Results 221 to 230 of about 5,548 (262)

Statistics on Vertical Wind Shear over Oceans

Journal of Atmospheric and Oceanic Technology, 1984
Abstract Statistics on boundary layer vertical wind shear were gathered from rawinsonde soundings taken from three small islands and one weather ship. These soundings show a high correlation between surface and 1829 m altitude wind directions. Wind speeds also were vertically correlated except at one tropical station where the winds were light.
Donald P. Wylie, Barry B. Hinton, Kellie M. Millett   +2 more
openaire   +1 more source

THE ROLE OF VERTICAL AND HORIZONTAL WIND SHEAR IN THE DEVELOPMENT OF QUASI-TROPICAL CYCLONES

Meteorologiya i Gidrologiya, 2023
Cloud-resolving modeling has been implemented to investigate a lifecycle of two quasi-tropical cyclones (QTCs) over the Black and Mediterranean seas in September 2005 and 2018. The formation of the Mediterranean QTC under the influence of the PV streamer and the problems of predicting this phenomenon are considered.
R. B. Zaripov, V. N. Krupchatnikov, Yu. B. Pavlyukov   +2 more
openaire   +1 more source

Some Effects of Vertical Wind Shear on Thunderstorm Structure *

Bulletin of the American Meteorological Society, 1949
Observations of thunderclouds obtained with a 3-cm height-finding radar set are used to obtain a description of the vertical shear of thunderclouds. Several photographs are given which show the shearing of the radar clouds. A scattergram of wind shear plotted against echo shear is presented and shows that the two variables are related, with the former ...
Louis J. Battan, Horace R. Byers
openaire   +1 more source

Availability evaluation of wind farms considering the influence of vertical wind shear

Fifth Asia International Symposium on Mechatronics (AISM 2015), 2015
The probability distribution of wind speed and availability of wind farms are investigated considering the vertical wind shear. Wind speed at extended height (60 m) was generated from that of reference height (10 m) through the Power-law Process. The least square (LS) method, maximum likelihood estimation (MLE) method and modified method are used to ...
Q. Jin, M. Wu, Z.G. Fan, W. Ding
openaire   +1 more source

Effect of vertical wind shear on the growth of convective clouds

Quarterly Journal of the Royal Meteorological Society, 1967
AbstractThe relationship between vertical wind shear and the vertical extent of convective clouds is examined. In order to take into consideration the movement of the cloud, a ‘Relative Top Shear’ (RTS) is defined. Radar data and upper winds at some Indian stations in different seasons have been studied and a comparison made between RTS at different ...
N. S. Bhaskara Rao, M. V. Dekate
openaire   +1 more source

The effect of wind shear and vertical diffusion on horizontal dispersion

Quarterly Journal of the Royal Meteorological Society, 1965
AbstractFeatures of analytical solutions of atmospheric diffusion equations show that the effect of wind shear and vertical diffusion on horizontal dispersion is important at great distances. Methods of using an analogue or a digital computer to solve the equations for all but very short distances are described.
J. B. Tyldesley, C. E. Wallington
openaire   +1 more source

Climatology of Vertical Wind Shear over the Tropical Atlantic

Journal of Climate, 2006
Abstract The spatiotemporal variability of the 200–850-hPa vertical wind shear over the tropical Atlantic is examined for a period of 46 yr. This work extends and updates past studies by considering a longer data record as well as a tropospheric-deep measure of vertical wind shear.
Chris Thorncroft, Anantha R. Aiyyer
openaire   +1 more source

Vertical wind shear measurements in the lower stratosphere

Quarterly Journal of the Royal Meteorological Society, 1975
AbstractDuring two flight series of superpressure constant‐level balloons conducted in the lower stratosphere by the Laboratoire de Météorologie Dynamique, the vertical wind shear vector over 100 metres has been measured. It has been found from a record of almost two months that the r.m.s. wind shear is about 1·5 × 10−2s−1.
openaire   +1 more source

Effects of Vertical Wind Shear on the Predictability of Tropical Cyclones

Journal of the Atmospheric Sciences, 2013
Abstract Through cloud-resolving simulations, this study examines the effect of vertical wind shear and system-scale flow asymmetry on the predictability of tropical cyclone (TC) intensity during different stages of the TC life cycle.
Dandan Tao, Fuqing Zhang
openaire   +1 more source

Effects of Vertical Wind Shear on Tropical Cyclone Precipitation

Monthly Weather Review, 2010
Abstract The response of the precipitation field for tropical cyclones in relation to the surrounding environmental vertical wind shear has been investigated using ∼20 000 snapshots of passive-microwave satellite rain rates. Composites of mean rain rates, 95th percentile rain rates, and rain coverage were constructed to compare how the ...
Daniel J. Cecil, Matthew T. Wingo
openaire   +1 more source