Results 131 to 140 of about 270 (169)
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Philosophy of Photography, 2023
Landscapes and atmospheric processes are rapidly changing, and so are the technologies we use to depict and detect them. How to ponder these transformations through artistic thinking and making? In the artwork On Thunderclouds, I examine the thundercloud as aesthetic motif, meteorological phenomenon, and as an ominous sign of climate change.
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Landscapes and atmospheric processes are rapidly changing, and so are the technologies we use to depict and detect them. How to ponder these transformations through artistic thinking and making? In the artwork On Thunderclouds, I examine the thundercloud as aesthetic motif, meteorological phenomenon, and as an ominous sign of climate change.
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A theory of thundercloud electricity
Proceedings of the Royal Society of London Series A, Mathematical and Physical Sciences, 1956Abstract The thundercloud is regarded as a great influence machine, the ionization currents associated with it being the agents by which its electromotive force is developed and maintained. The moving ions which constitute these currents may be intercepted by solid or liquid cloud elements so that it becomes possible for them to be ...
Charles Thomson Rees Wilson
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Fractal dynamics of electric discharges in a thundercloud
Physical Review E, 2003We have investigated the fractal dynamics of intracloud microdischarges responsible for the formation of a so-called drainage system of electric charge transport inside a cloud volume. Microdischarges are related to the nonlinear stage of multiflow instability development, which leads to the generation of a small-scale intracloud electric structure ...
D I, Iudin +2 more
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Gigantic jets between a thundercloud and the ionosphere
Nature, 2003Transient luminous events in the atmosphere, such as lighting-induced sprites and upwardly discharging blue jets, were discovered recently in the region between thunderclouds and the ionosphere. In the conventional picture, the main components of Earth's global electric circuit include thunderstorms, the conducting ionosphere, the downward fair-weather
H T, Su +8 more
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The distribution of electricity in thunderclouds
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1950Abstract The heights of the charges involved in the separate strokes of lightning flashes to ground have been estimated by five different methods. The results agree in showing that successive strokes tap progressively higher and higher regions of the cloud. The average height for first strokes is 3.7 km.
B. F. J. Schonland, D. J. Malan
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2011 XXXth URSI General Assembly and Scientific Symposium, 2011
We examine VHF and optical images of cloud-to-ground flashes to study IC leaders that propagated within thunderclouds and CG leaders that descended outside thunderclouds. It is shown that IC leaders developed smoothly and CG leaders propagated in a heavily branched manner.
Satoru Yoshida +4 more
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We examine VHF and optical images of cloud-to-ground flashes to study IC leaders that propagated within thunderclouds and CG leaders that descended outside thunderclouds. It is shown that IC leaders developed smoothly and CG leaders propagated in a heavily branched manner.
Satoru Yoshida +4 more
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2014
Almost everyone is familiar with cumulus clouds (Fig. 5.1a), which look like a piece of floating cotton, with a sharp outline and a flat bottom. When a growing cumulus resembles the head of a cauliflower, it is called a cumulus congestus (Fig. 5.1b).
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Almost everyone is familiar with cumulus clouds (Fig. 5.1a), which look like a piece of floating cotton, with a sharp outline and a flat bottom. When a growing cumulus resembles the head of a cauliflower, it is called a cumulus congestus (Fig. 5.1b).
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Autowave Regimes of Thundercloud Electrification
Radiophysics and Quantum Electronics, 2001We consider the evolution of the electric field and charge in a one-dimensional electrohydrodynamic (EHD) distributed-parameter system which serves as a simple model of a thundercloud. A diffusion equation for the electric field is proposed which, under reasonable assumptions on the nonlinear dependence of the dissipation current on the electric field (
E. A. Mareev, A. E. Sorokin
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Electric field growth in thunderclouds
Quarterly Journal of the Royal Meteorological Society, 1975AbstractWe have constructed a balloonâborne instrument for measuring the magnitude of the horizontal component of the electric field in thunderclouds. It consists of two hollow, copper spheres 15cm in diameter held 2cm apart. The spheres spin about an axis that can be described as the perpendicular bisector of the line segment between the centres of ...
WILLIAM P WINN, LG BYERLEY
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