NOAA Climate Data Record (CDR) of Northern Hemisphere (NH) Snow Cover Extent (SCE), Version 1. CLIMATE APPLICATIONS: Snow cover and hydroclimate studies Snow-atmosphere studies Snow-sea ice studies Seasonal cycle analysis Forced model simulations Model intercomparison/validation. OFFICIAL CITATION: Cite this dataset when used as a source: Robinson, David A., Estilow, Thomas W., and NOAA CDR Program (2012):NOAA Climate Date Record (CDR) of Northern Hemisphere (NH) Snow Cover Extent (SCE), Version 1. [indicate subset used]. NOAA National Climatic Data Center. doi:10.7289/V5N014G9 [access date].