Space
Steam and Ash Plume over Tinakula Island
Staff Reporter
First Posted: Feb 18, 2012 03:31 PM EST
Tinakula is a small, volcanic island in the South Pacific, located about 2,300 kilometers (1,400 miles) northeast of Brisbane, Australia. This natural-color satellite image (top) shows a plume of volcanic gas, possibly mixed with a bit of ash, rising above the island's summit.
On February 13th and 14th, 2012, NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) detected heat signatures on Tinakula, and a small plume was apparent in visible imagery (lower image). Over the past decade satellites have detected intermittent "thermal anomalies" on the island that suggest eruptions have taken place, but eyewitness observations are infrequent.
Around the island, the reflection of sunlight on the ocean-sunglint-gives the surface a milky appearance that makes the wave patterns readily visible.
These images were collected by the Advanced Land Imager (ALI) on the Earth Observing-1 (EO-1) satellite (top) and MODIS on the Terra satellite on February 14, 2012.
Provided by NASA
See Now:
NASA's Juno Spacecraft's Rendezvous With Jupiter's Mammoth Cyclone
©2024 ScienceWorldReport.com All rights reserved. Do not reproduce without permission. The window to the world of science news.
More on SCIENCEwr
First Posted: Feb 18, 2012 03:31 PM EST
Tinakula is a small, volcanic island in the South Pacific, located about 2,300 kilometers (1,400 miles) northeast of Brisbane, Australia. This natural-color satellite image (top) shows a plume of volcanic gas, possibly mixed with a bit of ash, rising above the island's summit.
On February 13th and 14th, 2012, NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) detected heat signatures on Tinakula, and a small plume was apparent in visible imagery (lower image). Over the past decade satellites have detected intermittent "thermal anomalies" on the island that suggest eruptions have taken place, but eyewitness observations are infrequent.
Around the island, the reflection of sunlight on the ocean-sunglint-gives the surface a milky appearance that makes the wave patterns readily visible.
These images were collected by the Advanced Land Imager (ALI) on the Earth Observing-1 (EO-1) satellite (top) and MODIS on the Terra satellite on February 14, 2012.
Provided by NASA
See Now: NASA's Juno Spacecraft's Rendezvous With Jupiter's Mammoth Cyclone