Imaging infrared on the surface is not very difficult; you can install the most beautiful sensors anywhere. Not so in the Southern Hemisphere: Feelings can be placed on small, lonely islands, so the coverage is more difficult.
And, den Ouden notes, outside the ocean “huge waves” create unnecessary noise. Some of these irritating infrasound occurs when the tides travel over the ocean. den Ouden states: “The sea begins to recede. The sea acts as a great language, striking a chord in the air that flows over and over the water, heading inland, like invisible waves. Some oceanic infrasounds are harmless but extremely effective: ocean motion causes atmospheric disturbances that emanate directly from the sky. But the waves have proved to be extremely difficult to detect in the long run.
These infrasound waves, technically known as microbaroms, are called “the voice of the sea. ” Many researchers want to destroy it. “We are trying to eliminate the microbarom mark, because we are happy with the explosion,” Iezzi said.
Ideally, oceanic infrared detectors not only fill a void, but also record microbaroms so that, with the help of filters, they can be removed. But where can you put these lights? Boats would not work. “Their problem is that they always go up and down,” says Lamb — and that can interfere with the song. Balloons have long been used for land-based infrared scanning, but their navigation techniques may be unpredictable. (However, they can be useful for recording lightning, earthquakes, and volcanic eruptions. on Venus, because the surface of the Earth’s ugly twins is so hot that any surface of the earth melts quickly. Or, at least, very hot.)
The open sea is “the most difficult place to record,” says Bowman, “so difficult, in fact, that if you had asked me before looking at the paper, I would have said it was impossible.”
As it happens, Samantha Patrick, a specialist in marine biology at the University of Liverpool, was intrigued by the concept of an underwater bird. After a discussion with den Ouden and his closest associates on meteorology and astronomy, he came up with another idea: Why not incorporate microbarom sensations into birds? Not any birds: wandering albatrosses. Their wings, which may reach 30 feet[11 m]high, are the tallest of all human beings. This allows them to spend more time floating on open air surface water, which saves energy when they go out looking for food. Not only do they fly in many distant waters, but they also do not detect in water, so any sensors connected to them will not get too wet.
In short, the researchers developed tiny infrasound sensors and put them in pockets – packets less heavier than remote TVs. While it may be fun to see in your mind’s eye the bags as a student carries a backpack, that would be unreasonable. Instead, the bags were simply fastened to the back of avian assistants with an adhesive tape.
Last year, the group traveled to the Crozet Islands, a small area in the French Antarctic where migratory albatrosses live. But, pray let me tell you, how do you get an albatross to join? By a a very special hug, obviously — which prevents punctures and punctures that can be harmful. Patrick, who assisted the team in the study, stated: “They do not have wild animals — and they do not have any wildlife. “So you just get there, and then I put your hand on his bill, and then you have to hug him, because he ‘s so big.