1. Variation of daily solar radiation in North America during the extreme months;Bennett;Archiv fur Meteorologie, Geophysik und Bioklimatologie, Ser. B,1975
2. The spatial variability of solar energy in Arizona. Final Report to the Arizona Solar Energy Commission;Brazel,1981
3. Monthly and seasonal spatial variability of precipitation: Phoenix and environs;Brazel,1979
4. ARL models of global solar radiation;Cotton,1979
5. Evaporation atlas for the contiguous 48 United States;Farnsworth,1982