Hidden expedition amazon1/20/2024 To the researchers' great surprise, they could see some bubbles rising to 370 metres from the ocean floor. It is actually quite a complicated balance between pressure effects and diffusion of gases that together determine how size and gas composition develop in a bubble, but the net effect for smaller bubbles is that they lose both size and rise velocity with increased distance from the bottom," says Christian Stranne. The methane in the bubbles dissolves in the ocean and therefore they usually gradually decrease in size as they rise towards the sea surface. “At the depths we are working with here, you can expect the methane bubbles to reach at most perhaps 150-200 metres from the seabed. The bubbles rise to the surface of the seaĪnother interesting discovery made during the expedition concerns how high up through the water column the methane bubbles rise. It seems like deep ocean currents are causing sediments to accumulate in this particular area, but we need to do more detailed analyses before we can say anything definitive," says Marcelo Ketzer. The size of the sediment grains in the area and the form of the seafloorgive us an indication. “We already have a pretty good idea of why it looks the way it does. During the expedition, a large number of sediment cores and water samples were collected, and now the researchers hope that further analyses will be able to provide answers to why so much methane gas is released from this specific area. The researchers determined the area's extent to be about 20 square kilometres (equivalent to almost 4,000 football pitches) and it lies at a depth of around 400 metres. How does the system react to, for example, eutrophication or a warmer climate? I knew from one of my previous projects that the methane levels in the sediments in this area are higher than elsewhere in the Baltic Sea, but I never expected methane to bubble out into the sea in this way," says Marcelo Ketzer. “Knowledge about the factors that control how much methane is produced in these deeper areas and where the methane goes is limited. The project is led by Marcelo Ketzer, professor of environmental science at Linnaeus University. The research project, funded by the Carl Trygger Foundation, aims to expand knowledge about methane and its sources and sinks in the oxygen-free environments in the deeper parts of the Baltic Sea. “We know that methane gas can bubble out from shallow coastal seabeds in the Baltic Sea, but I have never seen such an intense bubble release before and definitely not from such a deep area," says Christian Stranne. Christian Stranne, associate professor of marine geophysics at Stockholm University, is surprised by the discovery. The audio production was managed by SomaTone Interactive Audio.The area where the methane leak was discovered is located in the Landsort Deep (Landsortsdjupet), about 30 kilometres southeast of the coastal town Nynäshamn. Hidden Expedition: Amazon features pre-rendered puzzles with many moving parts. Like all Hidden Expedition titles, Hidden Expedition: Amazon relies heavily on the hidden object puzzle. There are many puzzles and hidden object challenges you have to complete in order to solve the game. You must travel through various cities, temples, and ruins in your search for the professor. The only clue you have is an old, tattered map that references an ancient Beetle Temple. In Hidden Expedition: Amazon, you play the role of worldwide adventurer headed deep within the Amazon Jungle in search of a lost professor.
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