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frequently asked questions

Q: I try to refresh or reload the image, but an older image remains. What is wrong?

A: Go to the browser help page for a detailed explantion of this type of proplem.

Q: I am having trouble with the annimation. Any suggestions?

A: We use a Java applet for the animation that was written by the University of Wisconsin. The animation applet even has it's own web site. As part of that site there is a section on using Java applets in browsers. Go to the following site for more information on problems:

University of Wisconsin Applet Annimation Help Page

Home Page of the Applet's web site

Q: I would like to obtain other satellite images and/or other weather parameters/observations for events days ago or events weeks, months or years ago.

A: Visit the National Climatic Data Center (NCDC) at

Q: What is Z, GMT, or UTC time mean.

These all mean the same. "Z" is "ZULU" time, GMT is Greenwich Mean Time, and UTC is Coordinated Universal Time.

Q: I would like satellite data to determine ocean sea surface temperature.

A: I suggest you check out the Satellite Active Archive at You can order polar orbiting satellite sectors based on your own coordinates and receive up to 10MB per order free via online transfer. The data are current and may be more useful than GOES data for sea surface temperature analysis.

Q: How do hurricanes form? How are hurricanes classified? How are they named? When do they retire the names? Which hurricane in 1995 hit the US ?

A: Sorry we don't have the time or complete knowledge to answer all your questions in detail. Please refer to the National Hurricane Center home page at> for information on hurricanes.

Q: What is the difference between InfraRed and Visible images.

A: Go to this page for details on Visible/InfraRed images

Q: Is there a Tutorial on Remote Sensing Through Satellite Technology.

A: Here is a Power Point Presentation on the subject of Remote Sensing Power Point Presentation (12MB)

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