Nadezhda Petkova, Vesselin Alexandrov National Institute of Meteorology and Hydrology – BAS, Sofia, Bulgaria nadejda.petkova@meteo.bg   Abstract An investigation on observed variations and tendencies in annual snow cover duration (SCD) and maximum snow depth (MSD) in the mountainous regions of Bulgaria over the period 1931-2005 was carried out. Drought anomaly index and standardized anomalies of […]

Vasko Stojov  Hydrometeorological Service, Skopje, Republic of Macedonia stojov@yahoo.com Abstract The smallest lake of three tectonic lakes in Republic of Macedonia is Dojran Lake. The characteristics of the valley enabled the lake to keep its water reserves more than other neighboring lakes, which are already dried tectonic lakes. According the extremely distinctive hydrological situation in […]

Serkan Şenocak, Reşat Acar, Selim Şengül Atatürk University, Engineering Faculty, Civil Engineering Department, Erzurum, Turkey ssenocak@atauni.edu.tr   Abstract This study aims to determine possible trends in the annual extreme Short Duration Rainfall (SDR) series using nonparametric methods (such as the Mann–Kendall and Sen’s T tests). The data network used in this study, which is assumed […]

L. Kuchar1,2*, S. Iwański1, L. Jelonek2, W. Szalińska2 1 Department of Mathematics, Wroclaw University of Environmental and Live Sciences ul. Grunwaldzka 53, PL-50357 Wroclaw, Poland. 2 Institute of Meteorology and Water Management, Parkowa 30, PL-51-616 Wrocław, Poland. leszek.kuchar@gmail.com   Abstract In the paper probability distributions of river flows for selected climate change scenarios and different time […]

Dimiter Syrakov1, Valery Spiridonov1, Kostadin Ganev2, Maria Prodanova1, Andrey Bogatchev1, Nikolai Miloshev2, Kiril Slavov1 1National Institute of Meteorology and Hydrology, Bulgarian Academy of Sciences, 66 Tzarigradsko Chausee, Sofia 1784, Bulgaria 2Geophysical Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl.3, Sofia 1113, Bulgaria   Abstract  The main objective of the EC FP6 project CECILIA is to […]

C. Mares1, I. Mares1, A. Stanciu1, M. Mihailescu2, 1 National Institute of Hydrology and Water Management Sos. Bucuresti – Ploiesti, 97, Bucharest, Romania 2 Agricultural University, Bucharest, Romania constantin.mares@hidro.ro    Abstract The North Atlantic Oscillation (NAO) is represented through a circulation index which emphasizes the difference between the characteristics of the atmospheric circulation at high […]

Shakya, Mangal Man, Lamichhane, Swechha Wildlife Watch Group, Nepal wwg@citesnepal.org   Abstract Despite its relatively small area, Nepal has very diverse climatic conditions, ranging from tropical in the south to alpine in the north.  Its hydrology is fed largely by the South Asian monsoon system (SAM), but the relationship between the timing, volume of monsoon […]

Igor Niagolov*, Ivan Marinov**, Irena Ilcheva*, Anna Yordanova*, Krasimira Nikolova,*Emiliya Velizarova** *National Institute of Meteorology and Hydrology, Bulgarian Academy of Sciences, Bulgaria ** Forest Research Institute, Bulgarian Academy of Sciences, Bulgaria igorbg@mail.bg   Abstract  An analysis of the available water resources in the Struma river basin, their use at present and in some future climate […]

Mitina N. N., Malashenkov B.M. Water Problems Institute of the Russian Academy of Sciences, Moscow, Russia natalia_mitina@mail.ru, malashenkow@mail.ru   Abstract Among the most important factors that affected on the stable ecological state of the Caspian Sea is its level changing, which is subject to constant fluctuations. The most popular point of view showed that these oscillations […]

Tetyana Bauzha, Liudmyla Gorbachova Ukrainian Research Hydrometeorological Institute, Kyiv, Ukraine  lyudgor@list.ru   Abstract In the practice of the engineering and the hydrological calculations of one of the important hydrological characteristics is the average annual runoff, because at its basis the estimation of the water resources of any territory is carrying out. In the conditions of […]