The atmospheric global electric circuit: An overview

Siingh, Devendraa; Gopalakrishnan, V.; Singh, R. P.; Kamra, A. K.; Singh, Saurabh; Pant, Vimlesh; Singh, R. P.; Singh, Ashok K.

doi:10.1016/j.atmosres.2006.05.005

Cited by 107 publications

(59 citation statements)

References 133 publications

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“…Even lightning-generated whistler mode waves cause the precipitation of energetic electrons which may enhance the electrical conductivity locally (Singh et al 2004;Siingh et al 2005Siingh et al , 2007Siingh et al , 2008Rycroft et al 2007;Inan et al 1988Inan et al , 2007. Upward lightning discharges (sprites, elves, blue jets, blue starters and gigantic jets) from the top of a thundercloud to the lower ionosphere cause local electrical breakdown of the atmosphere and produce a transient and localized enhancement in conductivity in addition to that produced by precipitated energetic electrons (Inan et al 1988(Inan et al , 1996(Inan et al , 2007Singh et al 2005;Fadnavis et al 2009).…”

Section: Atmospheric Conductivity Lightning and Climatementioning

confidence: 90%

“…These may affect their microscopic/macroscopic processes and droplet formation related to clouds in the fair weather region, and may produce an integrated effect which could result into short term/long term variations in weather/climate (Tinsley 2000;Williams 2005;Price and Asfur 2006;Siingh et al 2007Siingh et al , 2008. The space charge created attaches to aerosol particles, cloud condensation nuclei (CCN) and ice forming nuclei (Tinsley et al 2001).…”

Section: Atmospheric Conductivity Lightning and Climatementioning

confidence: 98%

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Solar Activity, Lightning and Climate

Siingh

Singh

et al. 2011

Surv Geophys

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The physics of solar forcing of the climate and long term climate change is summarized, and the role of energetic charged particles (including cosmic rays) on cloud formation and their effect on climate is examined. It is considered that the cosmic raycloud cover hypothesis is not supported by presently available data and further investigations (during Forbush decreases and at other times) should be analyzed to further examine the hypothesis. Another player in climate is lightning through the production of NO x ; this greenhouse gas, water vapour in the troposphere (and stratosphere) and carbon dioxide influence the global temperature through different processes. The enhancement of aerosol concentrations and their distribution in the troposphere also affect the climate and may result in enhanced lightning activity. Finally, the roles of atmospheric conductivity on the electrical activity of thunderstorms and lightning discharges in relation to climate are discussed.

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Section: Atmospheric Conductivity Lightning and Climatementioning

confidence: 90%

Section: Atmospheric Conductivity Lightning and Climatementioning

confidence: 98%

Solar Activity, Lightning and Climate

Siingh

Singh

et al. 2011

Surv Geophys

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“…The solar wind interacting with the global atmospheric electric circuit leads to the well known auroral lights [15,16]. Additionally, the imprints formed by partially focusing ions in PBII can resemble light caustics originating in rippling water [17][18][19].…”

Section: Pbii Back Side Of Flat Substratementioning

confidence: 99%

Highly localized ion focusing effects in PBIID

Haberkorn

Todorova

Manova

et al. 2008

Phys. Status Solidi (c)

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Plasma Based Ion Implantation and Deposition (PBIID) is characterized by a complex interaction of a supersonic plasma flux, a plasma sheath expanding and receding on a timescale of microseconds and a substrate which can be of an arbitrary complex shape. It is shown that ions impinging on the substrate in the wake region consist of two groups with strongly differing incidence angles. At the same time, localized ion focusing is observed only for very long pulses of 50 µs and intermediate voltages of 2.5 – 3.5 kV, independent of the cathode material – Ti or Al – and the Ar background pressure. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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“…Reliable quantitative models of CR ionization are based on an analytical approximation of the atmospheric cascade (O'Brien 2005) and on a full Monte Carlo simulation of the atmospheric cascade, including all the secondaries (Desorgher et al 2005;Velinov and Mishev 2007). The additional ionization produced by GCRs enhances the conductivity of the lower atmosphere and hence may enhance the thunderstorm current which charges the global atmospheric electric circuit by facilitating enhanced charge transfer between the thunderstorms to the Earth (Singh et al 2004;Siingh et al 2007;Siingh and Singh 2010).…”

Section: Galactic Cosmic Raysmentioning

confidence: 99%

Space Weather: Physics, Effects and Predictability

2010

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The time varying conditions in the near-Earth space environment that may affect space-borne or ground-based technological systems and may endanger human health or life are referred to as space weather. Space weather effects arise from the dynamic and highly variable conditions in the geospace environment starting from explosive events on the Sun (solar flares), Coronal Mass Ejections near the Sun in the interplanetary medium, and various energetic effects in the magnetosphere-ionosphere-atmosphere system. As the utilization of space has become part of our everyday lives, and as our lives have become increasingly dependent on technological systems vulnerable to the space weather influences, the understanding and prediction of hazards posed by these active solar events have grown in importance. In this paper, we review the processes of the Sun-Earth interactions, the dynamic conditions within the magnetosphere, and the predictability of space weather effects on radio waves, satellites and ground-based technological systems today.

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The atmospheric global electric circuit: An overview

Cited by 107 publications

References 133 publications

Solar Activity, Lightning and Climate

Solar Activity, Lightning and Climate

Highly localized ion focusing effects in PBIID

Space Weather: Physics, Effects and Predictability

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