Doppler Radar
The Social realm of Doppler radar relates to many different things we do in everyday life, anytime you are going outdoors anywhere in the world you can find out what it is going to be like before you even step outside. This is made possible with the use of Doppler Radar. In this section I am going to discuss the social realm of Doppler radar in the local, regional, national and global areas. First we must know what is Doppler radar? Doppler radar is a device that measures the Doppler shift in a radar beam reflected from an object’s motion towards or away from the radar aerial. (from WeatherOnline.com)
In our local area we use Doppler radar for many different things in the social realm. We use is for safety when bad weather is near. Doppler radar has saved many lives since it was first used to track weather in @#$%$%%^ !#$%^?... When a tornado is near we take cover and when a flood is near we do all we can to protect what we can in the time we have. Fortunately we don’t live near the coast where hurricanes occur. It also helps us in the social realm in the winter when we have snow and ice, when driving conditions are at there worse. Nobody wants to risk their lives when the roads are icy so we tend to cancel more and more of our social gatherings during the winter, and if you have a television and or radio you can find out most of the cancellations before you head out the door and risk your life on snow and ice covered roads.
Anyone and everyone who has a job that requires them to be outdoors is almost always watching the weather. Many different jobs depend on the weather, for instance concrete layers can’t pour concrete when it is raining, they also have to look to see when it is going to rain next, because they have to give the concrete time to set. Concrete workers also look at what the temperature is, the temperature can effect the way that a certain concrete will set, how long it will take and if it is too hot or cold out the concrete will crack. Concrete layers are always watching the weather because much of what they do depends on the weather.
Another one of these jobs that requires a constant eye on the weather is farming.
Turner, T. P. (2010, January 11). Non-radar IFR: once you're off the beaten path, ATC
Reading, Gwem. "Radar Operator in WW2." Letter. 8 Nov. 2003. N.p.: n.p., n.d. N. pag. BBC WW2 People's War. Web. 23 Apr. 2014.
"Radar during World War II." - GHN: IEEE Global History Network. N.p., n.d. Web. 16 Feb. 2014. .
The weather report calls for below normal temperatures reaching into the low teens with a freezing rain snow mixture. The stores are packed and everyone is scrambling to buy supplies. Every gas station is out of bread, milk and fire wood. A bag of side walk salt cannot be found anywhere. This may be something that you deal with every winter. This type of weather may not be a big deal, or anything to cause panic where you live. But, where I live, this type of weather is a huge deal. We very rarely have to cope with bad weather. We like it that way!
If one was to discuss weather with his neighbor I am sure certain questions would come up. Most of these will deal with rain or in the winter snow, but most questions usually regard something falling, or not falling, from the sky. I think bad weather is talked about more than good weather. During good weather most people just say, "this is good weather," and leave it at that.
In the first world war, there was no such thing as a radar, or any form of scanning device, so that the war was only fought by eyes and ears. Whoever heard, or saw the ships first would have had more time to prepare. As far back as June 1932, there had been Post Office Reports about a plane interfering with radio signals, and re-rediating them. Then Sir Robert A. Waston-Watt, A British Electronics Genius, (the man who invented the stereo with only two speakers) came up the idea of RDF, Radio Direction Finding. With his staff A.F. Wilkins, he was able to submit a paper about a thing called radar as codename, in 1935. It was proved that the theory would work, but with a range of only 8 miles. Then and there started the radar research. By 1939, the Germans also had their own RDF installation, named the Freya. It proved quite effective in picking up British bombers, and they were able to pick up bombers ensemble at 114 kilometers. Although as early as September, Britain had radar stations all over the country,16 altogether to give air raid warnings, but those radar can only give air raid warnings, as it is designed to do. It can by no means radar scan the air and it is so bulky so that it cannot be made portable. The British ASV I (Air to Surface Vessel Mark I) portable radar, (quite bulky, still, even for a ship,) had an extremely short range, and was terribly inaccurate, because of the wavelength used, so it cannot detect small objects, only big . In experiment, the ASV III had used a magnetron oscillator valve, and it had a wavelength of nearly as short as 10 cm, and would have been very accurate for 1941, but the receiver was not as good as it should be, so it had a range of only 6 miles. The early British radar development was always handicapped by its range. In 1941, ASV II was put into mass production, 4000 sets was ordered. It had a range of 12-20 miles, still handicapped by its receiver. It was a lot more practical than ASV I, anyhow, as it was designed for mass production. It was not until 1942, when the U-boats were zooming about everywhere, an ultra breakthrough of ASV III/H2S boosted the British radar industry, a new receiver.
even to work on a farm, you need to have quite a lot of skill. The
...yone wants. Radar is also frequently used by law enforcement for the detection of speeds to see if passing motorists are speeding.
