The MODIS Terra MOD10A1 Version 6.1 product provides a global Level-3 daily composite of snow cover and albedo derived from the MODIS/Terra Snow Cover 5-Min L2 Swath 500 m dataset. The data are generated as daily composites and distributed in 10° à 10° tiles projected to a 500 m sinusoidal grid. Each tile contains information on snow cover extent and surface albedo derived from MODIS Terra observations, enabling consistent global monitoring of snow conditions. The terms Version 61 and Collection 6.1 are used interchangeably to refer to this MODIS data release.