Download or read book Great Lakes Simulation Studies Volume I NETSIM A General Network Simulator written by PENNSYLVANIA TRANSPORTATION AND TRAFFIC SAFETY CENTER UNIVERSITY PARK. and published by . This book was released on 1972 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: NETSIM is a computer simulation model written in the SIMSCRIPT programming language whose purpose is to provide a general simulation capability for any network composed of links and nodes. The current use of NETSIM in multiple channel deep draft navigation systems has earned it the qualification NETSIM/SHIP. The model was developed for use by the U.S. Army Corps of Engineers with immediate applications on the Great Lakes systems. Ships are handled in NETSIM/SHIP on a chronological event basis as they engage in their journey from origin to destination. Simulation of ship processing at system facilities (locks, reaches, etc.) is carried out through the use of distinct link modules, and channel choice decisions where alternative routes exist are handled by a decision-making mechanism based on the calculation of expected transit times for each route. Required inputs consist of fleet data, run and system size parameters, and a description of the network configuration and system entities. Output produced by the model consists of data for the formulation of the channel choice mechanism in the first form, and an event by event description of the actual simulation in the second form. The latter form provides a permanent data base from which exactly tailored statistical reports can be generated. Although the model is complete as it currently exists, it is being further equipped with extensive capabilities for general, system wide simulation of the Great Lakes. Even without these capabilities, however, the current version of NETSIM/SHIP can be used as a planning tool to aid in the investigation of sub-system operating characteristics. (Author).
Download or read book Great Lakes Saint Lawrence Seaway Simulation Studies Volume 3 Summary Report written by Joseph L. Carroll and published by . This book was released on 1973 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: A computer simulation model developed to study the operating characteristics of the Great Lakes and St. Lawrence Seaway navigation system is described. The model is comprised of a simulation program (NETSIM II), a report generation program (PROSIM), both written in SIMSCRIPT, and four FORTRAN support programs used to structure selected input data in the required format for simulation. The model is addressed to the task of analyzing the performance of a waterway system under various structural and nonstructural improvements in terms of delays, congestion and utilization. Major features of the model include the ability to simulate bi-directional traffic flows through lakes, channels, locks and ports and the ability to balance the supply and demand of transportable commodities and transport equipment units in the system. (Author).
Download or read book Great Lakes Monthly Hydrologic Data written by Frank H. Quinn and published by . This book was released on 1983 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accurate values of monthly hydrologic data are required for simulation, forecasting, and water resource studies of the Great Lakes and their basins. This report summarizes the monthly hydrologic data currently used by the Great Lakes Environmental Research Laboratory in their hydrologic and water resources studies of the Great Lakes. The data consist of precipitation, runoff, evaporation, connecting channel flows, diversions, beginning-of-month lake levels, and rates of change in storage.
Download or read book Great Lakes Saint Lawrence Seaway Simulation Studies Volume 4 NETSIM II and PROSIM A Waterway Simulation Package written by Joseph L. Carroll and published by . This book was released on 1973 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report present a detailed description of a computer simulation package designed for the Great Lakes-St. Lawrence Seaway navigation system. The discussion is divided into three parts corresponding to the major components of the simulation package. Part I covers NETSIM II, the simulation program itself. Part II covers PROSIM, the statistical report generator for NETSIM II. Each of these programs is written in SIMSCRIPT and each is composed largely of subroutines which carry out processing for the various kinds of navigation facilities. This modular structure greatly simplifies the task of program modification. Part III describes four FORTRAN programs which have been provided to facilitate data preparation for NETSIM II. Detailed user manuals are included for all programs in the package. The model is addressed to the task of analyzing the performance of a waterway system under various structural and nonstructural improvements. The analysis is in terms of delays, congestion and utilization. The major feature of the model is its ability to simulate traffic flows which result from a given pattern of transport demand (commodity movements). (Author).
Download or read book Technical Plan for the Great Lakes Environmental Research Laboratory written by Great Lakes Environmental Research Laboratory and published by . This book was released on 1986 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Summary of Preliminary Feasibility Studies for Great Lakes Connecting Channels and Harbors Study written by and published by . This book was released on 1982 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The study is to determine the feasibility of further commercial navigation improvements to the connecting channels, locks, and harbors on the upper four Great Lakes, and the extent of any federal interest. Preliminary feasibility studies have been completed. In response to the commercial navigation proglems, needs, and opportunities, several alternative structural plans were evaluated... A non-structural plan... and a No action plan were also evaluated."--Syllabus.
