BALWOIS 2004 Ohrid, Macedonia, 25-29 May 2004   A DIGITAL GROUNDWATER MAP OF BULGARIA IN 1:500 000 SCALE – OBJECTIVES AND METHODOLOGICAL APPROACH Pavel Pentchev, Chavdar Gurov, Nickolai Stojanov, Vassil Petrov University of Mining and Geology “St. Ivan Rilski” 1100, Studentski Grad, Sofia, BULGARIA pentchev@cblink.net   The present groundwater map of Bulgaria is intended for […]

BALWOIS 2004 Ohrid, Macedonia, 25-29 May 2004   COMPLEX APPROACH FOR INVESTIGATION THE RIVER WATER POLLUTION FROM POINT SOURCES Konstantin Tzankov, T.Bojkova, P.Ninov, S.Blaskova, National Institute of Meteorology and Hydrology – BAS, Sofia 1784, Tzarigradsko shaussee 66, BULGARIA Konstantin.Tzankov@meteo.bg   The catchment area of the Topolnitza river as well as the influence of the waste […]

BALWOIS 2004 Ohrid, Macedonia, 25-29 May 2004   APPLICATION OF THE HBV MODEL EOR ASSESSMENT OF CLIMATE CHANGE IMPACTS ON THE ELEMENTS OF HYDROLOGICAL CYCLE FOR THE STRUMA RIVER BASIN Krassimir Stanev National Institute of Meteorology and Hydrology, 66 Tzarigradsko chaussee boul., 1784 Sofia, BULGARIA Krassimir.Stanev@meteo.bg   The model used in this report is a […]

Tatiana Orehova Geological Institute at Bulgarian Academy of Sciences, Sofia, BULGARIA torehova@yahoo.com The frequency of measurements is mainly once per month. For some karstic springs the daily data are obtained using rating curves. Water level in observational wells is measured usually once in a month. Water level recorders are available only for one part of stations. […]

BALWOIS 2004 Ohrid, Macedonia, 25-29 May 2004   LOW FLOW AND DROUGHT SPATIAL ANALYSIS Snejana Dakova National Institute of Hydrology & Meteorology, BASc, 66 Tzarigradsko Shosse, 1784 Sofia, BULGARIA Snejana.Dakova@meteo.bg   The hydrological characteristics of Bulgarian rivers reflect to the climate variability. Nearly all precipitation is received during the spring and/or winter months, with negligible […]

BALWOIS 2004 Ohrid, Macedonia, 25-29 May 2004   CLIMATE VARIABILITY AND CHANGE AND RELATED DROUGHT ON BALKAN PENINSULA Vesselin Alexandrov National Institute of Meteorology and Hydrology 66 Tzarigradsko shose Blvd. – Sofia, BULGARIA Vesselin.Alexandrov@meteo.bg   In this paper, results on climate variability including variations of air temperature and precipitation in Bulgaria during the 20th century […]

BALWOIS 2004 Ohrid, Macedonia, 25-29 May 2004   USING A GIS FOR LOCALIZING OF AREA AFFECTED BY WATER EROSION – CASE STUDY IN NORTH-WEST BULGARIA Zhulieta Arnaudova Agricultural University, Plovdiv, BULGARIA Juliet@au-plovdiv.bg   Applying of up-to-date technology allows taking right decisions and carrying out activities to prevent agricultural lands of soil erosion. In this report […]

BALWOIS 2004 Ohrid, Macedonia, 25-29 May 2004   ANALYSIS OF CLIMATE CHANGE IN SOUTHEASTERN BULGARIA AND NORTHWESTERN TURKEY Vesselin Alexandrov1, Hafzullah Aksoy2, Snejana Dakova1, Ahmad Dahamsheh2 1National Institute of Meteorology and Hydrology 66 Tzarigradsko shose Blvd. – Sofia, BULGARIA 2Istanbul Technical University Ayazaga, Istanbul, TURKEY Vesselin.Alexandrov@meteo.bg   An analysis of climate change in two neighbor […]

BALWOIS 2004 Ohrid, Macedonia, 25-29 May 2004   PHYTOCLIMATIC ASSESSMENT OF AIR TEMPERATURES TRANSITION ACROSS IMPORTANT BOUNDARY VALUES Valentin Kazandjiev, Nicola Slavov National Institute of Meteorology and Hydrology – BAS 1784, Sofia, 66 Tsarigradsko shausse, BULGARIA Valentin.Kazandjiev@meteo.bg   Thermal regime investigation in global and regional scale is the problem permanently in field of vision of […]

BALWOIS 2004 Ohrid, Macedonia, 25-29 May 2004   INVESTIGATION CONCERNING INFLUENCE OF SEISMIC ACTIVITY ON THE REGIME OF THERMAL WATER OCCURRENCE “PCHELINSKI BANI”, BULGARIA Boryana Yordanova Deneva University of Mining and Geology, Sofia, BULGARIA boryana_deneva@yahoo.co.uk   “Pchelinski bani” thermal water occurrence is located in the central west part of Bulgaria. As a hydrogeological object of […]