1. Alexander, R.C. and R.L. Mobley, 1974: Monthly average sea surface temperatures and ice-pack limits on a 1° global grid. Rand Corporation Report, Santa Monica, California, 90406, 30pp.
2. Asselin, R., 1972: Frequency filter for time integration,. Mon. Wea. Rev., 100, 487-490.
3. Businger, J.A., J.C. Wyngaard, Y. Izumi and E.F. Bradley, 1971: Flux-profile relationship in the atmospheric surface layer. J. Atmos. Sci., 28, 181-189.
4. Chang, C.B., 1979: On the influences of solar radiation and diurnal variation of surface temperatures on African disturbances. Rept. No. 79-3, Dept. of Meteorology, Florida State University, Tallahassee, Florida, 32306, 157pp.
5. Cressman, G.P., 1959: An operational objective analysis system. Mon. Wea. Rev., 87, 367-374.