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| Gulf of Maine Aquarium Home Page | Space Available Home Page |
Updated October 7, 1998.
Copyright 1998, Gulf of Maine Aquarium.
Please email comments or questions to Space@octopus.gma.org
In addition to working with still images, NIH Image is able to combine several images to create an animation. The images used for this activity were taken following the eruption of Mt. Pinatubo in 1991.
Scientists tracked the emission of sulphur dioxide into the atmosphere during the days following the eruption. When sulphur dioxide mixes with water, sulfuric acid (acid rain) is formed. While environmental groups decry the amounts of acid rain produced by industry, volcanoes are a natural source.
The images for this activity are available from the Aquarium's web site. The images were originally produced at NASA's Goddard Space Flight Center.
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1. Open the images from NIH Image by choosing File/Open and selecting the folder with the images. Check the box marked Open All and then press Open to open all of the images in the folder at once. 2. With the images open on the desktop move to the Stacks menu and select Windows to Stack. This command will stack a series of images. Choose Stacks/Animate and the series of images will play back like a movie. If the loop is moving too quickly, press 1 on the keyboard to slow the loop. Nine is the fastest the loop will run, with 2-8 representing increasing speeds. To stop the loop, click once on the stack. The more images you use, the more realistic the animation will be. The amount of memory in your computer will limit the number of images possible to combine in one animation. The Stacks/Next Slice and Stacks/Previous Slice commands allow browsing of the individual images. The stack can also be divided back into the separate files. |
Other animation opportunities include tracking hurricanes and seasonal fluctuations in phytoplankton levels.
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| Gulf of Maine Aquarium Home Page | Space Available Home Page |