Global three-hourly cloud products as produced for the International Satellite Cloud Climatology Project (ISCCP) at the Goddard Institute for Space Studies in New York. The data on are the ISCCP Stage D1 data (ISCCP-D1), at 280 km spatial resolution. There are 202 variables contained within the dataset, which is at three-hourly temporal resolution. The data available at the time of publication begin in July 1983 and extend through to December 1999. This dataset is public.