Page Layout


The top of the page shows the standard NESDIS banner on the left. On the right is the option to "Log In" if you have previously registered with the CLASS web site. Guest Users may view information and conduct searches but will be prompted to register before ordering data from CLASS. A link to the Home Page is included in the banner area as well as a link to these help pages.

Navigation/Tool Bar

On the left hand side of each page is a navigation area, which allows you to move to various pages within the site as well as to related sites outside of CLASS.

Main Body

To the right of the Navigation/tool bar is the main body of the page. This is where the information about the search criteria, search results, order, user profile, or the user preferences is displayed.

Getting Help

If you are unable to find what you are looking for in these help pages, please contact our help desk at