![]() ![]() Since then, weather radar has evolved and is used by national weather services, research departments in universities, and in television stations' weather departments. Soon after the war, surplus radars were used to detect precipitation. Techniques were developed to filter them, but scientists began to study the phenomenon. Both types of data can be analyzed to determine the structure of storms and their potential to cause severe weather.ĭuring World War II, radar operators discovered that weather was causing echoes on their screens, masking potential enemy targets. ![]() Modern weather radars are mostly pulse-Doppler radars, capable of detecting the motion of rain droplets in addition to the intensity of the precipitation. Weather radar, also called weather surveillance radar ( WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.). Weather radar in Norman, Oklahoma with rainshaft Weather (WF44) radar dish University of Oklahoma OU-PRIME C-band, polarimetric, weather radar during construction Increasing incidents of flash floods and cloudbursts in the hill states of Himachal Pradesh, Uttarakhand and Jammu and Kashmir and other parts of the country due to climate change has led to increasing need for accurate forecasting for such events.Īccurate predictions are needed to save lives and forecast of weather, including monsoon and cyclones given the fact that India’s GDP is largely dependent on agriculture, short and long term planning and strategy development.Radar used to locate and monitor meteorological conditions Division of Doppler Radars and their applications: Doppler radar can be divided into several different categories according to the wavelength which are L, S, C, X, K.It provides advanced information, enhancing the lead-time so essential for saving lives and property, in the event of natural disaster associated with severe weather.It has the equipment to measure rainfall intensity, wind shear and velocity and locate a storm centre and the direction of a tornado or gust front.It is designed to improve precision in long-range weather forecasting and surveillance using a parabolic dish antenna and a foam sandwich spherical radome.It is a specialized radar that uses the Doppler effect to produce velocity data about objects at a distance.It has its own source of illumination (a transmitter) for locating targets.It is a device that uses electromagnetic waves in the microwaves region to detect location (range & direction), altitude, intensity and movement of moving and non-moving objects.Doppler Effect works on both light and sound objects.It was discovered by Christian Johann Doppler who described it as the process of increase or decrease of starlight that depends on the relative movement of the star. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |