Results 1 to 10 of about 1,252 (147)

A characterisation of Alpine mesocyclone occurrence [PDF]

open access: yesWeather and Climate Dynamics, 2021
This work presents a characterisation of mesocyclone occurrence and frequency in the Alpine region, as observed from the Swiss operational radar network; 5 years of radar data are processed with a thunderstorm detection and tracking algorithm and ...
M. Feldmann   +4 more
doaj   +3 more sources

Modelling the impact of polar mesoscale cyclones on ocean circulation [PDF]

open access: yesJournal of Geophysical Research: Oceans, 2008
Subsynoptic polar mesoscale cyclones (or mesocyclones) are underrepresented in atmospheric reanalysis data sets and are subgrid scale processes in most models used for seasonal or climate forecasting. This lack of representation, particularly over the Nordic Seas, has a significant impact on modeled ocean circulation due to a consequent underestimation
Alan Condron   +57 more
core   +3 more sources

In fluence parameters for a polar mesocyclone development

open access: yesMeteorologische Zeitschrift, 2005
Polar mesocyclones are small-scale, short-living phenomena in the Arctic and Antarctic. Their forecast is difficult due to a lack of knowledge of initial and boundary conditions. Idealised sensitivity studies are performed with the mesoscale atmosphere -
Silke Dierer   +1 more
doaj   +2 more sources

Detection and thermal description of medicanes from numerical simulation [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2014
Tropical-like cyclones rarely affect the Mediterranean region but they can produce strong winds and heavy precipitations. These warm-core cyclones, called MEDICANES (MEDIterranean hurriCANES), are small in size, develop over the sea and are infrequent ...
M. A. Picornell, J. Campins, A. Jansà
doaj   +6 more sources

Analysis of Dual Polarization Characteristics of Turbulent Structure from Hail Supercell Storms

open access: yesGaoyuan qixiang, 2023
Convective storms transmit momentum through turbulence, so it is important to understand the echo characteristics of turbulence structure in severe convective storms.Focusing on the velocity spectrum width above 5 m·s -1, the turbulent intensity of two ...
Juxiu WU   +3 more
doaj   +1 more source

Damage survey and radar characteristics of the 14th May 2021 Wuhan tornado in Hubei province

open access: yes暴雨灾害, 2022
On 14th May, 2021, around 20∶40 BT, a tornado occurred in Qianzishan, Caidian District, Wuhan City, Hubei Province. Based on detailed damage survey and comprehensive analysis of observation data, the results are obtained.
Cailing LI   +10 more
doaj   +1 more source

Remote Monitoring of Mediterranean Hurricanes Using Infrasound

open access: yesRemote Sensing, 2022
Mediterranean hurricanes, or medicanes, are tropical-like cyclones forming once or twice per year over the waters of the Mediterranean Sea. These mesocyclones pose a serious threat to coastal infrastructure and lives because of their strong winds and ...
Constantino Listowski   +9 more
doaj   +1 more source

Integrated Convective Characteristic Extraction Algorithm for Dual Polarization Radar: Description and Application to a Convective System

open access: yesRemote Sensing, 2023
To further enhance the application of dual-polarization radar in hail nowcasting, we develop an integrated convective characteristic extraction (ICCE) algorithm based on the storm cell identification and tracking (SCIT) algorithm using dual-polarization ...
Chao Wang, Chong Wu, Liping Liu
doaj   +1 more source

A Numerical Simulation of the “1907” Kaiyuan Tornado Weather Process in Liaoning, Northeast China

open access: yesAtmosphere, 2022
From 17:00 to 18:00 local standard time (LST) on 3 July 2019, a rare strong tornado occurred in Kaiyuan, Liaoning Province, northeast China. NCEP/NCAR 0.25° × 0.25° reanalysis data and WRF4.0 numerical prediction models were used to carry out the ...
Yiping Wang, Tong Wang, Pu Yang, Wei Xue
doaj   +1 more source

Analysis of supercell structure evolution and environmental characteristics of downburst in Guigang City of Guangxi On May 20, 2020

open access: yes暴雨灾害, 2022
Based on the conventional meteorological observation data, Doppler radar data and NCEP reanalysis data, we have conducted an analysis of the structural evolution and environmental characteristics of the downburst in Guigang on 20 May 2020, which was ...
Hong LIANG   +5 more
doaj   +1 more source

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