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negative cloud-to-ground lightning

Investigation of Zero Crossing Detection for First Return Stroke in Negative Cloud-to-Ground Lightning Flash

Investigation of Zero Crossing Detection for First Return Stroke in Negative Cloud-to-Ground Lightning Flash

... in negative cloud-to-ground lightning ...of lightning strike from the preliminary breakdown stages until the first return ...in negative cloud-to-ground was ...

7

The Characterization Of Negative Cloud-To-Ground Lightning Flashes In Malaysia Under The Influence Of Pollution

The Characterization Of Negative Cloud-To-Ground Lightning Flashes In Malaysia Under The Influence Of Pollution

... the lightning activity by providing highly negative charge at negative charge center ...conduct lightning measurement in Malaysia in order to investigate the impact of air pollution against ...

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Mathematical simulation of heat transfer at deciduous tree ignition by cloud-to-ground lightning discharge

Mathematical simulation of heat transfer at deciduous tree ignition by cloud-to-ground lightning discharge

... Abstract. Numerical research results of deciduous tree ignition by cloud-to-ground lightning discharge are presented. The problem is solved in one-dimensional statement in cylindrical system of ...

6

Implementation Of Digital Filter For Pre Processing Of Lightning Detection And Monitoring System

Implementation Of Digital Filter For Pre Processing Of Lightning Detection And Monitoring System

... Downward negative lightning flashes represent around 90% from an examination ...just negative cloud-to-ground lightning flashes as announced by numerous ...(counting ...

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Observing relationships between lightning and cloud profiles by means of a satellite-borne cloud radar

Observing relationships between lightning and cloud profiles by means of a satellite-borne cloud radar

... of cloud microphysical structure, in particular the ice water content, in this process is generally accepted and is confirmed by experimental stud- ies and numerical ...for cloud electrification (Mansell et ...

10

Cloud-to-ground lightning in Portugal: patterns and dynamical forcing

Cloud-to-ground lightning in Portugal: patterns and dynamical forcing

... CG lightning activity over the Portuguese mainland is analysed in the present ...whole, negative polarity is largely dominant over pos- itive polarity in the recorded ...both negative and positive ...

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Forcing factors of cloud-to-ground lightning over Iberia: regional-scale assessments

Forcing factors of cloud-to-ground lightning over Iberia: regional-scale assessments

... As lightning activity is physically related to deep convec- tion, significant relationships between the number of CGFs and convective activity, in particular its forcing factors, is ...of lightning activity ...

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Narrow Band Field Measurement Generated By Lightning Flashes

Narrow Band Field Measurement Generated By Lightning Flashes

... the negative on cloud to ground flashes produce by first return stroke based on the old researches experiments ...the lightning can be classified as broadband frequency in range of kHz to GHz ...

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Mathematical simulation of heat transfer at coniferous tree ignition by cloud-to-ground lightning discharge

Mathematical simulation of heat transfer at coniferous tree ignition by cloud-to-ground lightning discharge

... Abstract. Numerical simulation results of coniferous tree heating by cloud-to-ground lightning discharge are presented. Pine tree is under consideration. The problem is solved in one-dimensional ...

6

Atmospheric circulation patterns, cloud-to-ground lightning, and locally intense convective rainfall associated with debris flow initiation in the Dolomite Alps of northeastern Italy

Atmospheric circulation patterns, cloud-to-ground lightning, and locally intense convective rainfall associated with debris flow initiation in the Dolomite Alps of northeastern Italy

... At T-0 the trough over the eastern Atlantic began to fill, however a short-wave trough formed (dashed line) over the central portion of the continent at approximately 5–15 ◦ E (the area is shaded for emphasis in Fig. 4). ...

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Protection against lightning at a geomagnetic observatory

Protection against lightning at a geomagnetic observatory

... the cloud forms the first stepped leader stroke which progresses through the channel of ionized ...excessive negative charge the leader moves towards the opposing ...actual lightning stroke; it is a ...

7

Study of lightning ground flashes interaction with railway lines

Study of lightning ground flashes interaction with railway lines

... The lightning may affect almost every organ system as the current passes through the human body taking the shortest pathways between the contact ...of lightning strike occurrences for victims who took ...

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Modeling of the Stepping Process of Negative Lightning Stepped Leaders

Modeling of the Stepping Process of Negative Lightning Stepped Leaders

... the negative and positive tips of the space leader is assumed to be Q ns / q l where q l is the charge necessary to thermalize a unit length of the leader ...the negative and positive streamer bursts from ...

17

Gamma Rays in Association with the Rocket Triggered Lightning Caused by Neutron Bursts

Gamma Rays in Association with the Rocket Triggered Lightning Caused by Neutron Bursts

... in lightning channel, which are produced by the deuterium-deuterium (D-D) and deuterium-tritium (D-T) nuclear reactions, represent a plausible mechanism for gamma-ray bursts observed at ...from lightning ...

6

An overview of the lightning and atmospheric electricity observations collected in southern France during the HYdrological cycle in Mediterranean EXperiment (HyMeX), Special Observation Period 1

An overview of the lightning and atmospheric electricity observations collected in southern France during the HYdrological cycle in Mediterranean EXperiment (HyMeX), Special Observation Period 1

... from lightning-storm severity relationships, it is useful to review some available modeling tools to inves- tigate this ...3-D cloud resolving mod- els (CRM) including parameterizations of both electrifica- ...

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Electromagnetic Field Due to Lightning Strikes to Mountainous Ground

Electromagnetic Field Due to Lightning Strikes to Mountainous Ground

... to lightning strikes to mountainous ground are determined in this ...cone-shaped ground with finite conductivity is assumed to represent a natural nonflat ...

11

The impact of lightning on tropospheric ozone chemistry using a new global lightning parametrisation

The impact of lightning on tropospheric ozone chemistry using a new global lightning parametrisation

... the cloud-top height ...of lightning flash rates well but both perform poorly in the northern region (the ICEFLUX approach re- sults in a much lower ...on lightning activity in the region, as was ...

32

High power lasers and ecology of atmosphere (I)

High power lasers and ecology of atmosphere (I)

... the horizontal scales from ten to hundreds of kilometers, the convective systems, which serve as the important source of thunder- storm activity. Their characteristic feature is the presence of the united electrical ...

8

Modification of Conductive Material AA6101 of OPGW Conductors against Lightning Strikes Against to Lightning Strike

Modification of Conductive Material AA6101 of OPGW Conductors against Lightning Strikes Against to Lightning Strike

... the lightning test, two springs were installed at each end of the mechanical system, including the test ...the lightning current is ignited. The ground wire under test is symmetrically connected to ...

11

Using cloud ice flux to parametrise large-scale lightning

Using cloud ice flux to parametrise large-scale lightning

... The well-used lightning flash parametrisation based on cloud-top height has large biases but the derived annual total flash density has a better spatial correlation with the LIS observat[r] ...

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