Weather prediction models can also forecast satellite displacements | Science & Technology

Researchers at the Institute for Atmospheric and Earth System Research (INAR) at the University of Helsinki have found that modern weather models can accurately predict the energy that Earth emits and reflects into space, which directly affects the movements of low Earth-orbiting (LEO) satellites. By leveraging these models, the researchers gained insights into how LEO satellites respond to weather events below, such as tropical cyclones with tall and reflective clouds. The results were published in the Journal of Geophysical Research in April.

In the study, the researchers utilized numerical weather models. They are sophisticated computer simulators that predict future atmospheric conditions based on current observations and laws of physics.

“Numerical weather models not only simulate weather patterns but also calculate various parameters, including the Earth’s energy emissions and reflections under various weather conditions. By analysing these simulations, we sought to understand how changes in weather, such as cloud cover and storms, influence the movement of satellites, affecting their ability to fulfil their intended duties,” says Sanam Motlaghzadeh, lead author of the study and doctoral researcher at INAR, funded by the Nessling Foundation.

Improved satellite operations

The significance of the findings lies in their potential to enhance satellite tracking and control, improving the efficiency and reliability of satellite operations.

“Understanding how weather affects satellites also enhances the accuracy of satellite-based measurements used in climate studies. These findings address a critical challenge in satellite data reliability, namely, determining the precise orbits of satellites, on which the weather events have effect,” Motlaghzadeh explains.

Satellites play a crucial role in monitoring vegetation, tracking water resources, and observing glacier evolution through various measurement techniques. These measurements, including image capture and…


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