Organization of Hydrometeorological Monitoring in the Region of the Belorussian NPP

2017

MATEC Web Conf.

Abstract. Due to extensive construction of high-rise buildings and structures, wind load calculations are becoming more and more important. These calculations require availability of credible wind data at the altitude of the atmospheric boundary layer and associated databases. This work is devoted to development of a framework for such databases, aimed at solution of various wind engineering tasks. Main principles for wind aerological observation database development for industrial and civil construction were established. Examples of wind characteristics and atmospheric dispersion characteristics are provided on the basis of radiosonde and SODAR/RASS observations. Prospects for development of similar databases for atmosphere pollution monitoring, wind power engineering, aviation are reported.

Section: Measurement Systems and Databases Of Wind Observationsmentioning

confidence: 99%

Data bases of aerological wind observations for industrial and civil construction

2017

MATEC Web Conf.

“…Atmospheric dispersion is a combination of pollutants transport in the atmosphere by directed air flow and turbulent diffusion, and thus its comprehensive study is of great importance for environmental applications. In particular, the dispersion parameters of the atmospheric boundary layer (the lower atmospheric layer, extending to heights of about 1 km) determine the conditions of the radionuclide dispersion and are therefore important in assessing the radiation safety and developing engineering protection of NPPs [1]. In this regard, the atmospheric boundary layer (ABL) status monitoring is provided at the key stages of the NPP life cycle (during construction, operation and decommissioning thereof).…”

Section: Introductionmentioning

confidence: 99%

“…The initial data for this study were the results of the ABL status monitoring observations carried out from September 2014 to the present time by the Scientific & Industrial Association Gidrotekhproekt, with the involvement of experts from the Moscow State University of Civil Engineering and GrafProektStroyIziskaniya Ltd. The climatic regime of atmospheric dispersion in the Belarusian NPP siting area was studied earlier in the framework of engineering surveys using radiosonde observations [6].…”

Section: Introductionmentioning

confidence: 99%

Assessment of interannual and intra-annual atmospheric dispersion variability parameters in the Belorussian NPP siting area

2019

E3S Web Conf.

Identification of atmospheric boundary layer (ABL) radionuclide dispersion conditions, which are characterized by ABL dispersion parameters, plays an important role in evaluating the radiation safety of nuclear power plants (NPPs) and establishing engineering protection thereof. Therefore, the ABL status monitoring observations are launched at the stage of in-situ NPP construction. When analyzing and predicting radiation situation in the NPP vicinity areas, it is of great importance to determine the parameters of atmospheric dispersion variability with time. The ABL status monitoring at the Belorussian NPP site has been carried out since September 2014 by means of acoustic and radio-acoustic sounding of the ABL. The present study is aimed at assessing interannual and intra-annual variability of atmospheric dispersion parameters in the Belorussian NPP siting area on the basis of the monitoring data. The relative interannual stability of the main average annual atmospheric dispersion characteristics (vertical temperature gradient, wind speed and direction) over the observation period has been revealed. At the same time, the average seasonal values of the dispersion parameters are characterized by significant fluctuations thereof during the annual course. The prospects of the ABL status monitoring for other potentially hazardous industrial facilities, such as thermal power plants and chemical plants, are also noted.

“…An additional water flow into Udomlya lake will provide the Kalinin NPP with additional water resources for its process water supply. It must be emphasized that the adequacy of water resources is one of the NPP safety conditions [3,4]. To maintain household-level water in Navolok lake at the beginning of the riverbed channel to be cleared the construction of controlled spillway structure is planned.…”

Section: Introductionmentioning

confidence: 99%

Pre-project geoecological studies for clearing of the Tikhomandritsa riverbed (Tver Region, Russia)

2017

MATEC Web Conf.

Abstract.Pre-project geoecological studies were carried out in autumn 2015 along the entire length of the Tikhomandritsa river, in Navolok lake waters near the river source and Udomlya lake near its mouth, as well as on the territory adjacent to the river, as part of the Comprehensive Engineering Surveys. The aim of the studies was to obtain initial data to assess the current ambient conditions of the study area, as well as to develop the project of cleaning the upper stretch of the Tikhomandritsa riverbed and spillway structure construction. Water, bottom sediments and soil contamination levels were identified. It is found that the water quality in the studied water bodies belongs to the contaminated category. Bottom sediments at the upper stretch of the river up to a distance of 2.5 km from its source are pure and can be used in agriculture without restrictions. Bottom sediments samples taken at a distance of 5.5 km from the river source and its mouth contain dangerous level of coliform bacteria. Basing on the territory survey a tree and shurberry felling plan was drawn up and the volume of works of the river purification was determined. The project implementation will help to increase the river flow in dry water years, increase its self-cleaning velocity and environmental improvement of the area. In addition, the increase of water flow into Udomlya lake will provide Kalinin NPP with additional water resources for its process water supply. The conceptual scheme of this study is largely applicable for the basins of other small rivers.