5G can jeopardize weather forecasts

5G can jeopardize weather forecasts

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Even single-satellite disturbances, even with just one satellite, affect a global meteorological image, that is, will affect each of us satellites that observe our planet are loads of loads of passive sensors, mostly measuring the energy they reflect or emit.

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People have guessed what the next days would be “nature signs” – the movement of the clouds, the aureole around the moonlight at night, the bird’s flight and ants’ flow.


Today, we rely on the exact scales and the whole group of satellites to know what the weather will be, not just in the next few hours, but in a week or 10 days. They may not be perfectly accurate, but allow us to plan well for weekends and outdoor activities.

Forecasts are, of course, just as good as raw data used for meteorological modeling, from which prognoses go. Satellites with extremely sensitive sensors “observe” the planet, discovering the subtle changes of wind and water vapor. But the quality of some of these data seems to be endangered by the lethal threat of a little anticipated enemy: some 5G networks.

Where’s the water? To understand how a new generation of wireless networks can harm the weather, we need to look at what’s really “feeding” weather forecasts and what satellites do. Our time is mostly the result of the difference between air masses. The pressure, temperature and humidity of the air in different parts of the Earth are mainly influenced by the sun – the energy being sucked (air heating, water pools, etc.).

All of these factors interact with each other in a complex way, determining the movement of air-that is, the wind, the movement of clouds and the flood of water from them. Remote reading of these differences is a key to exact time predictions, Hackday notes. The satellites that watch our planet are the piles of passive sensors.

It mainly measures the energy that is reflected or radiated from objects on earth. They collect temperature and humidity data by observing the ground through different wavelengths. The pressure is measured mainly by radiometric measurements. The temperature is measured mainly by reading the wavelengths of light – both visible and infrared. However, water vapor is a bit harder to measure.

Here’s the microwave help. And just the weather forecast “collision” with the 5G schedule. The quality of satellite data is threatened by the lethal threat of a slightly anticipated enemy: some 5G networks. All on Earth – plants, soil, surface water and especially atmospheric gases – radiate by microwave radiation. Measuring these signals from the universe is performed by satellites carrying microwave radiometers. These are in fact sensitive radio receivers with microwaves.

Looking at signals with different wavelengths and adding polarization signal information, microwave radiometry can tell us what is happening in the figuratively vertical column of the atmosphere. Water vapor measurement is particularly valuable at 23.8 GHz. However, it may be compromised by the accumulation of interference from the 5G networks that will use close frequencies.

Since microwave radios are mostly passive receivers, they “see” almost everything that emits microwave signals within that range. It may also be that they see thousands of cellular network cells that will be needed to maintain a full 5G network. The loss of weak but important water vapor signal in the sea of ​​”5G noise” is a major issue with regard to weather forecasts.

Effects on the Real World At the annual meeting of the American Meteorological Society in 2019, Sidhart Missra, a NASA Jet Propulsion Laboratory researcher, presented data on how commercial activities may have undesirable consequences for the scientific community. Between 2004 and 2007, satellite microwave radiometers detected a rise in noise in a particular US area. Numerous signals were emitted from the waters of each coast around the Great Lakes.

The signals were a reflection of broadcasting geosynchronous satellites for direct television. The signals actually bounced off the surface and “flooded” the water vapor signals that satellite meteorological observations are trying to measure. Loss of microwave data on a water pawn, even just part of it, can have serious consequences.

But are scientists overwhelmed? Can data loss from such a complex jigsaw puzzle like the weather forecast really have so much impact? Probably yes. It is expected that waterborne data that returns microwave radio equipment, such as the AMSU (Advanced Microwave Sounding Unit) on a number of time satellites, will reduce the time prognosis error by 17 percent. It’s the biggest factor in the whole group of dozens of other ways.

Loss of microwave data on the water pair, even just part of it, can have serious consequences. The disturbances would distort data that predicted the development and movement of powerful hurricanes and storms, which usually carry enormous damage and often lead to human lives. It is of utmost importance whether the forecast will show that a powerful hurricane is moving straight, turning to the southwest or moving towards the sea.

Hundreds of life and destiny of entire cities can depend on it. Is there a way out? Will there really be a 5G negative impact on the weather forecast? It’s too early to say. The frequency with which the fifth generation networks will work is about 26 GHz for Europe, but 24 GHz for auctions are launched in the United States.

This is pretty close to the critical frequency of 23.8 GHz water vapor. The possibility of error is small. Even one place, even with just one satellite, affects a global meteorological image, ie it will affect more or less each of us.

5G can jeopardize weather forecasts

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