Улучшит судоходство в Арктике: технологию для отслеживания льдов создали в России

At the Institute of Applied Physics of the Russian Academy of Sciences, an approach has been developed that allows using radio waves reflected from the Earth's surface from GPS and GLONASS satellites to monitor changes in the area of ice cover in the Arctic and Antarctic. This was reported in the press service of the Russian Science Foundation (RSF).

Image source сгенерировано нейросетью grok

The proposed method can be used for mapping ice cover in the Arctic and Antarctic, including for monitoring the Earth's climate and for the needs of the Northern Sea Route. At the same time, the method can be implemented using existing satellite systems and promising Russian developments, which makes its implementation economically viable.

Yuri Titchenko, researcher at the Institute of Applied Physics of the Russian Academy of Sciences

Radiometers, infrared and optical sensors are used to monitor the state of the ice cover. Their accuracy in obtaining data often depends on weather conditions. This prompted scientists to look for alternative methods of observation.

Scientists have proposed using signals from global navigation satellite systems to map ice cover. This became possible thanks to satellites such as the British probe TDS-1, which are capable of capturing reflected GPS and GLONASS signals.

Scientists have noticed that the surface of ice and open sea reflects radio signals differently. Sea ice behaves like a flat surface, while open water, even in a calm state, creates waves. Based on this observation, an algorithm was developed to determine the type of surface by changes in the Doppler spectrum of signals.

The effectiveness of the new method was tested on data from the TDS-1 satellite during observations of the Weddell Sea off the coast of Antarctica and in the Sea of Okhotsk. Practical tests have shown the high reliability of the technology even in difficult weather conditions.

Earlier www1.ru reported that in Russia tested frost-resistant material for strengthening roads in the Arctic.