On Monday, 11 July from 3:00 p.m. through Wednesday, 13 July until 5:00 p.m. (USA Mountain Time), NSIDC data distribution, services, and Web site will be unavailable to accommodate a major upgrade to our data center. We apologize for any inconvenience this may cause you. Need to talk to us? You can always contact our friendly User Services Office at firstname.lastname@example.org or + 1 303.492.6199.
Southern Hemisphere long-term snow cover frequencies (1987-2003) derived from SSM/I-derived SWE frequency of occurrence. Areas with "likely" snow are limited to the Andes Mountains region and New Zealand. Frequency thresholds are a function of month (20% for October through May, 7% for June through September). These frequency maps are used for Southern Hemisphere processing.