Use of ship radars for effective discovery of dangerous atmospheric formations on way of ship

Atmospheric fronts and cyclones are accompanied by the thundershower sinking, thunderstorms, gusty winds defiant strong agitation of marine surface. Such atmospheric educations have influence on the radioconduct of navigation objects, that results in the decline of safety of navigator. The special danger is presented by a storm cumulo-nimbus. The area of mesocyclone is often preceded a cumulo-nimbus cloud with turbo speed of circulation of air anticlockwise with sizes to fifteen kilometres. Circulation begins at an altitude of 6-7 km and develops rapidly towards the water surface. The mesoscale zones of fallouts, related to the cyclone, have the appearance of long stripes breadthways an about 100 km the Annual amount of fallouts in tropical zones (in the district of Singapore) arrives at a to 2413 mm with a maximum in January (288 mm). High spatial changeability of intensity and amount of fallouts determines natural dispersion of descriptions of fallouts, that causes the large errors of their weather prognosis. In the zones of active atmospheric fronts a navigator is related to the certain danger of negative influence of long-living cumulo-nimbus that does not reveal meteorological companions. In connection with impossibility of a brief weather prognosis of origin and development of violent weathers there is a necessity for the use ship radar, that in real time allows to discover in the distance many ten of kilometres development of mesocyclone, to measure his speed and direction of motion, i.e. to carry out storm detection and short-term weather forecast on the way of ship. However to present tense for navigators is absent radio-location criteria of storm alert, and at ship radar automatic recognition of the dangerous phenomena on the way of ship. By perspective direction in perfection ship radar there is an increase of their informing radiometeorological methods, that allow to use ship radar not only for the supervision of navigation objects on the way of ship but also for stormy notification about the dangerous hydrometeorological phenomena, measuring of falling out fallouts and supershort-term weather forecast. The radio-location maps of prognosis of violent weathers directionally ship with the rate of updating 10-15 minutes will act on the personal computer of shipmaster in the coloured kind. The zone of supervision of ship radio-locator will be entered by a cumulo-nimbus with a mesocyclonic area and zones of thundershower fallouts, gusty winds and thunderstorms. The receipt of radio meteorological information is based on radio-location descriptions of meteorological formations, the reflected of atmospheric educations, effective area of reverse dispersion, coefficient of weakening of radio waves behave to that. By basis for the use of radio-location descriptions of atmospheric educations in informing ship radar there is basic equalization of radio-location, relating power of echo-signal from atmospheric educations with informative parameters radar taking into account relatively large stability of her basic parameters (meteorological potential).At a supervision ship radar the dangerous atmospheric phenomena the effective radius of their discovery, determined by distance, on that the dangerous phenomenon reveals ship radar with probability no less than 95 %. There are limitations, reducing efficiency of radio-location supervision of dangerous atmospheric educations, is entered. It is high local objects (hills, towers, mountains etc.) that create the corners of closing of their discovery. However, this limitation inherently only in off-shore districts and at a port call. The analysis of equalization of radio-location and his informing are considered for ship radar, and also the tasks decided by means of ship radar on authentication of the dangerous atmospheric phenomena on the way of ship.