We extend the previously developed stochastic unified convection scheme (UNICON) for shallow convection to deep convection by parameterizing the impact of mesoscale organized flow on updraft properties.
Jihoon Shin, Jong‐Jin Baik
doaj +1 more source
Deep convective clouds at the tropopause [PDF]
Abstract. Data from the Atmospheric Infrared Sounder (AIRS) on the EOS Aqua spacecraft each day show tens of thousands of Cold Clouds (CC) in the tropical oceans with 10 μm window channel brightness temperatures colder than 225 K. These clouds represent a mix of cold anvil clouds and Deep Convective Clouds (DCC).
H. H. Aumann +2 more
openaire +4 more sources
Empirical evidence for deep convection being a major source of stratospheric ice clouds over North America [PDF]
Ice clouds in the lowermost stratosphere affect stratospheric water vapour and the Earth's radiation budget. The knowledge of its occurrence and driving forces is limited.
L. Zou +5 more
doaj +1 more source
Seasonal dynamics and annual budget of dissolved inorganic carbon in the northwestern Mediterranean deep-convection region [PDF]
Deep convection plays a key role in the circulation, thermodynamics, and biogeochemical cycles in the Mediterranean Sea, which is considered to be a hotspot of biodiversity and climate change.
C. Ulses +16 more
doaj +1 more source
Why did deep convection persist over four consecutive winters (2015–2018) southeast of Cape Farewell? [PDF]
After more than a decade of shallow convection, deep convection returned to the Irminger Sea in 2008 and occurred several times since then to reach exceptional convection depths (> 1500 m) in 2015 and 2016.
P. Zunino, H. Mercier, V. Thierry
doaj +1 more source
Influence of convective transport on tropospheric ozone and its precursors in a chemistry-climate model [PDF]
The impact of convection on tropospheric O3 and its precursors has been examined in a coupled chemistry-climate model. There are two ways that convection affects O3. First, convection affects O3 by vertical mixing of O3 itself.
Sanderson, M. G. +8 more
core +1 more source
Standard discontinuous Galerkin finite element solutions to convection-dominated convection–diffusion equations usually possess sharp layers but also exhibit large spurious oscillations.
Frerichs-Mihov, Derk +2 more
core +1 more source
Simulating model uncertainty of subgrid-scale processes by sampling model errors at convective scales [PDF]
Ideally, perturbation schemes in ensemble forecasts should be based on the statistical properties of the model errors. Often, however, the statistical properties of these model errors are unknown. In practice, the perturbations are pragmatically modelled
M. Van Ginderachter +6 more
doaj +1 more source
The Grell–Freitas (GF) convection parameterization: recent developments, extensions, and applications [PDF]
Recent developments and options in the GF (Grell and Freitas, 2014; Freitas et al., 2018) convection parameterization are presented. The parameterization has been expanded to a trimodal spectral size to simulate three convection modes: shallow, congestus,
S. R. Freitas +4 more
doaj +1 more source
Importance of the variability of hydrographic preconditioning for deep convection in the Gulf of Lion, NW Mediterranean [PDF]
We study the variability of hydrographic preconditioning defined as the heat and salt contents in the Ligurian Sea before convection. The stratification is found to reach a maximum in the intermediate layer in December, whose causes and consequences for ...
L. Grignon +3 more
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