Results 41 to 50 of about 1,744 (240)
Growth of Spread in Convection-Allowing and Convection-Parameterizing Ensembles
Weather and Forecasting, 2010 Abstract During the 2007 NOAA Hazardous Weather Testbed Spring Experiment, a 10-member 4-km grid-spacing Storm-Scale Ensemble Forecast (SSEF) system was run in real time to provide experimental severe weather forecasting guidance. Five SSEF system members used perturbed initial and lateral boundary conditions (ICs and LBCs) and mixed ...
Clark, Adam +3 more
openaire +3 more sources
Dependence of MJO Predictability on Convective Parameterizations [PDF]
Journal of Climate, 2020 AbstractThis study revisits MJO predictability based on the “perfect model” approach with a contemporary model. Experiments are performed to address the reasons for substantial uncertainties in current estimates of MJO predictability, with a focus on the influence of atmospheric convection parameterization.
Jieshun Zhu, Arun Kumar, Wanqiu Wang
openaire +1 more source
Advanced Materials Technologies, EarlyView.Halide perovskite solar cells are fabricated with self‐encapsulation by lamination between two glass substrates using rapid Joule heating, yielding a 99% reduction in lamination time compared to previous studies. An 18% efficient cell is laminated in 5 s, demonstrating the potential for scalable manufacturing. ABSTRACT Perovskite solar cells (PSCs) are
Oluka Okia +9 more
wiley +1 more source
Geophysical Research Letters, 2023 The responses of atmospheric kinetic energy (KE) spectra to three convective parameterizations (CPs) in global high‐resolution simulations are revealed. The results show that the KE spectra exhibit high sensitivity to the CPs, mainly at mesoscales in the
Zongheng Li, Jun Peng, Lifeng Zhang
doaj +1 more source
Suppressing Grid-Point Storms in a Numerical Forecasting Model
Atmosphere, 2021 The convective parameterization scheme of the Korean Integrated Model (KIM) is tentatively modified to suppress grid-point storms in the Western Pacific Ocean. The KIM v3.2.11 suffers from the numerical problem that grid-point storms degrade forecasts in
Seung-Bu Park, Ji-Young Han
doaj +1 more source
Importance of convective parameterization in ENSO predictions [PDF]
Geophysical Research Letters, 2017 AbstractThis letter explored the influence of atmospheric convection scheme on El Niño–Southern Oscillation (ENSO) predictions using a set of hindcast experiments. Specifically, a low‐resolution version of the Climate Forecast System version 2 is used for 12 month hindcasts starting from each April during 1982–2011.
Jieshun Zhu +5 more
openaire +1 more source
Scaling of Short‐Duration, Summer Rainfall Event Temporal Profiles With Warming Over Great Britain
International Journal of Climatology, EarlyView.Temperature scaling has been used to analyse the temporal profiles of short‐duration, summer rainfall events in Great Britain, for sub‐hourly observed and convection‐permitting climate model (CPM) data. Results show an increase with dewpoint temperature of event total rainfall depth, maximum intensity, concentration and front‐loading.
Alexandra Seawell +6 more
wiley +1 more source
Improving the Physical Basis for Updraft Dynamics in Deep Convection Parameterizations
Journal of Advances in Modeling Earth Systems, 2021 This article presents a new deep convective parameterization that determines cloud characteristics based on a specified cloud size distribution. The vertical profiles of cloud properties are determined by analytic equations, which formulate entrainment ...
J. M. Peters +3 more
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International Journal of Climatology, EarlyView.We downscale CanESM2 with the Regional Climate Model version 4 (20 km) and evaluate against 15 stations to derive monthly PET (Hargreaves–Samani) and SPEI for northeastern Iran (1990–2009, 2040–2059, 2080–2099). Results show robust PET increases and a shift toward more negative monthly SPEI—especially April–September—indicating earlier onset and longer
Nasrin Salehnia +6 more
wiley +1 more source