It is not the first day that such a phenomenon asglobal warming. However, considering how long, according to scientists, this process is going on, we should have clearly felt his presence. According to the editors of the journal Science, the waters of the Pacific may well be in charge of “maintaining balance”. The fact is that, despite the fact that its surface layers keep the temperature at about the same level, the depths of the ocean are cooling at the same time, which in general levels global climate change.
Such data was obtained by experts from the Oceanographic Institute at Woods Hole and Harvard University.
“Climate changes over time. This is a natural process. ”Says one of the authors, Peter Huybers, a professor of planetary and earth sciences at Harvard University. “The water that is now at the bottom of the Pacific Ocean was on the surface even before the beginning of the Little Ice Age, in the 9th-12th centuries. When the temperature began to fall, it became colder and denser, dropping to the bottom. Our goal was to develop a model of how the internal characteristics of the oceans respond to climate change on the surface. ”
Scientists have created a computer simulation of theseprocesses and she confirmed their guesses. But this was not enough and they used meteorological data and temperature measurements of the deep layers of the water of the Pacific, taken in the 1980s. After comparing these indicators with modern ones, it turned out that the cold layers are located at a depth of two kilometers and deeper. And they continue to cool.
“Deep layers compensate for about 30% of the heat,absorbed by the oceans in the twentieth century. This is about the amount that is needed to bring the ocean in balance with the atmosphere. The air temperature rises because of greenhouse gases, but the depths of the ocean compensate for this by cooling the water. Understanding these processes will allow us to better understand global warming processes. ”
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