Representative Basin Trebeș-Negel - Analysis of Air Temperature Variation.

Abstract

Located in the Eastern Carpathians area, the Trebeș-Negel Representative Basin represents an important hydrological objective at the Carpathian area level. It is used for research purposes and considered by Romanian Waters as representative and it is monitored since 1980. The information of the water and air temperature data has led to the consolidation of a significant database that can be used to analyze variations of water temperature influenced by air temperature which leads to the phenomenon of frost. In this study, we will investigate the variation of air temperature over a period of 8 years (from 2009 to 2017). For the first hydrometric station on the Trebeș river (Podis hydrometric station), in 2009, the ice jam has been found for 6 days in the first month of the year, the ice bridge has been found for 39 days (23 days in January, 3 days in February and 13 days in December) with an average of -2.3 ° C in January, 0.7 ° C in February and -0.7 in December. In the year of 2015, we identify the ice jam for 56 days. We can specify that the maximum temperature recorded in 2009 is 23.7 ° C in July.

Keywords

• water and air temperature
• Trebeș River
• ice formation.