NUMERICAL ANALYSIS OF THE OBSERVABILITY OF THE CITY ROAD NETWORK EMISSION SOURCES USING THE SENSITIVITY OPERATOR OF THE ATMOSPHERIC CHEMISTRY TRANSPORT AND TRANSFORMATION MODEL

Within the scenario approach, the observability of traffic emission sources is estimated from indirect monitoring data. What is new is that an approach based on sensitivity operators is used to estimate observability, which allows us to obtain a family of quasilinear operator equations for the source identification problem. This allows both solving and analyzing its properties. For the city of Novosibirsk, realistic weather scenarios, a scenario for the distribution of traffic emission sources and the location of monitoring sites are considered. In numerical experiments, the road network is identified smoothed over space. Concentration fields are restored with greater accuracy. Evaluation of the information about the sources contained in the data based on the analysis of the sensitivity operator allows one to get an express estimate of the inverse problem solution.

MODERN PORTABLE SHORT-RANGE RADAR STATIONS

The article discusses the creation of radar reconnaissance equipment capable of operating effectively in any climatic conditions.

HYBRID 3D PRINTER FOR LAYER-BY-LAYER FORMATION OF STRUCTURES WITH CONDUCTIVE TOPOLOGY

The paper presents the main characteristics and functionality of a hybrid 3D-printer created at the Institute of Automation and Electrometry SB RAS, containing a portal recording system with dispenser heads for digital inkjet printing and a laser scanning system for subsequent post-processing with precise alignment software. The formation zone is located on a mobile platform moving along the Z coordinate. This design makes it possible, by layer-by-layer additive synthesis, to form three-dimensional structures with given local conductivity.

ELECTROMAGNETIC TREATMENT OF SEEDS AS A FACTOR OF THEIR GENETIC POTENTIAL MANAGEMENT

In bio-agricultural technologies are considered additional factors that without chemical stimulants of plant growth by electromagnetic processing of seeds to increase yields from 12% to 30%, reducing the annual amount of applied mineral fertilizer required to produce one ton of grain, with the consistency of water resources for a specific field in a specific agro-ecological environment. The rationale for the inevitable transition to bio-agriculture due to the lack of water for agricultural production in the coming years is given.

FABRY - PEROT TUNABLE FILTERS

Tunable light filters are widely used for selecting different bands of wavelengths in the UV, visible and IR spectrum. Their advantages are simplicity, accuracy and high mono-chromaticity. By varying magnetic field it is possible to adjust the filter and select desired wavelength if necessary. In the paper a research on tunable light filters based on Fabry-Perot interferometer (FPI) is presented. These light filters can be tuned in the wavelength range from 400 nm to 1000 nm, in IR band of 8 - 12 μm, with spectral pass band width between 0.5 μm and 1 μm, out of band rejection than 10꞉1 with a resolution of 0.5 - 1.5μV.

ANALYSIS OF CRYPROCURRENCIES AND PROBLEMS OF BLOCKCHAIN DEVELOPMENT

This article examines the history of the emergence of cryptocurrencies, their advantages and disadvantages, and also considers the blockchains, where special attention is paid to the problem of the development of this technology.

DEVELOPMENT OF METHODS FOR CREATING DIGITAL ENGINEERING-TOPOGRAPHIC-TOPOGRAPHICAL PLANS USING MATERIALS OF UNMANNED AERIAL PHOTOGRAPHY SYSTEMS AT LOW ALTITUDES

Currently, the existing approaches to geodetic support for the design, survey, construction and reconstruction of buildings and structures do not fully meet the needs of the construction industry. Digital large scale topographic plans do not fully reflect the situation on the construction site. In this regard, to supplement digital engineering and topographic plans with information obtained using the survey materials of unmanned aircraft systems (UAS) is proposed. The article discusses the possibilities of obtaining and processing the materials of surveying with UAS at low altitudes, using the example of the construction of a new metro station in Novosibirsk. The DJI Phantom 4 PRO quadrocopter was used as a UAS. The accuracy of the obtained orthophotoplan is sufficiently suitable as explanatory information for the digital engineering and topographic plan of the object under study.

THE ANALISIS OF MERCURY EMISSIONS FROM «USOLYEKHIMPROM» INDUSTRIAL SITE

The numerical analysis of mercury pollution in the vicinity of the “Usoliekhimprom" industrial site and a territory of Usolye-Sibirskoye was held. The main centers of atmospheric influx of mercury vapor, which are located in the area of the sludge storage and the former mercury electrolysis workshop, were determined by the results of the soil survey. Asymptotic descriptions of the processes of transfer of light impurities from ground-based sources, taking into account the relative position of foci and observation points, were proposed. A reconstruction model of concentration fields over a long period of time for the dominant sources of plant was developed. The model was tested on biomonitoring data for 2019. Quite satisfactory agreement between the data of experimental studies of the content of mercury in poplar leaves with the results of numerical modeling was obtained. The ratios of contributions to pollution from different objects of the enterprise were calculated. Recommendations on the use of the reconstruction model to control rehabilitation measures at the Usoliekhimprom industrial site, which are currently being carried out, have been proposed.

CHANGES IN THE HYDROLOGICAL CHARACTERISTICS OF THE ARCTIC OCEAN UNDER THE INFLUENCE OF INCREASING RIVER RUNOFF

The paper considers issues related to the influence of increased Arctic river runoff on the formation of the thermohaline structure of waters outside the Arctic shelf and, in particular, on the variability of heat content of the deep Arctic Ocean. The study is carried out using the three-dimensional numerical model of the ocean and sea ice SibCIOM and atmospheric reanalysis data NCEP/NCAR. Numerical simulation results showed that increased flow of Arctic rivers contributes to the stability of water stratification outside the shelf areas, which reduces the depth of autumn-winter mixing and allows Atlantic waters spreading along the continental slope to retain their heat. This is evidenced by an increase in the heat content of the upper 200 m layer waters of the eastern Eurasian basin and the rise of the Atlantic water layer upper boundary in this region.

USE OF GIS TECHNOLOGIES FOR INVENTORY OF PROTECTED AREAS OF SYRIA

The article presents the result of using GIS for collecting, processing and storing distributed data on specially protected natural areas (SPNA) in the Syrian Arab Republic. The emergence of GIS, using a huge amount of data, has greatly simplified the process of studying protected areas, assessing their spatial size and geographical location, identifying their characteristics and processes of their development and structuring. With the advent of GIS, monitoring of such objects has become more accurate and flexible. This article describes the experience of using the freeware GIS for systematization of information about the protected areas of Syria. The procedure for creating a digital map of the protected areas of Syria is outlined, the main elements of its thematic content are described. The created digital map is an informational basis for the design and development of the monitoring system for the SPNA in Syria.