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Papers by Niculae Teodorescu

Research paper thumbnail of The Exceptional Flood Registered on the River Cerna

The year 1999 has been important because of the producing of some floods with a relative rare pro... more The year 1999 has been important because of the producing of some floods with a relative rare probability of appearance, which appeared – at different moments – in different river basins across Banat area (south-western Romania). In July 1999, large amounts of rainfall have been recorded in the hydrographic basin of the Cerna River, which were higher than the average monthly multiannual with about 200%. It is imperative that we notice the fact that out of a total monthly rainfall, more than half was produced in one single day (12th July). This characteristic of precipitations has in fact manifested itself in all the elements of the flood (specific discharge, duration of the flood, the growth time, the form coefficient) with average elements of the flood from the 9 hydrometric stations in this basin. In the analyzed hydrographic basin, there are 2 storage lakes All these triggered not only the production of electric energy but also overtook volumes during the flood, thing that favore...

Research paper thumbnail of The main characteristics of high water registered in Bega River Basin during February 1999. XXIVth Conference of The Danubian countries on the hydrological forecasting and hydrological bases of water management

The year 1999 was characterized by high water events with a rare probability of appearance, produ... more The year 1999 was characterized by high water events with a rare probability of appearance, produced in different months of the year, in different river basins from the Banat Region (area situated in the south- west part of Romania). In Bega River Basin the most important high water appeared in the middle of February and was generated both by rain and snow layer melting. The cold period of 1999 was characterized by relatively high quantities of precipitation (module coefficients from 1,17 to 2,15), the most part of those being liquid (rainfall). At altitudes higher than 1000 m, the snow layer was relatively continuous. Weather warming appeared in the middle of February, in the same year, generating the melting of an important layer of snow (10- 15 cm in the plain and around 20 cm in the hilly area), and the water layer generated by this had an important effect, overlaid on the water layer generated by rainfall. The high water (flood) event, which is the topic of this study, appeared...

Research paper thumbnail of ©Romanian Limnogeographical Association THE SURDUC RESERVOIR (ROMANIA)

The Surduc reservoir was projected to ensure more water when water is scarce and to thus provide ... more The Surduc reservoir was projected to ensure more water when water is scarce and to thus provide especially the city Timisoara, downstream of it with water.The accumulation is placed on the main affluent of the Bega river, Gladna in the upper part of its watercourse.The dam behind which this accumulation was created is of a frontal type made of enrochements with a masque made of armed concrete on the upstream part and protected/sustained by grass on the downstream. The dam is 130m long on its coping and a constructed height of 34 m. It is also endowed with spillway for high water and two bottom outlets formed of two conduits, at the end of which is the microplant. The second part of my paper deals with the hydrometric analysis of the Accumulation Surduc and its impact upon the flow, especially the maximum run-off. This influence is exemplified through the high flood from the 29th of July 1980, the most significant flood recorded in the basin with an apparition probability of 0.002%.

Research paper thumbnail of The Surduc Reservoir (Romania)

The Surduc reservoir was projected to ensure more water when water is scarce and to thus provide ... more The Surduc reservoir was projected to ensure more water when water is scarce and to thus provide especially the city Timisoara, downstream of it with water.The accumulation is placed on the main affluent of the Bega river, Gladna in the upper part of its watercourse.The dam behind which this accumulation was created is of a frontal type made of enrochements with a masque made of armed concrete on the upstream part and protected/sustained by grass on the downstream. The dam is 130m long on its coping and a constructed height of 34 m. It is also endowed with spillway for high water and two bottom outlets formed of two conduits, at the end of which is the microplant. The second part of my paper deals with the hydrometric analysis of the Accumulation Surduc and its impact upon the flow, especially the maximum run-off. This influence is exemplified through the high flood from the 29 th

Research paper thumbnail of The minimum flow in the upstream basin of the Timis River

The minimum discharge represents a very important stage in the water flow, especially during the ... more The minimum discharge represents a very important stage in the water flow, especially during the long periods lacking rainfall, both in the cold season, but actually mainly during the dry season. Due to this fact, the present paper aims at an analysis of this stage of the water flow in the upper basin of the Timis River, upstream the Lugoj gauging station. This part of the hydrographical basin presents a major importance due to the fact that downstream this gauging station at about 7 km there is The Costei Hydro technical Knot, through which at low water levels, the entire quantity of water in the Timis river bed is directed towards the Bega river in order to supplement the quantity of water upstream Timisoara, the location of the water supply plant. The water taken from the river is treated there in order to be distributed for use in Timisoara, the capital city of the county. The hot period of the year 2007 was characterized in Romania by the presence of some very long periods with...

