Dust plumes blew over the Mediterranean Sea in early April 2013. Thick plumes hovered off the coasts of Libya and Egypt on April 7 and spanned the sea’s eastern shoreline the following day, reaching as far north as Turkey. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this natural-color images on April 7.
http://earthobservatory.nasa.gov/IOTD/view.php?id=80865&src=fb
NOAA 19 Northbound 53° E on 137.10MHz, Multi-Spectral Analysis Enhancement,
Normal Projection, Channel A: 2 (Near Infrared), Channel B: 4 (Thermal Infrared) – DK3WN