Maritime Continent

Atmosphere, 2020
The impacts of the Madden–Julian Oscillation (MJO), Kelvin waves, and Equatorial Rossby (ER) waves on the diurnal cycle of rainfall and types of deep convection over the Maritime Continent are investigated using rainfall from the Tropical Rainfall ...
Lakemariam Y. Worku, Ademe Mekonnen, Carl J. Schreck   +2 more
doaj   +1 more source