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2nd January 2015 21:37
Link to Post #61
Re: What most likely is controlling weather worldwide, the tech
Hi Nick - thanks again for mentioning the numerous monitoring stations and observers.. What I am working on from the OP in this thread is how nanoparticles are important with nucleation (forming larger particles which can become visible) and how larger particles at the dew point can hold moisture, and obviously get heavy (mass continues to build)..
Folks see things in the sky and attempt to make sense out of it, and often times trust a conspiracy doctrine believing that anyone with smarts and authority are part of the bad guys, imho.. I think there are brilliant people who don't buy the conspiracy spin but are seeing anomalies, and are reaching for answers.. Weather extremes, things out-of-the norm is going to generate dialog, what could it be..
Having the tools and background means one can have the capacity for sorting through technical jargon to understand when one is hearing a buzz word if it is relevant or not.. a good curiosity as to what's happening and why is a good motivation.. and of course experimenting with the subject matter gives one practical over theoretical.
The energy from the Sun and volcanic activity are the driving factors on earth.. Those are the driving factors altering the weather fronts, cold and warm.. The PDF in the post above is pretty good in explaining to a new pilot what they have to deal with with weather issues, and clouds are a big one..
Weather radar is going to see the moisture pretty well, and explaining to folks to see it, it has to reflect off it, not be absorbed.. To be absorbed means it can absorb energy and then change state (to a higher temperature).. So I find it humorous (and a bit sad) that there are folks using pseudo-tech jargon, to woo the masses.. People then believe the pseudo-jargon and then with that small amount of perceived 'knowledge' spread it.. they believe they know something that explains in a dialog they can understand, the unknown..
In my threads I try to bring in history, background and present a lot of the buzzwords in a friendly manner.. Techno jargon tho is sometimes hard to deal without because of the immense amount of time needed to explain in plain English for instance - the jargon is developed out of the schooling and training needed to convey complex concepts.. the innovative teacher will look for simple analogies to make rapid bridging steps with the student, and at the last minute toss in, oh by the way here is the jargon for what we just described... and then science has no fear, if the jargon is understood..
Its also interesting the haarp conspiracy seems to cycle every few months. The longest cycle in the conspiracy seems to be every 8 months or about 6 months, two seasons.. In the major changes of the seasons weather anomalies appear more prevalent, so people go looking for why, and well there's the explanation out there with the drama in the haarp or any other unknown about science..
--Bob
Last edited by Bob; 2nd January 2015 at 21:42.
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2nd January 2015 21:47
Link to Post #62
Re: What most likely is controlling weather worldwide, the tech
Understanding RADAR and absorption frequencies and reflection frequencies - an ultra simple table
Doppler radar can be divided into several different categories according to the wavelength of the radar. The different bands are L,S,C,X,K. The names of the radars originate from the days of WWII.
L band radars operate on a wavelength of 15-30 cm and a frequency of 1-2 GHz. L band radars are mostly used for clear air turbulence studies.
S band radars operate on a wavelength of 8-15 cm and a frequency of 2-4 GHz. Because of the wavelength and frequency, S band radars are not easily attenuated. This makes them useful for near and far range weather observation.
The National Weather Service (NWS) uses S band radars on a wavelength of just over 10 cm. The drawback to this band of radar is that it requires a large antenna dish and a large motor to power it. It is not uncommon for a S band dish to exceed 25 feet in size.
C band radars operate on a wavelength of 4-8 cm and a frequency of 4-8 GHz. Because of the wavelength and frequency, the dish size does not need to be very large. This makes C band radars affordable for TV stations. The signal is more easily attenuated, so this type of radar is best used for short range weather observation. The frequency allows C band radars to create a smaller beam width using a smaller dish.
** C band radars also do not require as much power as an S band radar. The NWS transmits at 750,000 peak pulse watts of power for their S band, where as a private TV station such as KCCI-TV in Des Moines only broadcasts at 270,000 peak pulse watts of power with their C band radar.
X band radars operate on a wavelength of 2.5-4 cm and a frequency of 8-12 GHz. Because of the smaller wavelength, the X band radar is more sensitive and can detect smaller particles. These radars are used for studies on cloud development because they can detect the tiny water particles and also used to detect light precipitation such as snow. X band radars also attenuate very easily, so they are used for only very short range weather observation. Also, due to the small size of the radar, it can therefore be portable like the Doppler on Wheels.
(DOW) Most major airplanes are equipped with an X band radar to pick up turbulence and other weather phenomenon. This band is also shared with some police speed radars and some space radars.
K band radars operate on a wavelength of .75-1.2 cm or 1.7-2.5 cm and a corresponding frequency of 27-40 GHz and 12-18 GHz. (Water strong microwave energy absorption present in the range of 19-26 gigahertz)
This band is split down the middle due to a strong absorption line in water vapor. This band is similar to the X band but is just more sensitive. This band also shares space with police radars.
** above note - NEXRAD peak power 750KW corresponds to an actual power level at the klystron (a type of radar power source) is about 1300 watts maximum.. That is minuscule really.
Last edited by Bob; 9th October 2015 at 05:42.
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2nd January 2015 22:23
Link to Post #63