Service Interruption

The NSIDC Web site and data services are currently having intermittent problems and may be unavailable. We are working to restore these services as soon as possible and apologize for any inconvenience this may cause. Please contact NSIDC User Services for assistance.

Contact Us

User Services and general information:

Form: Contact NSIDC User Services

Phone: +1 303.492.6199
Fax: +1 303.492.2468

Mailing address:

National Snow and Ice Data Center
University of Colorado
Boulder, CO 80309-0449 USA

We strive to acknowledge all correspondence within one working day. We are open from 9:00 A.M. to 5:00 P.M., U.S. Mountain Time, Monday through Friday, excluding U.S. holidays.

Members of the press: or
+1 303.492.1497