Download or read book Future Hydroclimate Variables and Lake Levels for the Great Lakes Using Data from the Coupled Model Intercomparison Project Phase 5 written by and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report summarizes the work done by the National Hydrological Service of Environment and Climate Change Canada as part of the Wetlands working group of the Great Lakes Protection Initiatives for a project designed to assess and enhance the resilience of Great Lakes Coastal Wetlands. A critical component of this study was to identify the amount and rate of climate change to which wetlands are likely to be exposed. A key role of NHS was to project future water levels of the Great Lakes from various simulations of the future climate as input to a wetlands response model. While the focus of this effort was on the response of wetland vegetation to changes in climate, it is recognized that many other interests within the Great Lakes basin will also have an interest in the results"--Executive summary, page 2.
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 PREDICTING THE IMPACTS OF CLIMATE CHANGE ON THE GREAT LAKES WATER LEVELS USING A FULLY COUPLED 3D REGIONAL MODELING SYSTEM written by and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : The Great Lakes of North America are the largest surface freshwater system in the world and many ecosystems, industries, and coastal processes are sensitive to the changes in their water levels. The recent changes in the Great Lakes climate and water levels have particularly highlighted the importance of water level prediction. The water levels of the Great Lakes are primarily governed by the net basin supplies (NBS) of each lake which are the sum of over-lake precipitation and basin runoff minus lake evaporation. Recent studies have utilized Regional Climate Models (RCMs) with a fully coupled one-dimensional (1D) lake model to predict the future NBS, and the Coordinated Great Lakes Regulating and Routing Model (CGLRRM) has been used to predict the future water levels. However, multiple studies have emphasized the need for a three-dimensional (3D) lake model to accurately simulate the Great Lakes water budget. Therefore, in this study, we used the Great Lakes-Atmosphere Regional Model (GLARM) along with the Large Basin Runoff Model (LBRM) and CGLRRM to predict the changes in NBS and water levels by the mid- and late twenty-first century. GLARM is a 3D regional climate modeling system for the Great Lakes region that is fully coupled to a 3D hydrodynamic lake and ice model. This is the first study to use such an advanced model for water level prediction in the Great Lakes. We found that both annual over-lake precipitation and basin runoff are most likely to increase into the future. We also found that annual lake evaporation is most likely to decrease in Lake Superior but increase in all the other lakes. We posit that the decreases in evaporation are due to decreased wind speed over the lakes and decreased difference between saturated and actual specific humidity over the lakes. Our predicted changes in the three components of NBS would lead to mostly increased NBS and water levels in the future. The ensemble average of our predicted water level changes for Lake Superior, Michigan-Huron, and Erie are +0.14 m, +0.37 m, and +0.23 m by the mid-twenty-first century, respectively, and +0.47 m, +1.29 m, and +0.80 m by the late twenty-first century, respectively. However, due to the multiple sources of uncertainties associated with climate modeling and predictions, the water level predictions from this study should not be viewed as exact predictions. These predictions are unique to our model configuration and methodology. Other studies can easily predict different water level changes through the use of different models and methodologies. Therefore, more predictions from advanced modeling systems like GLARM are needed to generate a consensus on future water level changes in the Great Lakes.
Download or read book Great Lakes Hydrometeorologic and Hydraulic Data Needs written by International Great Lakes Technical Information Network Board and published by . This book was released on 1984 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Bulletin of Lake Levels for the Great Lakes written by and published by . This book was released on 1980 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Great Lakes Update written by and published by . This book was released on 1994-05 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book THE GREAT LAKES CLIMATE ANALYSIS USING A TWO WAY COUPLED 3 D GREAT LAKES ATMOSPHERE REGIONAL MODEL WITH DATA ASSIMILATION METHODOLOGY written by and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : The objective of this work is to provide the best estimation of physical state of the Great Lakes using the two-way coupled Great Lakes-Atmosphere Regional Model (GLARM) integrated with Data Assimilation (DA) methodology. The aim of the first part is to understand the lake internal process that determines the relationship between lake surface temperature (LST) and lake thermal variations. A 3-D hydrodynamic model was used to examine the nonlinear processes of water mixing and ice formation that caused changes in lake heat content and further variation of LST. The results show that heat content trends do not necessarily follow (and can even be opposed to) trends in LST. In addition, the lake total lake heat content, thermal properties, length of stratification periods, and lake stability intensity were analyzed using validated GLARM 3-D results from 1983-2016. Furthermore, the lake thermal variations were analyzed using physical stability indices. The results reveal that climate change would not only affect the air-lake energy exchange but can also alter lake internal dynamics. In the second part, a Great Lakes forecast system with both long-term and short-term predictions is presented. A downscaled, robust, and sophisticated two-way coupled GLARM model was used to project the climate change over the Great Lakes region over the periods of 2030 - 2050 and 2080 - 2100. Two Representative Concentration Pathway (RCP) emissions scenarios (RCP4.5, RCP8.5) were included. As a result, the stress in air temperature and precipitation during the period of 2080 - 2100 under the high emission scenario (RCP8.5) will be exacerbated with larger spatial variability compared with the medium emission scenario (RCP4.5). For lake conditions, annual mean LST of Lake Erie shows the largest changes among the five lakes. The decrease in the mean lake ice coverage is projected over all the five lakes, while the largest decrease occurs along the coast. Furthermore, the application of DA using Lake Erie as a case study was evaluated. The results show that DA can effectively improve the model performance with limited observational data. The data assimilative model also improves forecasting accuracy and restrains the forecasting uncertainty to an acceptable level on a timescale of 1-7 days after unleashed from DA.
Download or read book The Coupled Lakes Model for Estimating the Long term Response of the Great Lakes to Time dependent Loadings of Particle associated Contaminants written by John A. Robbins and published by . This book was released on 1985 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book IFYGL the International Field Year for the Great Lakes written by Eugene James Aubert and published by . This book was released on 1981 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Great Lakes Water Levels written by and published by . This book was released on 1860 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Levels of the Great Lakes written by and published by . This book was released on 1965 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status Report on the Water Levels of the Great Lakes written by United States. Congress. House. Committee on Public Works. Subcommittee on Water Resources and published by . This book was released on 1973 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Variations in Great Lakes Levels written by U.S. Lake Survey and published by . This book was released on 1952 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Exploration of Collateral Data Potentially Applicable to Great Lakes Hydrography and Fisheries written by Charles F. Powers and published by . This book was released on 1958 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Great Lakes Levels written by and published by . This book was released on 1991 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Great Lakes Levels Update written by and published by . This book was released on 1987 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Great Lakes Water Level Facts written by and published by . This book was released on 1984 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
