Hailstorms are considered to be among the most devastating weather manifestations. The devastation encouraged operational hail suppression activities to be undertaken in many countries (e.g. Ćurić,1990;Dessens,1998).“Hail suppression project” in Serbia uses the anti-hail rockets to inject the silver iodide agent into the hail clouds (one rocket has 400 g of mixture with 10-20% of AgI agent). Th...

The objective of this study is to verify the importance of the capabilities of cloud computing services in managing and analyzing big data in business organizations because the rapid development in the use of information technology in general and network technology in particular, has led to the trend of many organizations to make their applications available for use via electronic platforms hos...

one of the most dazzling events in the atmosphere is lightning. during updrafts in the life cycle of cumulus clouds, collision of graupels and ice crystals in the presence of liquid water results in vertical separation of electrical charges and lightning. there are four types of lightening depending on the location of discharge. the first type is cloud-to-ground lightning or fork lightning that...

The electrostatic field in the space excited by a thunderstorm cloud reflects trend of spatial potential and has great influence on selection lightning discharge paths. Some studies have used an approximate method to calculate cloud, but error is still relatively large. In order improve computational accuracy, second-order solution electric obtained this paper using binomial expansion complex q...

Lightning-caused fires (LCFs) and fire environments influenced by thunderstorms are increasingly implicated in extreme wildfire events around the world, with devastating consequences to society environment. However, disaster potential inherent LCFs is often neglected, especially where regime determined mostly anthropogenic ignitions. Such disconnect between perceived risk actual illustrated Ibe...

In this paper we consider two different approaches for spatial stochastic modeling of thunderstorms. Thunderstorm cells are represented using germ-grain models from stochastic geometry, which are based on Cox or doubly-stochastic cluster processes. We present methods for the operational fitting of model parameters based on available point probabilities and thunderstorm records of past periods. ...

The fifth report issued by the Intergovernmental Panel on Climate Change forecasts that greenhouse gases will increase the global temperature as well as the frequency of extreme weather phenomena. An increasing body of evidence shows the occurrence of severe asthma epidemics during thunderstorms in the pollen season, in various geographical zones. The main hypotheses explaining association betw...

BACKGROUND The cell type(s) mediating the maternal influence on allergic disease in children remain unclear. We set out to define the relationship between maternal allergy and frequencies of cord blood (CB) basophils, and plasmacytoid dendritic cells (pDCs); to characterize surface-bound IgE and FcεRI expressions on these cells; and to investigate the association between maternal and CB serum I...

Intense thunderstorms produce rapid cloud updrafts and may be associated with a range of destructive weather events. An important ingredient in measures of the potential for intense thunderstorms is the convective available potential energy (CAPE). Climate models project increases in summertime mean CAPE in the tropics and subtropics in response to global warming, but the physical mechanisms re...