Results 201 to 210 of about 4,307,750 (257)

Where numerical weather prediction meets large‐eddy simulations in a convective boundary layer during the FESSTVaL field experiment

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
We exploit the Field Experiment on Sub‐mesoscale Spatio‐Temporal Variability in Lindenberg (FESSTVaL) to compare the performance of an NWP model at sub‐km resolutions with a traditional LES model. Focusing on clear‐sky ABL turbulence (June 14), shallow convective clouds and surface radiation (June 27), and deep convective cold pools (June 29), we find ...
Mirjana Sakradzija   +8 more
wiley   +1 more source

Improving convection‐permitting all‐sky infrared radiance ensemble data assimilation through mitigating deleterious non‐Gaussian artifacts

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Ensemble Kalman filters (EnKFs) with quality control (QC) are commonly used in the data assimilation (DA) of all‐sky satellite‐sensed infrared radiance (IR) observations. However, the statistical assumptions underlying EnKFs and QC are violated in such DA.
Man‐Yau Chan
wiley   +1 more source

Scale interactions of deep convection in the Sahel: Exploring ring patterns in lagged cross‐correlations of rainfall

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Spatio‐temporal patterns in rainfall are evidence of scale interactions in convection in the West African Sahel. Radial normalization of two‐dimensional conditional probability maps reveals a ring‐like structure in rainfall probabilities surrounding previous rainfall.
James Bassford   +3 more
wiley   +1 more source

Evaluation of the WRF model for simulating deep convection and cold‐pool characteristics relevant to wind‐energy applications in Germany

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Deep convection and cold‐pool characteristics over Germany during July 2023 are investigated using Deutscher Wetterdienst (DWD) radar observations and a Weather Research and Forecasting (WRF) model simulation. The temporal evolution of convective cell features reveals a downward‐facing parabolic pattern in both WRF and observations, in terms of cell ...
Gerard Kilroy, Jeffrey D. Thayer
wiley   +1 more source

On the meridional asymmetry of the poleward‐displaced intertropical convergence zone

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
We analyze the complex, asymmetrical dynamical structure of the intertropical convergence zone (ITCZ) in the East Pacific and Atlantic basins, seen during boreal summer, using a global, coupled storm‐resolving simulation. The equatorial pressure gradients lead to the acceleration of southerlies, which decelerate when the zonal flow becomes westerly ...
Divya Sri Praturi, Bjorn Stevens
wiley   +1 more source

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