Download or read book Great Lakes Simulation Studies Volume 2 Lake Erie Lake Ontario Navigation A Simulation Study of Alternative Subsystems written by Joseph L. Carroll and published by . This book was released on 1972 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the findings and conclusions of a computer simulation study of the Welland Canal and proposed alternatives to the Welland. The objective of this study was to establish the limits of service for alternative structural and nonstructural improvements in terms of delay and transit time. Waterborne transport demand through the year 2030 was considered in the analysis, demand being represented by two factors, traffic density and fleet composition. The results of the study were portrayed as a series of transit time response curves for each configuration, plotted as a function of the transport demand. (Author).
Download or read book Great Lakes Simulation Studies written by and published by . This book was released on 1972 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulation of Atmospheric and Lake Conditions in the Laurentian Great Lakes Region Using the Coupled Hydrosphere Atmosphere Research Model CHARM written by Brent Melvin Lofgren and published by . This book was released on 2014 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Greenhouse gas-induced climate change will have notable effects on the Great Lakes region, in the atmosphere, land surfaces, and lakes themselves. Simulations of these effects were carried out using the Coupled Hydrosphere-Atmosphere Research Model (CHARM), driven by output from the Canadian General Circulation Model version 3 (CRCM3) for past and future time periods. This results in increased downward longwave radiation and near-surface air temperature. The air temperature increases during summer have strong spatial minima directly over the lakes that are limited to the lowest model layer and seem to be associated with frequent fog depicted by CHARM. Precipitation is also generally increased, with the most spatially coherent, and among the strongest, increases occurring in the near-shore lake effect zones during winter. Evapotranspiration is generally increased, although only weakly over land, but very strongly over the lakes during winter. Water temperatures are increased and the summer stratification pattern (warmer water overlying colder) is established earlier in the year. Ice cover is diminished and limited to shallow parts of the lakes. Several bugs and shortcomings in CHARM are identified for correction in future development and use.
Download or read book Technical Plan for the Great Lakes Environmental Research Laboratory written by Great Lakes Environmental Research Laboratory and published by . This book was released on 1982 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potential Climate Change Effects on Great Lakes Hydrodynamics and Water Quality written by David C. L. Lam and published by ASCE Publications. This book was released on 1999-01-01 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides a state-of-the-art review of the climate change effects on lake hydrodynamics and water quality. Most of the engineering cases in this book deal with the ability of existing infrastructure to cope with extreme weather conditions. The case studies are intended to illustrate the advancement in modeling research on lake hydrodynamics, thermal stratification, pollutant transport, and water quality by highlighting the climate change aspects in the application of these techniques. Topics include climate and lake responses, lake thermodynamics, large-scale circulation, wind-waves on large lakes, great lakes ice cover, and water quality.
Download or read book Annual Report Great Lakes Environmental Research Laboratory written by Great Lakes Environmental Research Laboratory and published by . This book was released on 1976 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of Workshop on Priority Great Lakes Environmental Research Initiatives written by and published by . This book was released on 1975 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Plan for the Great Lakes Environmental Research Laboratory written by Great Lakes Environmental Research Laboratory and published by . This book was released on 1981 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Great Lakes St Lawrence Seaway Simulation Studies written by Joseph Louis Carroll and published by . This book was released on 1973 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Great Lakes Precipitation by Months 1900 80 written by Frank H. Quinn and published by . This book was released on 1983 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accurate values of monthly precipitation are required for simulation, forecasting, and water resource studies of the Great Lakes and their basins. There are often significant errors in the present method of computing these values because of technique problems accentuated when data from preselected stations are missing. Therefore, a monthly precipitation climatology was derived by a modified Thiessen approach using a grid-square technique. The resulting data set, which represents a major improvement over that presently in use, is presented here.
Download or read book Detailed Technical Plan for the Great Lakes Environmental Research Laboratory written by Great Lakes Environmental Research Laboratory and published by . This book was released on 1980 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
