NASA’s ICESat-2 discovers Antarctic Meltwater Lakes

WHY IN NEWS? American Space Agency, NASA’s ICESat-2 discovered Antarctic Meltwater Lakes recently. ABOUT: Glaciologist Helen Amanda Fricker had made an astonishing discovery in 2007 and found that, a whole hidden network of interconnected lake is found beneath thick Antarctic ice-shelves. She found that, these lakes actively fill and drain. Presence of meltwater beneath ice sheets was known, but such network of an active water system was a breakthrough. She had used data from NASA’s ICESat. This satellite used laser pulses to measure elevation data for ice, clouds & land. How ICESat-2 was used to map lakes? ICESat-2 is the....Read More