Upper (left to right):
- US steam frigate Mississippi, in the Gulf of Mexico, March 1847: Library of Congress, Prints & Photographs Division [reproduction number LC-USZC2-3129] (originally published by N. Currier, New York, 1848).
- Florida peninsula, January 1985: NASA Space Shuttle Earth Observations Photography database [photo STS51C-44-0026].
- TAO (Tropical Ocean Atmosphere) buoy and anemometers on NOAA ship Ka'imimoana. Photo by Jason Poe, courtesy of TAO Project Office.
- Cloud image based on the titles of ~950 papers that cite ICOADS. Original word art by David I. Berry, 2014.