They say cell phones are the easiest way to communicate with one another remotely. Imagine how people could communicate with their family when they are far away, without cell phones? Cell phones give weather conditions. For example, if a person gets an alert or receives the weather condition on his or her cell phone, this helps to warn of situations on the roads. Cell phones help to record incidents like shooting, fighting, or crashes. However, despite the advantages of cellphones, cell phones are a major cause of car accidents. According to the NSC National Safety council) “Cellphone usage causes 1 in 4 car accidents”. On the other hand, people can know the weather conditions without using cell phones on the roads while they’re driving. For example, they can watch television weather before leaving their homes. This can help drivers easily know the situation on the road. When it comes to communicating with people, one can connect people without using cell phones in other ways, for example, by sending a letter or an email to the people whom they want to contact. . Back in the centuries before the coming of the cell phone, people didn’t complain about not having cell phones, but nowadays almost everyone uses cell phones. Is the use of cell phones while driving more important than our lives? No. Using cellphones during driving is very dangerous because it distracts people’s minds. Cell phones should
Furthermore, weather is conditions that occurred very recently or are currently happening at a particular location. For example, people might say, “The sky is really clearing up!” or maybe, “It snowed 6 inches last night.” The current temperature, dew-point, relative humidity, cloud cover, and precipitation all have to do with the weather. The fundamental cause of weather is the effect of the Sun and the Earth due to the fact that
Agriculture—it’s something that not very many people know much about. However, it is important for us to survive. Almost everything in our everyday lives is agriculture-related, from the food you eat to the clothes you wear.
Radio-wave technology is one of the most important technologies used by man. It has forever changed the United States and the world, and will continue to do so in the future. Radio has been a communications medium, a recreational device, and many other things to us. When British physicist James Clerk Maxwell published his theory of electromagnetic waves in 1873, he probably never could have envisioned the sorts of things that would come of such a principle. His theory mainly had to do with light waves, but fifteen years later, a German physicist named Heinrich Hertz was able to electrically generate MaxwellÕs ÒraysÓ in his lab. The discovery of these amazing properties, the later invention of a working wireless radio, and the resulting technology have been instrumental to AmericaÕs move into the Information Age. The invention of radio is commonly credited to Guglielmo Marconi, who, starting in 1895, developed the first ÒwirelessÓ radio transmitter and receiver. Working at home with no support from his father, but plenty from his mother, Marconi improved upon the experiments and equipment of Hertz and others working on radio transmission. He created a better radio wave detector or cohere and connected it to an early type of antenna. With the help of his brothers and some of the neighborhood boys he was able to send wireless telegraph messages over short distances. By 1899 he had established a wireless communications link between England and France that had the ability to operate under any weather conditions. He had sent trans-Atlantic messages by late 1901, and later won the Nobel prize for physics in 1909. Radio works in a very complicated way, but hereÕs a more simple explanation than youÕll get from most books: Electromagnetic waves of different wavelengths are produced by the transmitter, and modulations within each wavelength are adjusted to carry ÒencodedÓ information. The receiver, tuned to read the frequency the transmitter is sending on, then takes the encoded information (carried within the wave modulations), and translates it back into the sensory input originally transmitted. Many of the men who pioneered radio had designs for it. Marconi saw it as the best communication system and envisioned instant world-wide communication through the air. David Sarnoff ( later the head of RCA and NBC) had a vision of Òa radio receiver in every homeÓ in 1916, although the real potential of radio wasnÕt realized until after World War I.
...xpected weather conditions over time, previous weather conditions, possible areas of less deteriorating weather conditions, expected duration of bad weather condition.
Police cars and emergency services used two-way radios in the 1930’s and 40’s but World War II gave
The weather forecasters use probability and statistics just as much if not more than any other field on earth. As weather patterns are not fully understood and are dynamic, analysts have to rely heavily on past weather systems and patterns to “guess'; or estimate the possibility of present weather systems to behave in similar manners. If the probability of its behavior, subject to certain factors, in one manner over another is high forecasters make decisions as to how to advise the public.