NASA’s Antarctic Flyover Reveals Melting Continent
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“NASA is conducting an airborne survey of how ice in Antarctica is responding to a changing climate. The scale of Mario Tama’s aerial views of Antarctica is at once stunning and humbling — humanity can seem like an insignificant development in face of these endless landscapes. The paradox, though, is that as vast and overwhelming as the Antarctic may be, humans may be instrumental in the changes affecting it. For the past eight years, NASA’s Operation IceBridge has been tracking how polar ice is responding to climate change. Scientists studying the data collected on the thickness and shape of Antarctic snow and ice believe that the West Antarctic Ice Sheet may be in irreversible decline. Above: A section of ice near the coast of West Antarctica is viewed from the window of a NASA Operation IceBridge airplane on Oct. 31.
Mountains poke out from a section of the West Antarctic Ice Sheet on Oct. 28 during a NASA flight over Antarctica. The IceBridge mission for Antarctica is based in Punta Arenas, a city at the southern tip of Chile. From there, IceBridge is carrying 12-hour flights back and forth to Antarctica, covering most of the western section of the frozen continent. The region is experiencing the fastest changes and is Antarctica’s biggest contributor to sea level rise. NASA and University of California, Irvine (UCI) researchers have recently detected the speediest ongoing Western Antarctica glacial retreat rates ever observed. NASA aircrew members work inside the cockpit of an IceBridge DC-8 research airplane on Oct. 27 while in flight off the coast of Antarctica. Onboard the plane is a laser altimeter that records minute changes in the height of the ice surface from one year to the next. Accompanying the laser are three radars that analyze the elevation and layer composition of the snow and ice, as well as the shape of the land underneath.”
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