Results 1 to 10 of about 5,548 (262)

Effects of vertical wind shear on intensities of mesoscale convective systems over West and Central Africa

open access: yesAtmospheric Science Letters, 2022
Vertical wind shear is known to play a key role in the organization and intensity of mesoscale convective systems (MCSs) in West and Central Africa. A decadal increase in vertical wind shear has recently been linked to a decadal increase in intense MCSs ...
Michael Baidu   +3 more
doaj   +2 more sources

Estimation of wind misalignment and vertical shear from blade loads

open access: yesRenewable Energy, 2014
Abstract This paper describes the formulation and verification of a novel observer of wind parameters. The general idea behind the proposed approach is to consider the wind turbine rotor as an anemometer. In fact, the rotor responds to varying wind conditions; by properly interpreting this response, one can indirectly measure some desired wind ...
BOTTASSO, CARLO LUIGI, RIBOLDI, CARLO
exaly   +3 more sources

Environmental sensitivities of shallow-cumulus dilution – Part 2: Vertical wind profile [PDF]

open access: yesAtmospheric Chemistry and Physics, 2021
This second part of a numerical study on shallow-cumulus dilution focuses on the sensitivity of cloud dilution to changes in the vertical wind profile. Insights are obtained through large-eddy simulations of maritime and continental cloud fields.
S. Drueke, D. J. Kirshbaum, P. Kollias
doaj   +1 more source

On the occurrence of strong vertical wind shear in the tropopause region: a 10-year ERA5 northern hemispheric study [PDF]

open access: yesWeather and Climate Dynamics, 2021
A climatology of the occurrence of strong wind shear in the upper troposphere–lower stratosphere (UTLS) is presented, which gives rise to defining a tropopause shear layer (TSL).
T. Kaluza, D. Kunkel, P. Hoor
doaj   +1 more source

Heavy snowfall event over the Swiss Alps: did wind shear impact secondary ice production? [PDF]

open access: yesAtmospheric Chemistry and Physics, 2023
The change in wind direction and speed with height, referred to as vertical wind shear, causes enhanced turbulence in the atmosphere. As a result, there are enhanced interactions between ice particles that break up during collisions in clouds which could
Z. Dedekind   +3 more
doaj   +1 more source

Impact of Vertical Wind Shear on Summer Orographic Clouds over Tian Shan Mountains: A Case Study Based on Radar Observation and Numerical Simulation

open access: yesRemote Sensing, 2022
In this research, a summer orographic precipitation process that occurred over the Tian Shan Mountains on 27 July 2019, was investigated, focusing on the impact of vertical wind shear on clouds.
Jing Yang   +5 more
doaj   +1 more source

Observation and simulation study on the rapid intensification mechanism of Typhoon “Mekkhala” (2006)

open access: yesFrontiers in Earth Science, 2023
Based on Doppler Weather radar observations and numerical simulations applying the Weather Research and Forecasting (WRF) system, this study focused on the rapid intensification (RI) of Typhoon “Mekkhala” (2006) in the inshore area in 2020. The simulated
Dehua Chen   +17 more
doaj   +1 more source

The formation of sporadic E layers by a vortical perturbation excited in a horizontal wind shear flow [PDF]

open access: yesAnnales Geophysicae, 2008
The formation of the mid-latitude sporadic E layers (Es layers) by an atmospheric vortical perturbation excited in a horizontal shear flow (horizontal wind with a horizontal linear shear) is investigated.
G. G. Didebulidze, L. N. Lomidze
doaj   +1 more source

A Comparative Study of the Landfall Precipitation by Tropical Cyclones ARB 01 (2002) and Luban (2018) near the Arabian Peninsula

open access: yesRemote Sensing, 2022
Considering the high risk of flooding during tropical cyclones (TCs), there is great practical significance in researching and predicting precipitation during TC landfalls.
Yusheng Cui   +4 more
doaj   +1 more source

How Wind Shear Affects Trade‐wind Cumulus Convection

open access: yesJournal of Advances in Modeling Earth Systems, 2020
Motivated by an observed relationship between marine low cloud cover and surface wind speed, this study investigates how vertical wind shear affects trade‐wind cumulus convection, including shallow cumulus and congestus with tops below the freezing level.
K. C. Helfer   +3 more
doaj   +1 more source

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