This video shows the steps of creating your own desktop weather radar using free software. earth.google.com North America – radar.weather.gov/ridge/kmzgenerator.php Europe – google.meteox.com
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Home Page > Computers > Information Technology > Weather Radar Imaging
Weather Radar Imaging
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Weather Radar Imaging
By: Soniya
About the Author
(ArticlesBase SC #2066892)
Article Source: – Weather Radar Imaging
Radars are used in meteorology for determining location and intensity of the precipitation and performing wind measurement. Radar imaging equipment detects hail storms and hurricanes. You cannot imagine the state-of-the-art weather surveillance tools that are used only for accumulating information. Frame grabbers connected to live weather radars capture the output VGA signal from the weather radar receiver. The frame grabber transfers the VGA signal from the radar imaging equipment to the computer.
Main advantages of radar imaging
Initially radars could only detect the object’s presence, motion and position. Unlike common radars the weather radar imaging devices allow for creating an object’s picture. This ability is effectively applied in weather forecasting. Pulse radars based on the Doppler effect are likely the most applied imaging radar type in weather forecasting.
Pulse-Doppler systems of radars
The Doppler effect applied in pulse-Doppler radar systems makes possible determining the relative velocity of different objects. Such systems applied in weather forecasting detect target location and measure radial velocity of the target. Doppler radar images track the rain droplets movement and perform analysis of the precipitation intensity. This equipment provides authentic forecast information about sea surface temperature, wave heights, surface pressure, etc.
Frame grabbers and radar imaging
Weather radar imaging equipmentcan perform multiple measurements. Very often it is extremely important to save data from live weather radars to the computer with the appropriate software for future analysis, processing and archiving. VGA2USB allows for connection of a weather surveillance radar to a computer. Unlike the Imagenation and Matrox frame grabber lines, VGA2USB provides capturing of VGA signal. The VGA-Masterframe grabber cardby PixelSmart that also captures VGA signal is not available as an external solution and therefore needs installation.
Video signal capturing
Weather pulse radar systems are capable of detecting the motion of rains, clouds, and storms. The received information flow from the systems displays dynamics of the precipitation movement. An American scientific organization that provides climate, hydrologic, weather forecasts has chosen VGA2USB for capturing VGA stream from weather radar imaging equipment and synchronizing it with radio transmissions.
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National Weather Service
National Weather Service Information
National Weather Service – The largest weather information agency
The National Weather Service operates in the United States of America. It was established in the 1870, but back then it was impossible to properly predict the weather conditions. So they usually just analyzed past weather conditions and tried to predict the future ones. This was of course until the invention of the weather radar in the middle of the 20th century. When the weather radar was invented the possibility to predict the weather conditions was huge and a lot of companies tried to build one on their own or buy an already constructed one and improve and develop it as well as they could.
However back in the past they still were possible to determine the possible weather conditions, but it was very dangerous and not so accurate. The National Weather Service launched piloted planes and sent them to scout the clouds and to collect information about the weather conditions so that they can calculate the chances of storms, rains, snows or just sunny weather. But after the end of World War II the weather radar was invented and they started using it. The National Weather Service is responsible for bringing the weather, climate and hydrologic forecasts to the population of the United States of America as well as for warning the in case of danger of a natural disaster.
Of course such a big organization which covers the weather conditions in the entire United States of America doesn’t use just one weather forecasting central. They have more than 120 forecasting centers which are equipped with the latest gear in weather predicting and are getting improved which every passing day. All of these centers are responsible to follow the weather conditions for a certain area of America. They must also properly and on time warn the citizens in case of a danger of a natural disaster. Due to their advanced technology, they don’t only use weather radars, but also planes which don’t have a pilot and are controlled manually from distance. These planes are sent to different areas so that more accurate data about the weather conditions can be gathered thus allowing the National Weather Service to give more detailed and accurate information about the future weather.
The National Weather Service is a very important organization of the United States government. They don’t only help us by telling us the future weather, but also are obligated to warn us when there is a danger of natural disasters so that we can react adequately and prevent harm to us and our property. The National Weather Service provide the most accurate future weather conditions for the United States so if you are planning a holiday there you can trust the information which is provide by the National Weather Service.