Extended Edited Cloud Reports from Ships and Land Stations over the Globe, 1952-1996 (NDP-026C).
Cloud Climatology for Land Stations Worldwide, 1971-1996 (NDP-026D).
Gridded Climatology of Clouds over Land (1971-96) and Ocean (1954-2008) from Surface Observations Worldwide (NDP-026E).
To access ftp data from terminal:
password: your email address