Variability of Precipitation in Oltenia

Abstract

Excess atmospheric precipitation is part of the category of climatic risk phenomena and is located at the opposite pole to the phenomena of dryness and drought (Octavia Bogdan, Ion Marinică, 2007). They are possible in any season of the year and can be determined by both rains and heavy snowfalls, produced mainly by cyclonic activity on the continent. Precipitation is one of the important factors that can compete with triggering the phenomena of dryness and drought, but also of excess humidity. The causes of excess precipitation are related to the dynamics of the atmosphere, but it can also be maintained by other factors that depend on the characteristics of the active surface. The precipitation deficit is characterized by precipitation that is below the values of daily averages and monthly averages (below normal values). A multitude of factors participate in the triggering of drought and dryness phenomena with the climatic parameters that define the state of dry and arid weather ( Ion Marinică, 2006).

Keywords

• oltenia
• precipitation
• moisture
• dryness
• drought