HYDROLOGY REPORT ON WATER BALANCE OF LAKE BALATON
GY. VARGA, G. KRAVINSZKAJA
ABSTRACT. – Hydrology on water balance of lake Balaton. From the mid 1960s the number of occurrences of drier-than-average years have increased when compared to the preceding period. It also deserves attention that these years tend to appear consecutively (3, 7, and 4 consecutive years during this time). This phenomenon results in cumulative water deficit that affects the water-circulation of the lake negatively as well as causing significant and persistent droop in both the water-supply and water-level. Characteristic and enduring changes can be diagnosed regarding the change of inflow over time. The most prominent of these is the decline that began in the early 1970s and continues to our day. This decline can most likely be credited to the simultaneous occurrence of a number factors affecting down-flow.
Key words: precipitation over the lake surface, inflow to the lake, cumulative water deficit, significant and persistent droop in both the water-supply and water-level