Hidrológiai Közlöny 1949 (29. évfolyam)

9-10. szám - Értekezések - J. BOGÁRDI, D. Eng.: Report on the Ground Water Conditions of the Great Hungarian Plain

193411935 119361937 1193

81193911940 119

41 119*

? 11943II944 H94BÍ1946I1947 Fig. 4. ábra. Yearly mean stagm. Évi tözepos vízállásoik. red as a decade of averagp hydrologic conditions, sinee the rainy and arid years are about equally represented. From the figures it may be perceived as to liow many t.imes occured higher or lower stage within the ten years compared with a given stage. The average sta?e. that is the 185.5 days duration stage referring to one year, was at Kiskunhalas .139 cm and at Püspökladány 317 cm. Figure 4. shows the annual mean stages for 14 years at Kiskunhalas and at Püspökladány. This figure discloses plainly the identieal variation of the arid-hot, the average and the rainy cool years on both wells. The variat'ons recored in the order of time on the two wells of different trait, located in different. districts verify alsó the hydrographie unity of the ground water conditions of the Alföld. Tu accordance with the foregoing the quest'on may arise: is there any demonstrahle relation between the stages of the wells located in different districts of the Alföld? In adjacent. closely together located wells by all means t.here can be found more or less distinct relationship between the ground water stases sinee the local conditions influencing in the first plaoe the water tables can be considered identical. In the stages of wells located of somé Fig. 5. átora. Retation of ground icater stages in 19il. összprügwée talaj vízállások között KMl-ben. ^ i •sí ;i5o P ( \s . € £ 5 <02 O) -S-50 ű 30 g 3 c o 4 3 JO O 04 o to o to o If) 8 s Depth ofthe ground water teve! beton the brim ot the weH tn cm PÜSPOhLADAHV. _ . A talajvíz mélysége a kút pereme alet) cm-Den, PÜSPÖKLADÁNYNÁL . distance from each ot.her we hardly expect. however, any relationship. Should, however, by any chance such relationship appear it would prove only the close correlation of the stages with certain elements. with elements identical or at least similar at both wells. In this respect we have made our examination on the two wells of the Alföld located far apart from each other. i. e. on that at Kiskunhalas and the one at Püspökladány. According to figure 5. we have tried in 1941 to determine the relationship of the stages of the above mentioned wells. Each point signifies stages recorded on the same day. The Aratyic numerals next to each point signify the month of the recording from wliich the characteristics of the stages may be deduced. Figure 2 means na mely in generál, that in the llth, 12th, Ist and 2nd montlis there were rising stages while in the 3rd, 4th and 5th, or in the preceding or in the following months there were culminating, and in the 6th, 7th, 8th, 9th and lOtli months there were falling stages. The year of 1941 was excepSl: il! <o SS? t. !|í to •fel-f í s e « 1.5SI i é •í ' g DeDthon A tafajvi7 mi ¥ hí"' 1' i "r Haj Ay V , , Jtfocm RUSPOKl AOANY Ige a kul pereme alatl cm-ben, PÖSPOI" Fig. 6. átara. R&atoUm of ground water stages in í'Jli. ÖESzerüs?srés talajvízállások 'között '1947-ben. tionally rainy and cool, and according to the figure 5 there appears no relationship whatsoever between the stages. Figure 6 alsó represents the relationship between the stages at Kiskunhalas and Püspökladány. The year of 1944 may be considered as a year of average weather condition. Although there is a wide seatter with respect to the falling stages nevertheless somé relationship may be observed. Figure 7 finaIly shows the stages at Kiskunhalas and Püspökladány in the very arid year of 1947. According to the figure the relationship of the stages of the two wells is represented by a loop like curve. One stem of the curve shows the rising, the other the falling stages. The end of the curve represents the culminating, and of the preceding and the following stages showing that the culmination occured sooner at Püspökladány than at Kiskunhalas. In recording of the minimums no displacement occured, and the stages at the lower culmination are repre sented alsó by the stem or its extension of the „falling" curve. .280