Vízügyi Közlemények, 1991 (73. évfolyam)
2. füzet - Domokos Miklós: A nyugat- és észak-európai országok hidrológiai együttműködése (FREND) magyar szemmel
A nyugat- és észak-európai országok hidrológiai együttműködése 181 FREND (Flow Regimes from Experimental and Network Data): Volume I: Hydrological Studies, Volume II.: Hydrological Data., Institute of Hydrology, Wallingford, UK, 1989. Gityénné Hofer A.-Domokos M.: Tározó-teljesítőképességi görbék előállítása. Vízügyi Közlemények, 4. fűzet, 1985. Gordon, A. D.: Classification. Monograph on applied probability and statistics. Chapman and Hall, London, 1981. Gustard, A.: Regionalising low flows in northern and western Europe. Regionalisation in Hydrology, Proceedings of the Ljubljana Symposium, April 1990. IAHS Publ. No. 191,1990. Kalinin, G. P.: Global Hydrology. Israel program for scientific translations, 1971. Kitte, К: Das Verfahren MoNMQ, ein Beitrag zur Berechnung der mittleren langjährigen Grundwassemeubildung mit Hilfe der monatlichen Neidrigwasser-Ablfüsse. Zeitschrift der Deutschen Geologischen Gesellschaft, Sonderheft Hydrologie und Hydrochemie, 1970. Heras, R: Hidrológia у recursos hidráulicos. Tomos I у II. Dirección General de Obras Hidráulicas. Madrid, 1976. Kovács Gy. (geogr.): A dombvidéki hidrológiai jellemzők térképes ábrázolása. Magyar Hidrológiai Társaság IV. Vándorgyűlése, Győr, 1983. Kovács Gy. (geogr.)-Domokos M.: Segédletek a dunántúli kisvízfolyások szélsőséges vízhozamainak becslésére. Vízügyi Közlemények, 4. füzet. 1984. Kresser, W.-Lásztójfy, W.: Hydrologie du Danube. Houille Blanche, 2/1964 Lászlóffy W.: A fajlagos lefolyás sokévi átlaga Magyarországon és a hidrológiai hossz-szelvények. Vízügyi Közlemények, 2 füzet, 1954. L'vovics, M t.: Cselovek i voda. Geografizdat, Moszkva, 1963. L'vovich, M. i: Hydrologie budget of continents and estimate of the balance of global freshwater resources. Sov. Hydrol. No. 4. 1972. McMahon, T. A.-Mein, R. G.: River and Reservoir Yield. Water Resources Publications, Colorado, 1986. MINUTES of the 1st meeting of the Working Group for FRIEND in Central and Eastern Europe (Manuscript). Warsaw University, Faculty of Geography and Regional Studies, Warsaw, November 1990. NERC (Natural Environment Research Council): Flood Studies Report 5 volumes. London, 1975. Riggs, H. C.: The transfer of information collected on representative basins. IAHS Symposium of Wellington, 1970. Roald, L-Nordselh, K-Hassel, К A. (Editors): FRIENDS in Hydrology. Proc. InL Conf. 1-6 April 1989, Bolkes0, Norway. IAHS Publ. No. 187. 1989 RZdD (Regionale Zusammenarbeit der Donauländer): Die Donau und ihr Einzugsgebiet Bd. I., II. und III. Bayer. Landesamt für Wasserwirtschaft, München, 1986. Schiller, H.: A Duna-medence Hidrológiai Monográfiája. Hidrológiai Közlöny, 1986/6. sz. Szolcolovszkij, D. L.: Recsnoj sztok. Gidrometizdat, Leningrad, 1968. Újvári, J.: Mittlere monatliche Abflüsse im Donaugebiet Deutsche Gewässerkundliche Mitteilungen, Sonderheft, 1967. *** The hydrological project „FREND" of the West- and North-European countries, as the Hungarians see it by Dr. Miklós DOMOKOS, civil engineer, applied mathematician In the framework of UNESCO's International Hydrological Program, hydrologists of thirteen West- and North-European countries completed, with the coordination of the Institute of Hydrology of Wallingford (UK), in February 1989 their joint work of 4 years duration, resulting in the publication of a regional hydrological project report called FREND (Flow Regimes from Experimental and Network Data). The international scientific venture, based on the flow records of 2061 stations (Figure 2) and characteristic parameters of the respective drainage basins of the FREND region of 2.5 million km 2 area (Figurel ), had rather few precedential activities even in the relatively small European continent (CIHBR 1977, Beran et al. 1984, RZdD 1986). The rightly well recognized regional hydrological school of the Soviet Union (Kalinin 1971, L'vovich 1972) had results that did not need international cooperation. Consequently the getting acquainted with the results of the FREND report by the Hungarian specialists of hydrology and water resources management (the promotion of which is the main objective of the present study) is of high importance. It is also a main concern to find the ways and means of how these results can enrich and support the effectiveness of similar joint research ventures in the Danube Basin or even in the whole East-Middle-Europcan region. Major results of the work related to floods include: the splitting (i.e., clustering) of the FREND region into typical subregions according to the characteristic flood regimes (Gordon
