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Tag: plume

Anak Krakatau: Lightning frenzy points to scale of volcanic plume

Anak Krakatau: Lightning frenzy points to scale of volcanic plume

Science
The 2018 eruption of Anak Krakatau in Indonesia was remarkable in many ways.It will be remembered, obviously, for the sudden flank collapse that triggered the tsunami which killed over 400 people on the nearby coastlines of Sumatra and Java.But the event also has been the source of many scientific insights that could inform future hazard assessments.And a new possibility is the potential for the frequency of lightning seen at an eruption to give a simple guide to the height of a volcano's towering plume.It's information that could be of interest to airlines trying to find safe routes for their planes.Giant blocks from Anak Krakatau litter ocean floor Anak Krakat...
Four new plume moth species identified in the Bahamas

Four new plume moth species identified in the Bahamas

Science
June 7 (UPI) -- Scientists have identified four new species of plume moths in the Bahamas. Plume moths are a family of small moths with uniquely modified wings. Plume moths are named for the fringelike scales that adorn their wings. When extended, the outline of the mosquito-sized moths resembles a tiny star. There are now 23 known plume moths in the Bahamas. Several of them -- including the four described this week in the journal Insecta Mundi -- would likely still be fluttering around in anonymity if it wasn't for Deborah Matthews. Matthews, a biological scientist at the Florida Museum of Natural History, has been conducting plume moth expeditions and field studies in the Bahamas since 1987. "They were just so unique," she said in a news release. "It's the symmetry that really gets yo...
California fires: Sentinel satellite tracks wildfire smoke plume

California fires: Sentinel satellite tracks wildfire smoke plume

Science
Europe's new Sentinel-5P satellite has captured a dramatic image of the smoke billowing away from the devastating California wildfires.It is a powerful demonstration of 5P's ability to sense the atmosphere. The plume is seen to sweep westwards out over the Pacific Ocean near Los Angeles and then turn north towards the State of Oregon. The image, taken on Tuesday, was shown at this week's annual meeting of the American Geophysical Union. It is the first time that data from the brand new UK-Dutch-built Sentinel has been presented at a research conference. Media playback is unsupported on your deviceThe mission was only launched on 13 October and has been engaged in calibration ever since; full operational service is still some months away. When that happens, it will be combing the atmosphere...