Results 61 to 70 of about 71,507 (288)

The Error is the Feature: how to Forecast Lightning using a Model Prediction Error

, 2019
Despite the progress within the last decades, weather forecasting is still a challenging and computationally expensive task. Current satellite-based approaches to predict thunderstorms are usually based on the analysis of the observed brightness ...
Andersson T., Bott Andreas, Ernst Ludwig Planck Max Karl, Lang P, Ruiz Anne, Veillette Mark S., Williams John K., Zach Christopher   +7 more
core   +1 more source

Observations of narrow bipolar events reveal how lightning is initiated in thunderstorms

Nature Communications, 2016
A long-standing but fundamental question in lightning studies concerns how lightning is initiated inside storms, given the absence of physical conductors.
W. Rison, P. Krehbiel, M. Stock, H. Edens, X. Shao, R. Thomas, M. Stanley, Yang Zhang   +7 more
semanticscholar   +1 more source

Performance evaluation of regional weather predictions with the Model for Prediction Across Scales – Atmosphere (MPAS‐A) over the Maritime Continent

Quarterly Journal of the Royal Meteorological Society, EarlyView.
As part of the ongoing efforts to develop next‐generation forecasting systems at the Meteorological Service Singapore, this study presents the setup and evaluation of the SINGV_NG(MPAS) system. Overall, the SINGV_NG(MPAS) system outperforms European Centre for Medium‐Range Weather Forecasts (ECMWF) deterministic forecasts in capturing heavy rainfall ...
I‐Han Chen, Pratiman Patel, Kalli Furtado, Wei Wang, Zhiquan Liu, Dale Barker, Jimy Dudhia, Hugh Zhang   +7 more
wiley   +1 more source

Increasing extent and intensity of thunderstorms observed over the Congo Basin from 1982 to 2016

Atmospheric research, 2018
Recent studies found a long-term drought and resulting declines in vegetation greenness and canopy water content over the Congo Basin, the second largest rainforest in the world after the Amazon.
A. Raghavendra, Liming Zhou, Yan Jiang, W. Hua   +3 more
semanticscholar   +1 more source

The characteristics of squall lines in the Southeast Asia region

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Squall lines over the Maritime Continent were analysed using 20 years of IMERG GPM data and classified into four regional clusters. Significant regional differences were found in their size, intensity, lifespan, and propagation. Nighttime squall lines are primarily driven by the convergence of opposing offshore flows and the convergence of monsoonal ...
Jeong‐Yik Diong, Prince Xavier, Muhammad Firdaus Ammar Abdullah, Juliane Schwendike   +3 more
wiley   +1 more source

Sensitivity of a Bowing Mesoscale Convective System to Horizontal Grid Spacing in a Convection-Allowing Ensemble

Atmosphere, 2020
The bow echo, a mesoscale convective system (MCS) responsible for much hail and wind damage across the United States, is associated with poor skill in convection-allowing numerical model forecasts.
John R. Lawson, William A. Gallus, Corey K. Potvin   +2 more
doaj   +1 more source

Holes in Optical Lightning Flashes: Identifying Poorly Transmissive Clouds in Lightning Imager Data

Earth and Space Science, 2021
Space‐based optical lightning sensors including the lightning imaging sensor (LIS) and geostationary lightning mapper (GLM) are pixelated imagers that detect lightning as transient increases in cloud top illumination. Detection requires optical emissions
Michael Peterson
doaj   +1 more source

The mesospheric inversion layer and sprites

, 2009
The vertical structure of temperature observed by SABER (Sounding of Atmosphere using Broadband Emission Radiometry) aboard TIMED (Thermosphere, Ionosphere, Mesosphere Energetics and Dynamics) and sprites observations made during the Eurosprite 2003 to ...
Armstrong, Arnone, Barrington-Leigh, Bell, Boccippio, Brasseur, Chanrion, Christensen, Chu, Cummins, Devendraa Siingh, Dewan, Drüe, Enell, Fadnavis, Fadnavis, Fovell, Gardner, Gordillio-Vazquez, Haldoupis, Hauchecorne, Hauchecorne, Heavner, Huang, Krehbiel, Kumar, Leblanc, Leblanc, Lehtinen, Liu, Liu, Lyons, Lyons, Mazur, Meriwether, Meriwether, Meriwether, Mertens, Mika, Mlynczak, Neubert, Neubert, Neubert, Oberheide, Pasko, Picard, Picard, R. P. Singh, Rodger, Roussel-Dupre, S. Fadnavis, Sao Sabbas, Schmidlin, Schumann, Sentman, Sentman, Sica, Siingh, Siingh, Siingh, Singh, Singh, Soula, States, Swenson, Taranenko, Taylor, Thomas, Turnbull, Williams, Williams, Williams, Williams, Williams, Wilson, Wu   +75 more
core   +1 more source

NowPrecip 2: Precipitation nowcasting in the complex terrain of Switzerland. Part I: Methods

Quarterly Journal of the Royal Meteorological Society, EarlyView.
In this work we present the methods of the areal precipitation nowcasting system NowPrecip version 2. In this version a new methodology is introduced, which, although it shares philosophy and techniques with the original methodology of NowPrecip version 1, can be considered as distinct from that.
I. V. Sideris, A. Ntoumos, A. Berne, A. Hering, P. Juda, M. Boscacci, L. Clementi, U. Germann   +7 more
wiley   +1 more source

Advances towards the development of a cloud-resolving model in South Africa

South African Journal of Science, 2014
Recent advances in supercomputing have made feasible the numerical integration of high-resolution cloud-resolving models (CRMs). CRMs are being used increasingly for high-resolution operational numerical weather prediction and for research purposes.
Mary-Jane M. Bopape, Francois A. Engelbrecht, David A. Randall, Willem A. Landman   +3 more
doaj   +1 more source