by Konstantinos Kourtidis, Demokritus University of Thrace, Xanthi, Greece
Mirage image. This looks like the so-called mock mirage to me (although mock mirages are usually attributed to the setting sun). Mock mirages arise when one views the horizon while one is above a temperature inversion. Here, the island Thassos is viewed from Kavala.
Konstantinos Kourtidis (distributed via imaggeo.egu.eu)