NASA ALI imagery of the Holuhraun fissure, near Bardarbunga, September 2, 2014 at 21:18 UTC

First high resolution satellite imagery of the Holuhraun fissure, seen in NASA ALI imagery. Below are Red, Green and Blue composites of the different ALI channels. These are 30 m resolution data in the Shorty Wave Infrared. Note from the RGB composite of channels 7, 6 and 5 that the south-west portion of the fissure shows up with the strongest return signals. As this is at shorter wavelengths, then this part of the fissure is likely the most thermal active at the time of the overpass.

Fissure is 4.5 km along at the time of the data collected, September 2, 2014 at 21:18 UTC

RGB composite of ALI channels 7, 6 and 5, September 2, 2014 21:18 UTC

RGB composite of ALI channels 8, 7 and 6, September 2, 2014 21:18 UTC

RGB composite of ALI channels 9, 8 and 7, September 2, 2014 21:18 UTC

Google Earth overlay of the RGB composite of ALI channels 7, 6 and 5, September 2, 2014 21:18 UTC

Google Earth overlay of the RGB composite of ALI channels 8, 7 and 6, September 2, 2014 21:18 UTC

Google Earth overlay of the RGB composite of ALI channels 9, 8 and 7, September 2, 2014 21:18 UTC

Google Earth overlay of the transparent RGB composite of ALI channels 9, 8 and 7, September 2, 2014 21:18 UTC

Below is the RGB image from Channels 7, 6 and 5 with the transparent imagery from 9, 8 and 7 on top. The red oval highlights the region where the signals are strongest in the shorter wavelength data.

Thanks to USGS Earth Explorer site for the access to the data http://earthexplorer.usgs.gov/