The ICESat L4 Seasonal Gridded Sea Ice Thickness, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).
On Wednesday, May 15 from 9:00 a.m. to Thursday, May 16 at 5 p.m. (US Mountain Time), the following data collections may not be available due to an extended planned system maintenance: ASO, AMSR Unified, AMSR-E, Aquarius, High Mountain Asia, IceBridge, ICESat/GLAS, ICESat-2, LVIS, MEaSUREs, MODIS, Nimbus, SMAP, SnowEx, SSM/I-SSMIS and VIIRS. Users of the SMAP near real-time products should use the Persistent HTTPS File System for data access.