Global datasets for duration of frozen ground with snow cover and without snow cover

These are the main datasets associated with the submitted manuscript--Climate change causes functionally colder winters for snow cover-dependent organisms. The datasets include duration of frozen ground with snow cover (Dsc) and without snow cover (Dfwos) for the historical (1982-2014) and future (2071-2100) periods, which are available with GeoTIFF format at 5-km resolution. Dsc and Dfwos are defined as the number of days during the frozen season when frozen ground is covered by snow or not, which are calculated using AVHRR/MODIS snow cover product and NASA MEaSUREs Global Record of Daily Landscape Freeze/Thaw Status dataset.