Joseph A. Shaw Brentha Thurairajah Kohei Mizutani Cloud statistics measured with a ground-based Infrared Cloud Imager. 1976-1979 2004 IGARSS https://doi.org/10.1109/IGARSS.2004.1370734 conf/igarss/2004 db/conf/igarss/igarss2004.html#ShawTM04