This paper summarizes changes on Mars which occurred in 2014. Images recorded by the Mars Reconnaissance Orbiter’s MARCI camera (hereafter MRO) and those made from the Earth are examined. It is concluded a spiral-shaped cloud of water ice crystals developed and moved eastward at an average speed of 1.7 m/s, a temporary isolated bright patch in Cecropia developed and one or more dust storms developed at the NPC edge near 83° N, 320° W. Measurements of the boundary of a white area in Hellas are consistent with it not changing as the year, season or time of day progressed. This white area is probably a dry ice frost coating.
Schmude, Richard W. Jr.
"Some Recent Studies of Mars: the North Polar Cap, Cecropia and Hellas,"
Georgia Journal of Science, Vol. 72, No. 2, Article 4.
Available at: https://digitalcommons.gaacademy.org/gjs/vol72/iss2/4