A method is proposed for restoring the intensity of liquid precipitation based on solving integral scattering equation of electromagnetic waves by polydisperse medium of water drops for the case of double-frequency sensing in the microwave range. It is shown that for intensities of 1 … 30 mm/h and for working wavelengths of 0.82 and 3.2 cm, the proposed approach allows restoring rain intensity with an error of less than 20% for rains with an intensity of more than 5 mm/h and 60% for weak rains (less than 5 mm/h).
A review of physical and mechanical and electrophysical properties of snow was carried out, and the features of physical and numerical modeling of the characteristics of radar scattering of precipitation particles were analyzed.
Backscattering characteristics of electromagnetic waves by snow particles in the form of two types of hexagons in wide range of wavelengths were studied, as parameter of task it was chosen root-mean-cube diameter of equivalent sphere.
The character of the resonances is determined in the study of effective radar cross section with a change of root-mean-cube radius of the particles.
Scattering indicatrix of snow crystals was investigated (the dependence of RCS on incidence angle of electromagnetic wave), which made it possible to estimate the limits of the variability of the RCS of snow particles with variations of elevation angle of radar antenna.
An analysis of physical bases was carried out, methods and means of using geostationary AES signals for determining the parameters of hydrometeorological formations and solving of applied problems were developed and tested experimentally.
Experimentally complexed passive-active method for determining water content of hydrometeorological formations using radio signals from radar stations and geostationary AES has been developed and tested.
A database of remote dependencies of attenuation factors of USW over world ocean was created as a result of analysis and processing of experimental results of the expeditions of IRE NAS of Ukraine in 1976-1991.
The methodology for testing level gauge-flow meter and sketch documentation of the device for installing level gauge-flow meter on input conduit of Bezludovsk treatment facilities (GOS №2) have been developed and approved by UC “Vodokanal”.
Studies of complex dielectric permeability of liquid fuels and lubricants, including diesel fuel, kerosene, gasoline. According to the results of the research, the possibility of determining the type of fuel and lubricants by its location on complex plane was established.
A method for calibrating of radiometric system using relative measurements at different elevation angles for accurate determination of sky temperature has been proposed. This makes it possible to significantly improve calibration accuracy and, consequently, the quality of radiometric measurements, especially in the region of low values of brightness temperatures.
A version of three-centimeter radiometer using standard satellite converter was developed and implemented, which made it possible to increase the sensitivity, simplify and reduce the cost of construction, and also increase the reliability of radiometric receiver.
Field studies of water storage of developed clouds with joint passive-active sensing in 3cm and 8mm ranges were carried out.
25.08.2016