Radiolocation in meteorology (C.Igor)

From everyone «meteorological object» reflection of radio of waves Happens on a miscellaneous and it is variously represented on the screen Radar. Force of the reflected pulses (echo of signals) radio-waves depends from Density and the sizes of the particles forming a cloud Than more Density of a congestion of particles and the they is larger, the reflection is stronger And the light stains arising on the screen of a locator are brighter. Therefore Shower clouds and the settlings consisting of the large are well noticeable Particles of a rain of hailstones or snow On the screen of a locator the such The image can be distinguished from the luminous marks caused easily Other objects Reflected signals from terrestrial objects Are represented by fixed light stains with sharp The contoured boundaries. The signals reflected from "Meteorological" objects differ the smaller Intensity, have dim changing forms similar on Clouds, they are slowly moved on the screen accordingly To driving of an observable zone of precipitates By means of a radar define intensity of drop-out Precipitates, find out atmospheric fronts and turbulence Atmospheres. On the screen of the circle review of a cloud and settling of cold front The bent band which happens not continuous more often are represented in the form of long, narrow, a little, and Consists of the several centers with strongly pronounced boundaries. If Such band is formed by pulses of the big capacity, it Means that the powerful are connected to the given cold front Kuchevo-rain, storm and squally clouds. Clouds of warm front (normally stratified-rain) and falling out From them settlings are represented in the form of enough wide, homogeneous Bands without abrupt boundaries

The signals forming this image on the screen, are more constant On brightness and value; sharp changes of their intensity and The sizes can be watched only in the presence of thunder-storms and squalls. Separate powerful cumulus and kuchevo-rain storm clouds Are fixed by locators in the form of stains. And signals, Reflected by powerful cumulus clouds, are constant on inten - сивности, edges the image are blurred. If clouds increase, That pulses on the screen amplify, envelop the big area Also acquire strongly pronounced outlines. Passage of a powerful cumulus cloud in kuchevo-rain more often Proceeds about 10—30 mines As soon as from clouds begin To fall out settlings, force of reflected signals sharply fluctuates. At Lightning discharges, squalls on the screen there are separate Flashouts. The period of the active stage of a kuchevo-rain cloud lasts About 30—50 minutes Gradually force of reflected signals Weakens, then they absolutely disappear. It renders on the full washing out of kuchevo-rain clouds and cold front on which they are normally formed

Areas of shower rains of a tropical cyclone on the screen Radar are represented in the form of a row of light stains, In which direction of driving it is possible to judge relocation of the cyclone. Write the text of your article here!