In the recent years we are witness of the permanent change in the climate. There a lot of regions victim of rainfalls and fires caused undesired landslides, defoliation and destruction of the landscapes. These phenomena pertain to climatologically destructive factors which have different manifestation during the seasons. Along with the progress of space technology, and the maturity of remote se...

One of the most adverse weather phenomena in Catalonia are thunderstorms producing severe weather phenomenon like heavy rainfalls, hail storms, or tornadoes. Sometimes, these thunderstorms seem to have marked paths although in some cases these trajectories vary sharply, changing completely the movement directions that have previously followed, either breaking into several cells, or joining into...

The study had the objective of assessing the seasonality of Aedes albopictus and the impact of environmental factors on breeding sites in a protected urban area. Immature individuals were collected through fluid aspiration from nine tree holes, in the Ecological Park of Tietê in the city of São Paulo, Southern Brazil, from 2001 to 2002. The index of positivity and number of individuals results ...

Forests are important interfaces between soil and atmosphere as they play a significant role in the water and gas exchanges (mainly O2 and CO2). Due to their capabilities in reducing evaporation from the surfaces and to intercept rainfalls, they are able to substantially modify the moisture behaviour of underneath soils. On the other hand, the moisture conditions of soils influence the evapotra...

Four biological aspects of Schizodon nasutus in the low Sorocaba river basin, São Paulo, Brazil were analysed. These were accomplished during the year seasons. The fish diet and the feeding activity were investigated by studying the repletion index, which showed no significant differences between seasons. The food items analysed by frequency of occurrence and dominance showed a predominance of ...

The 10 June 2000 event was the largest flash flood event that occurred in the Northeast of Spain in the late 20th century, both as regards its meteorological features and its considerable social impact. This paper focuses on analysis of the structures that produced the heavy rainfalls, especially from the point of view of meteorological radar. Due to the fact that this case is a good example of...