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Wind shear

About: Wind shear is a research topic. Over the lifetime, 8023 publications have been published within this topic receiving 185373 citations.


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Journal ArticleDOI
TL;DR: In this paper, a study on a possible solar wind interaction with the North AtlanticOscillation (NAO) is performed, and results are presented suggesting arelationship between the NAO index and the electric field strength E of the solar wind.
Abstract: A study on a possible solar wind interaction with the North AtlanticOscillation (NAO) is performed. Results are presented suggesting arelationship between the NAO index and the electric field strength E ofthe solar wind. A possible scenario for the suggested interaction isthat an electromagnetic disturbance is generated by the solar wind inthe global electric circuit of the ionosphere. This disturbance is thendynamically propagating downward through the atmosphere and subsequentlyinfluencing the large-scale pressure system in the North Atlanticregion. A relationship is also evident on longer time-scales when usingthe group sunspot number as a proxy for the solar wind. (Art. No. 1718)

87 citations

Journal ArticleDOI
TL;DR: In this paper, the authors used the equivalent electrical circuit method for the theoretical treatment of the local wind effects on the equatorial electrojet, and calculated the height structures of electric fields and currents that are generated by height-varying east-west winds in the electrojet region.
Abstract: Using the equivalent electrical circuit method for the theoretical treatment of the local wind effects on the equatorial electrojet, the height structures of electric fields and currents that are generated by height-varying east-west winds in the electrojet region have been calculated for theoretical model wind sturctures and for a variety of experimentally observed wind structures. The results bring out clearly the nature and extent of the local wind effects on the height and latitude structures of the equatorial electrojet. The more important conclusions of the present study are: (a) The vertical wind shears associated with tidal winds and gravity waves can generate significantly large electric fields and east-west currents in the equatorial electrojet (EEJ). (b) The wind-generated electric fields and currents are characterized by large height gradients, latitudinal gradients, and reversals of direction. (c) At the magnetic equator, wind-generated electric fields and currents are often small (10%–30%) in comparison with the eastward electric-field-generated polarization field and east-west currents around noon hours. (d) At geomagnetic latitudes of 3° and beyond the wind-generated currents and electric fields often exceed those caused by the eastward electric field. (e) Beyond 2° the neutral winds can drastically alter the intensity and latitudinal structure of the EEJ, depending upon the magnitude and height location of the wind shear. (f) The observed variabilities in the ‘width’ and latitude structure of the EEJ can arise from the effects of such east-west winds that have been observed experimentally.

87 citations

Journal ArticleDOI
TL;DR: In this paper, the authors present a block diagram of the joint airport weather studies program and a detailed review of the background leading to the development of the program is reviewed, including basic studies, aircraft performance, and detection and warning techniques used to develop fine scale structure of thunderstorm dynamics and kinematics in the vicinity of a major airport.
Abstract: A block diagram of the joint airport weather studies program is presented. Background leading to the development of the program is reviewed. Basic studies, aircraft performance, and detection and warning techniques used to develop fine scale structure of thunderstorm dynamics and kinematics in the vicinity of a major airport; effect of thunderstorm low level wind shear on aircraft performance; and development of real time testing of flow level wind shear detection and warning techniques and displays are described.

87 citations

Journal ArticleDOI
15 Nov 2007-Icarus
TL;DR: In this article, a simple force balance equation is applied to quantify the wind shear stress required for removal of glass spheres from a sand bed and the results agree well with observations of dust removal and wind speed measurements made by the NASA Viking landers at the martian surface.

87 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023155
2022347
2021165
2020157
2019187
2018165