Spectrometer for Sky-Scanning Sun-Tracking Atmospheric Research (4STAR): Instrument Technology. - Stephen E. Dunagan; Roy Johnson; Jhony R. Zavaleta; Philip B. Russell; Beat Schmid; Connor Flynn; Jens Redemann; Yohei Shinozuka; John Livingston; Michal Segal-Rosenhaimer (Remote. Sens., 2013)