The main NSF Unidata web site will be undergoing a transition to a new platform beginning Friday, September 5, 2025. During this transition, the site may be intermittently unavailable. We expect the new site to be operational by the end of the day Friday.

The NSF Unidata Program Center is pleased to welcome new members to the program's advisory committees. Committee members serve three-year terms, meeting twice each year to provide feedback on the effectiveness of the NSF Unidata Program and advise staff on issues facing the university community. Appointments reflect the range of large and small colleges and universities with undergraduate and graduate emphases where NSF Unidata systems are in use.