658 research outputs found

    A cloud, precipitation and electrification modeling effort for COHMEX

    Get PDF
    In mid-1987, the Modeling Group of the Institute of Atmospheric Sciences (IAS) began to simulate and analyze cloud runs that were made during the Cooperative Huntsville Meteorological Experiment (COHMEX) Project and later. The cloud model was run nearly every day during the summer 1986 COHMEX Project. The Modeling Group was then funded to analyze the results, make further modeling tests, and help explain the precipitation processes in the Southeastern United States. The main science objectives of COHMEX were: (1) to observe the prestorm environment and understand the physical mechanisms leading to the formation of small convective systems and processes controlling the production of precipitation; (2) to describe the structure of small convective systems producing precipitation including the large and small scale events in the environment surrounding the developing and mature convective system; (3) to understand the interrelationships between electrical activity within the convective system and the process of precipitation; and (4) to develop and test numerical models describing the boundary layer, tropospheric, and cloud scale thermodynamics and dynamics associated with small convective systems. The latter three of these objectives were addressed by the modeling activities of the IAS. A series of cloud modes were used to simulate the clouds that formed during the operational project. The primary models used to date on the project were a two dimensional bulk water model, a two dimensional electrical model, and to a lesser extent, a two dimensional detailed microphysical cloud model. All of the models are based on fully interacting microphysics, dynamics, thermodynamics, and electrical equations. Only the 20 July 1986 case was analyzed in detail, although all of the cases run during the summer were analyzed as to how well they did in predicting the characteristics of the convection for that day

    Cloud scale influences on mesoscale precipitation patterns

    Get PDF
    A two dimensional time dependent finite difference grid cloud model is discussed. The model simulates atmospheric motions, potential temperature, water vapor, cloud liquid, cloud ice, rain and small hail. Lateral boundary conditions are open allowing flow in and out of the model domain. Various amounts of convergence were simulated to test the effects on cloud initiation and development. Soundings were run and results discussed

    The development of a program analysis environment for Ada

    Get PDF
    A unit level, Ada software module testing system, called Query Utility Environment for Software Testing of Ada (QUEST/Ada), is described. The project calls for the design and development of a prototype system. QUEST/Ada design began with a definition of the overall system structure and a description of component dependencies. The project team was divided into three groups to resolve the preliminary designs of the parser/scanner: the test data generator, and the test coverage analyzer. The Phase 1 report is a working document from which the system documentation will evolve. It provides history, a guide to report sections, a literature review, the definition of the system structure and high level interfaces, descriptions of the prototype scope, the three major components, and the plan for the remainder of the project. The appendices include specifications, statistics, two papers derived from the current research, a preliminary users' manual, and the proposal and work plan for Phase 2

    Virginia\u27s Drear Aridities: Its Rule of Perpetuities

    Get PDF
    Whereas most Virginia lawyers know about the rule against perpetuities, many of the same lawyers do not know what it is all about. Perpetuities is a dry and dismal subject to an active practitioner, and the state of abject bewilderment with which he was indoctrinated about the rule against perpetuities while in law school lingers on to haunt his memory. for the balance of his professional career. It is not until an actual client appears with a perpetuities problem that the same practitioner is forced to face the stark realities of the rule. It is only then that the complexities of the rule that perplexes stand out in all their infinite glory. With this horrible possibility always just over the horizon, it is time that somebody talked about Virginia\u27s own rule against perpetuities. This commentary purports to be just that- a dissertation about Virginia\u27s rule. What should be done about it, if anything, will be reserved for future consideration

    Marketable Title on a Place in Space

    Get PDF
    Space, it\u27s wonderful! This modification of an oft-repeated cliche is intended in no way to dimnish the significance of mankind\u27s yearning for peace since the beginning of time. It is, however, designed to focus attention on the conquest of space, mankind\u27s twentieth-century contribution to what has come to be known as progress . Contemporary writers characterize the era in which we live as the space age and there is every reason to believe that historians of the future will similarly record the twentieth century as -theepoch of man\u27s mastery not only of transportation in space, but also of his dominion over space

    Joint Control by the Surety: a Virginia Statute and Its Common Law Ancestry

    Get PDF
    It happened in Texas, but it could just as well have been Virginia. At the June 1934 term of the County Court of Anderson County, Texas, there was offered for probate the holographic will of Herman Oberweiss. The testator and his several brothers had settled in Texas after emigrating from their native Germany, and without benefit of much education Herman Oberweiss had been able to accumulate considerable wealth during his lifetime

    Perpetuities, Privity and Professional Liability

    Get PDF
    As the number of malpractice cases against members of all professions continues to increase, it seems appropriate to review several new developments which may be of considerable importance to the practicing lawyer with respect to his professional liability. The time has come to approach this delicate subject with some plain language about property law and the portentous responsibility of the legal profession in the context of the rule against perpetuities
    corecore