According to new research by scientists at Tsukuba University and the Japan National Institute of Advanced Industrial Science and Technology, heat from our sun promotes changes in the atmosphere temperature on Earth and changes in the atmosphere temperature on Earth.
The sun is seen by solar orbiter in extreme ultraviolet rays from a distance of approximately 75 million km. This image is a mosaic of 25 individual images taken on March 7, 2022 by the high-resolution telescope of an extreme ultraviolet imager (EUI) instrument. The image, taken at a wavelength of 17 nanometers in the extreme ultraviolet region of the electromagnetic spectrum, reveals the corona, the upper atmosphere of the sun, with a temperature of about 1 million degrees Celsius. Image credits: ESA/NASA/SOLAR ORBITER/EUI Team/E. Kraaikamp, Rob.
Seismic studies have revealed many of the fundamentals of earthquakes: the tectonic plates move, strain energy accumulates, and that energy is ultimately released in the form of an earthquake.
However, when it comes to predicting them, there is still much to learn to evacuate cities before a catastrophe like the 2011 magnitude 9.0 Tōhoku earthquake
In recent years, research has focused on possible correlations between the sun or moon and seismic activity on Earth, with several studies pointing to tidal or electromagnetic effects that interact with the Earth's crust, core, and mantle.
In a new study, Matheus Henrique Junqueira Saldanha and his colleagues explored the possibility that solar-induced climate could play a role.
“Solar heat can promote changes in atmospheric temperature, which can affect rock properties and groundwater movements, among other things,” said Dr. Junqueira Saldanha.
“Such variations can make rocks more brittle and more prone to breaking, for example. And changes in rainfall and snow thaw can change the pressure on the boundaries of the tectonic plate.”
“Those factors may not be the main factors that cause earthquakes, but they may still play a useful role in predicting seismic activity.”
Using mathematical and computational methods, researchers analyzed seismic data along with solar activity records and surface temperatures on Earth.
Among other findings, they observed that when the surface temperature of the earth was included in the model, predictions of particularly shallow earthquakes are more accurate.
“That makes sense because heat and water mostly affect the upper layers of the Earth's crust,” said Junqueira Saldanha.
The findings suggest that solar heat transfer to the Earth's surface affects seismic activity, but this is only a small measure, and incorporating predictions of solar activity into a detailed earth temperature model could help issue seismic predictions.
“It's an exciting direction and I hope our research will shed some light on the larger picture of what causes earthquakes,” said Dr. Junqueira Saldanha.
study Today I'll be appearing in the journal chaos.
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Matheus Henrique Junqueira Saldanha et al. The role of solar heat in seismic activity. chaos 35, 033107; doi:10.1063/5.0243721
Source: www.sci.news