Research paper thumbnail of The Exceptional Flood Registered on the River Cerna

The year 1999 has been important because of the producing of some floods with a relative rare pro... more The year 1999 has been important because of the producing of some floods with a relative rare probability of appearance, which appeared – at different moments – in different river basins across Banat area (south-western Romania). In July 1999, large amounts of rainfall have been recorded in the hydrographic basin of the Cerna River, which were higher than the average monthly multiannual with about 200%. It is imperative that we notice the fact that out of a total monthly rainfall, more than half was produced in one single day (12th July). This characteristic of precipitations has in fact manifested itself in all the elements of the flood (specific discharge, duration of the flood, the growth time, the form coefficient) with average elements of the flood from the 9 hydrometric stations in this basin. In the analyzed hydrographic basin, there are 2 storage lakes All these triggered not only the production of electric energy but also overtook volumes during the flood, thing that favore...

Research paper thumbnail of The main characteristics of high water registered in Bega River Basin during February 1999. XXIVth Conference of The Danubian countries on the hydrological forecasting and hydrological bases of water management

The year 1999 was characterized by high water events with a rare probability of appearance, produ... more The year 1999 was characterized by high water events with a rare probability of appearance, produced in different months of the year, in different river basins from the Banat Region (area situated in the south- west part of Romania). In Bega River Basin the most important high water appeared in the middle of February and was generated both by rain and snow layer melting. The cold period of 1999 was characterized by relatively high quantities of precipitation (module coefficients from 1,17 to 2,15), the most part of those being liquid (rainfall). At altitudes higher than 1000 m, the snow layer was relatively continuous. Weather warming appeared in the middle of February, in the same year, generating the melting of an important layer of snow (10- 15 cm in the plain and around 20 cm in the hilly area), and the water layer generated by this had an important effect, overlaid on the water layer generated by rainfall. The high water (flood) event, which is the topic of this study, appeared...

Research paper thumbnail of ©Romanian Limnogeographical Association THE SURDUC RESERVOIR (ROMANIA)

The Surduc reservoir was projected to ensure more water when water is scarce and to thus provide ... more The Surduc reservoir was projected to ensure more water when water is scarce and to thus provide especially the city Timisoara, downstream of it with water.The accumulation is placed on the main affluent of the Bega river, Gladna in the upper part of its watercourse.The dam behind which this accumulation was created is of a frontal type made of enrochements with a masque made of armed concrete on the upstream part and protected/sustained by grass on the downstream. The dam is 130m long on its coping and a constructed height of 34 m. It is also endowed with spillway for high water and two bottom outlets formed of two conduits, at the end of which is the microplant. The second part of my paper deals with the hydrometric analysis of the Accumulation Surduc and its impact upon the flow, especially the maximum run-off. This influence is exemplified through the high flood from the 29th of July 1980, the most significant flood recorded in the basin with an apparition probability of 0.002%.

Research paper thumbnail of The Surduc Reservoir (Romania)

The Surduc reservoir was projected to ensure more water when water is scarce and to thus provide ... more The Surduc reservoir was projected to ensure more water when water is scarce and to thus provide especially the city Timisoara, downstream of it with water.The accumulation is placed on the main affluent of the Bega river, Gladna in the upper part of its watercourse.The dam behind which this accumulation was created is of a frontal type made of enrochements with a masque made of armed concrete on the upstream part and protected/sustained by grass on the downstream. The dam is 130m long on its coping and a constructed height of 34 m. It is also endowed with spillway for high water and two bottom outlets formed of two conduits, at the end of which is the microplant. The second part of my paper deals with the hydrometric analysis of the Accumulation Surduc and its impact upon the flow, especially the maximum run-off. This influence is exemplified through the high flood from the 29 th

Research paper thumbnail of The minimum flow in the upstream basin of the Timis River

The minimum discharge represents a very important stage in the water flow, especially during the ... more The minimum discharge represents a very important stage in the water flow, especially during the long periods lacking rainfall, both in the cold season, but actually mainly during the dry season. Due to this fact, the present paper aims at an analysis of this stage of the water flow in the upper basin of the Timis River, upstream the Lugoj gauging station. This part of the hydrographical basin presents a major importance due to the fact that downstream this gauging station at about 7 km there is The Costei Hydro technical Knot, through which at low water levels, the entire quantity of water in the Timis river bed is directed towards the Bega river in order to supplement the quantity of water upstream Timisoara, the location of the water supply plant. The water taken from the river is treated there in order to be distributed for use in Timisoara, the capital city of the county. The hot period of the year 2007 was characterized in Romania by the presence of some very long periods with...