Dynamics and model representation of two contrasting extreme precipitation events in the Sahel
Quarterly Journal of the Royal Meteorological Society, EarlyView.Hovmöller diagrams of the two investigated extreme precipitation events in Mali are shown for (i) IMERG observations, and ICOsahedral Nonhydrostatic model (ICON) runs with parameterization of explicit convection (ii) enabled and (iii) disabled. This work highlights that the commonly perceived benefit of using explicit convection in a state‐of‐the‐art ...
Souleymane Sanogo +4 more
wiley +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.Long‐term disdrometer observations are utilized to derive Z–R relationships for ‐the Western Pacific tropical cyclones. A hybrid moment‐based approach is employed to determine the interrelationships among pairs of gamma distribution parameters. Enhanced estimates of rainfall rate and slope parameter are obtained using machine‐learning techniques ...
Jayalakshmi Janapati +5 more
wiley +1 more source
Environmental Impact of Silicic Magmatism in Large Igneous Province Events
Geophysical Monograph Series, Page 133-151., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Scott E. Bryan
wiley +1 more source
How well do high resolution models reproduce tropical convection? [PDF]
, 2009 Cascade is a multi-institution project studying the temporal and spatial organization of tropical convective systems. While cloud resolving numerical models can reproduce the observed diurnal cycle of such systems they are sensitive to the chosen ...
Allan, R.P. +3 more
core
Moist Convection and the Thermal Stratification of the Extratropical Troposphere [PDF]
, 2008 Simulations with an aquaplanet general circulation model show that sensible and latent heat transport by large-scale eddies influences the extratropical thermal stratification over a wide range of climates, even in relatively warm climates with small ...
O'Gorman, Paul A., Schneider, Tapio
core +1 more source
The Anatomy of a Continental Tropical Convective Storm
Journal of the Atmospheric Sciences, 2003 Abstract This study provides a very clear picture of the microphysics and flow field in a convective storm in the Rondonia region of Brazil through a synthesis of observations from two unique radars, measurements of the surface drop size distribution (DSD), and particle types and sizes from an aircraft penetration.
David Atlas, Christopher R. Williams
openaire +1 more source
The Nontraditional Coriolis Terms and Tropical Convective Clouds
Journal of the Atmospheric Sciences, 2020 AbstractThe full, three-dimensional Coriolis force includes the familiar sine-of-latitude terms as well as frequently dropped cosine-of-latitude terms [nontraditional Coriolis terms (NCT)]. The latter are often ignored because they couple the zonal and vertical momentum equations that in the large-scale limit of weak vertical velocity are considered ...
Igel, Matthew R, Biello, Joseph A
openaire +3 more sources
Impact of small‐scale gravity waves on tracer transport
Quarterly Journal of the Royal Meteorological Society, EarlyView.We extend a gravity wave (GW) parametrization to calculate the tracer transport due to the GW–Stokes drift and next‐order effects, where the approach is validated by comparing coarse‐resolution simulations with parametrized GWs to high‐resolution, wave‐resolving reference simulations.
Irmgard Knop +2 more
wiley +1 more source
Aerosol composition of the tropical upper troposphere [PDF]
Atmospheric Chemistry and Physics, 2009 Aerosol composition was measured by the NOAA single-particle mass spectrometer (PALMS) aboard the NASA WB-57 high altitude aircraft platform during two Aura Validation Experiment (AVE) campaigns based in Costa Rica in 2004 and 2006. These studies yielded
K. D. Froyd +6 more
doaj
Stronger zonal convective clustering associated with a wider tropical rain belt
Nature Communications, 2019 How the spatial patterns of deep convection affect the large-scale dynamics of the atmosphere remains an open question. Here, it is shown that if convection along the equator is clustered, the tropical rain belt widens and exhibits a double peak ...
Max Popp, Sandrine Bony
doaj +1 more source