Abstract:
The research's fundamental theme is the study of the relationship between breeze fronts and
extreme precipitation in Salvador (BA), going through its genesis and constitution. In this
context, the general objective of this dissertation is to investigate the influence of breeze fronts
on the genesis of extreme precipitation events and episodes in the city of Salvador (BA). To this
end, the following specific objectives were listed: a) Carry out a climatic characterization of the
study area; b) Promote a discussion about what constitutes a breeze front and its differentiation
from cold fronts; c) Study the relationship between breeze fronts and rainfall production on days
of extreme events.
The climatology of extreme events in cities such as Salvador (BA) presents itself as an important
aspect for climate geography, due to the material character given to it when excessive rainfall -
or not - triggers impacts in space. In view of this, its genesis, and the nuances contained within it,
has been an increasingly effervescent subject as an object of study in academia, as well as in
public debate, due to the entire context intertwined in the scenario of climate change and the
consequent , growing media appeal around this theme.
Thus, in order to meet the aforementioned criteria and objectives, the methodological processes
were the collection of precipitation data from CEMADEN, from 2014 to 2020, on a daily and
monthly basis. With this, the performance of percentile techniques to define the extremes.
However, satellite images of the GOES visible channel were also used to identify and
differentiate atmospheric systems, as well as to designate the participation of breeze fronts on
days of extreme events and episodes, through this synoptic analysis systematized to meet the
dynamics of the climate in its usual succession and rhythm. (Monteiro, 1971 and Sorre, 1951)).
Finally, correlation techniques were also used to investigate how teleconnections impact this
breeze-precipitation front dynamic.
