نتایج جستجو برای: thunderstorms are climatical phenomena

تعداد نتایج: 5137318  

2010
CHUNTAO LIU EARLE R. WILLIAMS EDWARD J. ZIPSER GARY BURNS

The long-standing mainstay of support for C. T. R. Wilson’s global circuit hypothesis is the similarity between the diurnal variation of thunderstorm days in universal time and the Carnegie curve of electrical potential gradient. This rough agreement has sustained the widespread view that thunderstorms are the ‘‘batteries’’ for the global electrical circuit. This study utilizes 10 years of Trop...

2003
Sutapa Chaudhuri Surajit Chattopadhyay

Instead of going into the physical detail of the pre-monsoon thunderstorms of north eastern India, a mathematical study has been done to discern the relative importance of some prominent surface parameters namely, surface temperature, relative humidity and air-pressure, in creating severe thunderstorms over the aforesaid region. The dataset associated with this weather phenomenon has been explo...

2011
Paolo Davini Renzo Bechini Roberto Cremonini

Thunderstorms may cause large damages to infrastructures and population, therefore the possible identification of the areas with the highest occurrence of these events is especially relevant. Nevertheless, few extensive studies of these phenomena with high spatial and temporal resolution have been carried out in the Alps and none of them includes North-western Italy. To analyze thunderstorm eve...

2006
Stanislaw Moszkowicz Zdzislaw Dziewit Maciej Szewczykowski

Most of meteorological phenomena that have significant impact upon society and infrastructure – such as heavy precipitation, thunderstorms, lightning, hail, hurricanes and tornadoes are related to convection. Therefore their recognition and forecasting play major role in operational aspects of national weather services, especially in the regions where such phenomena constitute one of the major ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1391

the present study has tried to accomplish an analysis of margaret atwood’s novels oryx and crake, and the year of the flood in the light of posthuman and cyborg theories. considering posthumanism as a critical reading of some notions of humanism focus of which in this thesis has been identity, new definitions for humanity and human identity are formed. haraway’s cyborg, as one possible new figu...

Journal: :Miscellanea geographica 2022

Abstract The main objective of this research was to determine the synoptic and thermodynamic conditions accompanying development two severe thunderstorms that caused significant damage in Warsaw. storm events 17 June 4 September 2016 were analysed. Materials used included meteorological, aerological radar data, as well Fire Service interventions database. These data allowed for formation storms...

2014
Xin Yang Zhanqing Li

This study analyzes 15 years of Tropical Rainfall Measuring Mission (TRMM) satellite data, together with surface observations of thunderstorms and visibility, to study trends and relationships between aerosols and thunderstorms in southeast China. TRMM data used are from the lightning imaging sensor (LIS) and the precipitation radar (PR). Surface data are human-observed thunderstormoccurrence a...

Journal: :Epj Web of Conferences 2023

The Pierre Auger Observatory, designed to detect extensive air showers (EAS) generated by ultrahigh-energy cosmic rays, proved be a unique instrument study phenomena associated with atmospheric electricity: Terrestrial Gamma-ray Flashes (TGFs) and ELVES. TGFs are the most explosive events emitted thunderstorms have usually been observed spacecraft, but surface detector has collected morphology ...

Journal: :Chest 1999
H J Smit W L Devillé F M Schramel J M Schreurs T G Sutedja P E Postmus

STUDY AIMS To examine the influence of atmospheric pressure (AP) and temperature changes on the incidence of idiopathic spontaneous pneumothorax (SP). METHODS From December 1991 through November 1993, 115 consecutive SP cases were selected. Patients were included after being in Amsterdam at least 1 full day before contracting the SP. Differences in air temperature and AP (provided hourly by t...

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