نتایج جستجو برای: grell
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We analyzed diurnal variations in precipitation, surface pressure, and atmospheric static energy over the United States from observations and NCAR regional climate model (RegCM) simulations. Consistent with previous studies, the mean (1963-1993) pattern of the diurnal cycle of summer U.S. precipitation is characterized by late afternoon maxima over the Southeast and the Rocky Mountains and midn...
1. INTRODUCTION Parallel computing promises signiicant improvements in both the raw speed and cost performance of mesoscale atmospheric models. On distributed-memory massively parallel computers available today, the performance of a mesoscale model will exceed that of conventional supercom-puters; on the teraaops machines expected within the next ve years, performance will increase by several o...
By combining elements of two Y-autosome translocations with displaced autosomal breakpoints, it is possible to produce zygotes heterozygous for a deficiency for the region between the breakpoints, and also, as a complementary product, zygotes carrying a duplication for precisely the same region. A set of Y-autosome translocations with appropriately positioned breakpoints, therefore, can in prin...
who were born or aged under five during the late 1840s. But this book is not satisfied with just examining food and famine, for it goes on to study the issue of nutrition, rightly observing that the nutritional value of diets is a major determinant of health. Here again much attention is devoted to the potato. This time Clarkson and Crawford explore the controversial issue of the relationship b...
پیش بینی پدیده های مخرب از مهم ترین وظایف مراکز پیش بینی وضع هوا می باشد که می توان بر اساس آن امنیت پرواز را تامین نمود. در این پژوهش،جهت پیش آگاهی از توفان های تندری مخاطره آمیز، ده مورد توفان رخ داده در تهران طی سال های 2013- 2006 با استفاده از مدل ARW-WRF بررسی شدند. جهت تعیین میزان ناپایداری در محیط شاخص هایی ...
The main aim of this paper is to simulate monsoon heavy rainfall episodes that caused floods across some parts of Andhra Pradesh (AP) state, India during 29 September through 2 October, 2009. A heavy rainfall quantity of 21 cm was observed near Amaravathi station (16.15 ̊N; 80.5 ̊E) in Guntur district due to a meso-α low pressure system extended from the Bay of Bengal and widespread rainfall epis...
Making use of deficiencies, inversions and translocations, we have genetically dissected the region 95E to 96F of Drosophila melanogaster. We localized cytologically the loci abnormal spindle (asp: 385.2: 96A20-25;96B1-10) and M(3)96C2 (96C1;96C5). We have also found several new phenotypes associated with lesions in the 95E to 97B region: (1) Minute(3)96A (M(3)96A) is a haplo-insufficient pheno...
We have identified and sequenced the portion of the white locus affected by an idiosyncratic set of white mutant alleles (the wJP alleles). The affected white locus portion (w‘p region) extends from ca. 590 base pairs (bp) to ca. 1270 bp 5’ to the apparent start site for the major white transcription unit. Based on the properties of these mutant alleles, we infer the existence of two distinct c...
orography plays a substantial role in the formation and evolution of many atmospheric phenomena. observations indicate that two mountain ranges to the southwest of the red sea and west of iran (zagross mountain range) play a crucial role in the formation, evolution and activities of synoptic weather systems over iran. observations also, indicate that there are considerable differences between t...
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