This animation is a mosaic of cloud cover data taken by several different satellites in the infrared band. Instead of showing a global composite, it is cropped to highlight the Atlantic Ocean. One of the most prominent cloud features during this time was Hurricane Erin.
This animation shows a composite over the Atlantic Ocean of cloud cover data taken from the infrared sensors of several different satellites during September 2001. Hurricane Erin progresses from the middle of the Atlantic Ocean to near the eastern coast of the United States.
GCMD keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 18.104.22.168.0