The International Satellite Cloud Climatology Project (ISCCP) was established as the first project of the World Climate Research Program (WCRP). Since its inception in 1982, there have been two phases: 1983–1995 and 1995–2009. The project is responsible for collecting and analysing satellite radiance measurements of weather. It infers clouds' global distribution and properties, along with their diurnal, seasonal, and interannual variations. The results are studied to understand clouds in the climate, including their effects on radiative energy exchanges and their role in the global water cycle. These datasets provide a systematic view of cloud behavior.