Institute of Water Problems

Russia

Institute of Water Problems

Russia

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Makhmudov R.N.,Research Hydrometeorological Institute | Aliev V.A.,AMIR Technical Services LTD | Akhmedov A.A.,Azerbaijan National Aerospace Agency | Ramanazanly Z.Z.,Institute of Water Problems
Water Resources | Year: 2017

The morphometric and anthropogenic risk factors of floods in a typical lowland Lower Kura R. are studied. The isolation of the channel from the floodplain is the major cause of floods in the river. The high channel tortuosity makes the flow turbulent. In addition, the high sediment concentration, the turbid and disperse character of the liquid, the gentle bed slope, and the alluvial character of the soil underlying the bed and embankments contribute to the vertical and horizontal dynamics of the channel. © 2017, Pleiades Publishing, Ltd.


Belousova A.P.,Institute of Water Problems
Izvestiya Akademii Nauk, Seriya Geograficheskaya | Year: 2011

In the article the estimation of an exhaustion of fresh groundwater resources is considered at withdrawals in a number of cities of the European part of Russia with use of indicators and indexes of their stability, before the developed for small-scale, regional estimations. Besides, the estimation of flooding is considered by shallow groundwater of territories at abnormal flooding with use of indexes of stability of groundwater to the negative phenomena.


Normatov I.,Institute of Water Problems | Normatov P.I.,Tajik National University | Muminov A.,Tajik National University
Proceedings of the 5th International Disaster and Risk Conference: Integrative Risk Management - The Role of Science, Technology and Practice, IDRC Davos 2014 | Year: 2014

Considering importance of weather conditions for development of agricultural grades influence of the Nurek reservoir on formation of a microclimate of the Dangara district with the developed agricultural branch investigated. It is observed that the natural trend of temperature in summer and the winter periods before construction of a reservoir transformed to the return, i.e. temperature increases in the winter and decreases in the summer. Analysis of annual precipitation shows the cyclical their fluctuations by interval of 3-5 years. Humidity reduction for the considered periods that is connected with increase of temperature at almost invariable trend of the precipitation change in Dangara was observed.


Kuchment L.S.,Institute of Water Problems | Gelfan A.N.,Institute of Water Problems | Demidov V.N.,Institute of Water Problems
Contemporary Problems of Ecology | Year: 2013

A physicomathematical model of the hydrological cycle in a forested catchment was constructed. This model describes the interception of liquid and solid precipitation by tree crowns; snow accumulation and melting; vertical transfer of moisture in soil and its evaporation; and surface, subsurface, and channeled runoffs. The model was calibrated and verified using the observation data for the completely forested Taezhnyi catchment within the area of the Valdai Water Balance Station. Then the model was used to assess possible changes in the hydrological cycle after clear cuttings in this catchment. The values of model parameters were compared to the corresponding soil characteristics in the adjacent treeless (field) Usad'evskii catchment. Modeling results demonstrate that the average water reserve in the snow cover before melting can increase by 15% after forest cutting in the Taezhnyi catchment. The losses for snow sublimation are reduced almost two-fold. The snow melting intensity increases by 30% and its duration decreases by 10 days. The annual runoff after cutting increases by 7-10%; however, the seasonal distribution of the runoff and the constituents of the water balance change to a greater degree. During spring flood, the maximal water discharge in the forested catchment is 50% smaller than after forest cutting. The duration of spring flood after cutting is reduced by 5-7 days. The changes in the hydrological cycle depending on the age-related alteration in leaf area index were also studied. © 2013 Pleiades Publishing, Ltd.


Normatov I.,Institute of Water Problems | Normatov P.I.,Tajik National University
Proceedings of the 16th International Association for Mathematical Geosciences - Geostatistical and Geospatial Approaches for the Characterization of Natural Resources in the Environment: Challenges, Processes and Strategies, IAMG 2014 | Year: 2014

Considering importance of weather conditions for development of agricultural grades influence of the Nurek reservoir on formation of a microclimate of the Dangara district with the developed agricultural branch investigated. It has observed that the natural trend of temperature in summer and the winter periods before construction of a reservoir transformed to the return, i.e. temperature increases in the winter and decreases in the summer. Analysis of annual precipitation shows the cyclical their fluctuations by interval of 3-5 years. Humidity reduction for the considered periods that is connected with increase of temperature at almost invariable trend of the precipitation change in Dangara was observed. © 2014, Capital Publishing Company.

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