NEW CLIMATE INDICES IN ESTIMATION OF REGIONAL CLIMATE’S VARIABILITY

Abstract

The specifics of climatic variability in recent decades, expressed by the frequent alternations of cold-hot and wet-dry periods, led to the author's elaboration of two climatic indices with the aim of highlighting the spatio-temporal features of regional climate manifestation. Given that excessive precipitations are becoming a more frequent phenomenon on the territory of the republic, the identification of the vulnerable areas and their devastated character is of particular interest, especially in the decision making for soils’ erosion processes. Nedealcov’s Rainfall Excess Danger Index (IPP), with the appropriate rainfall classes and the Thermal Variability Index (IVT) Thermal Singularities Variability Index (IVST) with the corresponding ratings is useful for this purpose. The development of digital maps and the temporal estimations obtained from these indices demonstrate their usefulness in identification of the variability of the regional climate, largely determined by global climate change.

Keywords

• thermal variability index
• thermal singularities variability index
• rainfall excess danger index
• wet-dry periods
• cold-hot periods
• climate change
• climate variability