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  • Understanding Diurnal Variability of Precipitation through Observations and Models (UDVPOM) x
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Donald Wylie

deficits at 1400 LT also appear in northern Canada, eastern Europe, and the east Asian coast. The largest depiction of diurnal cycles is the cloud-cover deficits over the eastern tropical oceans mainly in the Southern Hemisphere, which is the austral summer season. A large diurnal cycle also appears in the eastern Indian Ocean next to the coast of Australia. 3. The affect of zonal averaging The diurnal cycles of cloud cover appear in zonal averages although their magnitude is tempered from the regional

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R. E. Carbone and J. D. Tuttle

Ahijevych 2007 ; Levizzani et al. 2006 ; Jiang at al. 2006 ; Janowiak et al. 2007 ; Keenan and Carbone 2008 ; Laing et al. 2008 ) have extended our understanding of phenomena that underlie the diurnal cycle of warm-season rainfall. Among recent findings, it has been determined that several continents and countries (e.g., China, Africa, South America, Europe, Australia, and India) are frequented by the diurnal excitation of propagating convection. With few exceptions these regions are located in the

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T. N. Krishnamurti, C. Gnanaseelan, A. K. Mishra, and A. Chakraborty

parameterization schemes are used to construct multimodel ensemble forecasts with the T170 FSUGSM. Five-day-long forecasts were carried out with all six versions of the model starting at 1200 UTC 1 May 2001 and continuing until 1200 UTC 31 August 2001. Initial conditions were extracted from the 40-yr European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA-40). Sea surface temperature (SST) boundary conditions were obtained from the Reynolds and Smith (1994) weekly datasets and

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