Precipitation as adverse climatic phenomenon in Negotin

Abstract

Climatology is traditionally connected to different conditions of the atmosphere. However, many occurrences appear from time to time. Those occurrences are defined as extreme. Nowadays it is important to study extreme occurrences for every geographical area. In this paper we have investigated one segment of extreme climatic conditions in Eastern part of Serbia - adverse characteristics of precipitation. Data for Negotin were analyzed, as a representative of the climate in this area. Extreme values of precipitation in one place were taken as dangerous occurrences. We have calculated thresholds above which we consider daily amount of precipitation as dangerous. Thresholds for dangerous lengths of rainy and droughty periods were calculated, too.

Klimatologija se tradicionalno vezuje za najčešće pojavljivana stanja atmosfere. Međutim, mnogi događaji se pojavljuju samo povremeno u vremenu i prostoru. Oni nose pridev ekstremnih. Danas je postalo važno da se za svaku geografsku oblast prouče ekstremni događaji. U ovom radu ispitan je jedan segment ekstremnih klimatskih uslova u Istočnoj Srbiji -nepovoljne karakteristike padavina. Analizirani su podaci za Negotin, koji je predstavnik klime te oblasti. Uzeto je da ekstremne vrednosti padavina u jednom mestu predstavljaju opasnu pojavu. Izračunati su pragovi iznad kojih dnevnu količinu padavina smatramo opasnom pojavom, zatim pragovi za opasne dužine kišnih i sušnih perioda.