By extracting a carrot of sediment, researchers were able to go up to 6 millennia before our era to calculate the frequency of tropical cyclones. Unsurprisingly: it has increased since the industrial revolution.
In addition to the fantastic aerial images offered by this Cenote, Taam'ja's entrails may well contain details on the future of the local marine ecosystem and especially on the frequency of tropical cyclones, which could well increase in the coming years, according to a study published on March 14 on Science Advances.
The frequency of tropical cyclones has increased for the past 5,700 years
It is by taking a carrot over 30 meters long that researchers have reached the conclusion that tropical cyclones are more and more frequent and intense. After in -depth examinations, they would have increased in the last 5,700 years.
“” “It is remarkable to note that the frequency of storms which touch earth in the study area has been much higher in the past two decades than during the last six millennia, which clearly testifies to the influence of modern global warming ”, Explain to Live Science Dominik Schmitt, principal author of the study and researcher at the biosedimentology research group at the Goethe University in Frankfurt.
According to the National Museum of Natural History, the sediment carrots make it possible to go back to the climatic conditions of the past. These are cylindrical samples of furniture sediment from the ground with a drilling device, according to a definition of aquaportail. The local and global climatology, the geophysics present and passed, the biology … are among the some information that can be drawn from these samples, according to the French oceanographic fleet operated by Ifremer.
Nine tropical storms in the past 20 years
According to this carrot of sediment recovered in the blue hole, researchers can say that tropical cyclones have seen their intensity specifically increase since the industrial revolution, when humans have started to burn fossil fuels. Nine tropical storms have taken place over the past 20 years… against only 16 every 100 years, during the last six millennia.
The study explains that this sudden increase in tropical cyclones is the result of warming the surface of the oceans on a global scale, due to human activities. And it's not going well: “The nine layers of modern storms from the past 20 years indicate that extreme weather events in this region will become much more frequent in the 21st century”Explained Dominik Schmitt.
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