Some considerations on the behavior of the agricultural drought in the cuban agriculture and the use of satellite images in its evaluation

Abstract

The agricultural drought has been classified
as a “Silent disaster” that causes considerable impacts in the
agricultural systems: in cultivations, grassland, livestock, soils
dedicated to the production, etc. But not only in the agriculture,
this also caused negative effects in the population, the economy
and the environment. Their fundamental causes are given by the
shortage of atmospheric humidity, the inadequacy of generating
systems of rain or the persistence of a strong subsidence, or,
to the combination of some of these factors whose should be
studied in the context of the atmosphere general circulation.
In Cuba, different events of droughts have taken place during
long time that have been affected territories of almost the
whole country causing millionaire losses for the impact in
the agricultural production and environmental ecosystems,
reason for which becomes necessary to know and to study the
causes, the behavior and consequences of such phenomena,
in order to create policies and confrontation strategies and
early warning with a view to reduce and to mitigate their
impacts and to guarantee the environmental sostenibility and
the alimentary security. Given this background, the present
work has the aim to show the state of this topic art through
a series of aspects allow to characterize the behavior of this
hydrometeorological phenomenon in our country and to
international scale, highlighting the use of satellite images in
its evaluation which constitutes an effective technological tool
for its study and evaluation.