NASA's CALIPSO satellite mission is uniquely suited to provide updated information about ash plume height and location. Shown here are CALIPSO, or Cloud Aerosol–Lidar and Infrared Pathfinder Satellite Observations, data profiles from Australia and New Zealand with model trajectories.
NASA
<a rel="nofollow" class="external free" href="http://www.nasa.gov/larc/volcanic-ash-aviation/index.html">http://www.nasa.gov/larc/volcanic-ash-aviation/index.html</a>