Massive Greenland Tsunami Confirmed: Satellite Spots Dickson Fjord Seiche!
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Eish! Scientists have finally confirmed what caused those weird seismic signals that shook the whole world back in September 2023. Remember that jol? Turns out it was a massive seiche – basically, a skyscraper-sized tsunami – sloshing back and forth in a fjord in Greenland!
The Mystery of the Global Rumble Solved
For nine days, seismic monitors picked up a strange, repeating signal. It was like nothing they'd ever seen before. Then, a month later, it happened again. Scientists suspected it was a megatsunami causing a seiche (a standing wave) in a Greenland fjord, but they needed proof.
Now, thanks to fancy new satellite data, they've actually seen it happening! This confirms the seiche theory and answers that age-old question: if a seiche happens in a remote fjord and no one's around to see it, does it shake the planet? The answer, my friend, is yes!
Melting Glaciers and Mega-Tsunamis: A Climate Change Warning
So, what caused this monster wave? According to the analysis, melting glaciers triggered two massive landslides into Dickson Fjord in East Greenland. These landslides created powerful tsunamis that sloshed back and forth for days, reaching heights of 7.4 to 8.8 meters (that's like, almost three stories high!).
Satellite Tech Reveals the Unseen
This discovery highlights the power of satellite technology. As ocean engineer Thomas Adcock from the University of Oxford puts it, "This study is an example of how the next generation of satellite data can resolve phenomena that has remained a mystery in the past."
- Satellites are now helping us see the previously unseen.
- Machine learning is vital for interpreting complex oceanic data.
- Climate change is increasing the risk of extreme ocean events.
This research also underscores the importance of understanding these events to better prepare for future, climate-change-driven extremes. Lekker stuff, but scary at the same time!