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Artificial satellites in remote sensing. --- Water levels. --- Water levels --- Measurement. --- Level, Water --- Levels, Water --- Water --- Water level --- Hydraulic measurements --- Remote sensing --- Level --- Levels

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Water supply. Water treatment. Water pollution --- European Union --- Water-supply --- Water quality --- Water --- Eau --- Pollution --- Approvisionnement --- Qualité --- Water quality management --- Water levels --- Hydrology --- Water quality control --- Management --- Sewage disposal --- Water conservation --- Level, Water --- Levels, Water --- Water level --- Hydraulic measurements --- Level --- Levels --- Recherche scientifique et technique

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Water levels --- Groundwater --- Measurement --- -Water levels --- -Level, Water --- Levels, Water --- Water --- Water level --- Hydraulic measurements --- Ground water --- Subterranean water --- Underground water --- Water, Underground --- Hydrogeology --- Level --- Levels --- Special issues --- -Measurement --- -Ground water --- Level, Water --- Water levels - United States --- Groundwater - United States - Measurement

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Since the 1950s, the International Joint Commission (IJC) of Canada and the United States has issued water regulation and management plans for Lake Ontario and the St. Lawrence River. Changes in recreational, environmental, navigational and other uses of the water system have prompted the IJC to consider replacing the current water regulation plan in operation for more than 40 years. IJC's goals for a replacement plan include sound scientific foundations, public participation, transparency in plan development and evaluation, and inclusion of environmental considerations. To help develop and select the new plan, the IJC supported a 5-year, $20 million Lake Ontario-St. Lawrence River Study (LOSLR Study). The LOSLR Study uses models to compile and integrate data gathered from a series of commissioned studies of wetlands, species at risk, recreational boating, fisheries, coastal erosion and flooding, commercial navigation, hydropower, industrial, municipal and domestic water intakes, public information and education, and hydrologic modeling. This report reviews a portion of the study that focused on wetlands and species at risk and three of the models that were used. The report finds that the overall breadth of the LOSLR study is impressive, and commends the scale and inclusiveness of the studies and models. In terms of informing decision making, however, the reviewed studies and models show deficiencies when evaluated against ten evaluation criteria, including treatment of uncertainty, quality control/quality assurance, thorough documentation, and empirical foundations. Among the report's recommendations is a need for more thorough documentation of study methods and findings, stronger and more consistent quality control, and more attention to how uncertainty should be addressed to better inform decision making. This NRC study was conducted in collaboration with the Royal Society of Canada.

Water levels --- Water-supply --- Availability, Water --- Water availability --- Water resources --- Natural resources --- Public utilities --- Water resources development --- Water utilities --- Level, Water --- Levels, Water --- Water --- Water level --- Hydraulic measurements --- Level --- Levels --- Lake Ontario-St. Lawrence River Study. --- Lake Ontario-Saint Lawrence River Study --- International Joint Commission. --- International Lake Ontario-St. Lawrence River Study --- LOSLR --- Ontario, Lake (N.Y. and Ont.) --- Saint Lawrence River --- St. Lawrence River --- Lake Ontario (N.Y. and Ont.) --- Great Lakes (North America) --- Regulation.

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There are many shallow lakes in the world. Many of them play an important socio-economic role as contributors to the drinking water supply, in flood attenuation, fisheries and recreation activities. Because of the current anthropogenic changes in the environment, such lakes rapidly respond to eutrophication and swamping. It is often hard to address these issues because many changes in the ecosystems of shallow lakes are associated with little studied physical processes. This interaction between the aquatic biota and the physical and chemical environment increases the complexity of shallow lake ecosystems. Lake Taihu, located in the delta of Yangtze River, is a typical large, shallow eutrophic lake with area of 2338 km2 and maximum depth of less than 3m . This book provides basic data on various aspects of this lake and summarizes research work on the interaction between its ecology and physical limnology. It will be a reference for teachers and students of freshwater ecology and biology, the aquatic environment in general, and, most strikingly, for all those interested in physical limnology.

Lake ecology --- Water levels --- Eutrophication --- Plants --- Freshwater animals --- Effect of water levels on --- Fresh-water fauna --- Freshwater fauna --- Aquatic animals --- Freshwater organisms --- Flora --- Plant kingdom --- Plantae --- Vascular plants --- Vegetable kingdom --- Vegetation --- Wildlife --- Organisms --- Botany --- Limnology --- Lake restoration --- Level, Water --- Levels, Water --- Water --- Water level --- Hydraulic measurements --- Lakes --- Freshwater ecology --- Reservoir ecology --- Level --- Levels --- Ecology --- Ecology. --- Hydraulic engineering. --- Life sciences. --- Waste disposal. --- Aquatic biology. --- Hydrogeology. --- Life Sciences, general. --- Geoecology/Natural Processes. --- Waste Management/Waste Technology. --- Freshwater & Marine Ecology. --- Hydrobiology --- Water biology --- Aquatic sciences --- Biology --- Biosciences --- Sciences, Life --- Science --- Engineering, Hydraulic --- Engineering --- Fluid mechanics --- Hydraulics --- Shore protection --- Balance of nature --- Bionomics --- Ecological processes --- Ecological science --- Ecological sciences --- Environment --- Environmental biology --- Oecology --- Environmental sciences --- Population biology --- Ecology . --- Geoecology. --- Environmental geology. --- Waste management. --- Aquatic ecology . --- Aquatic biology --- Geoecology --- Environmental protection --- Physical geology --- Geohydrology --- Geology --- Hydrology --- Groundwater --- Lacustrine ecology --- Lentic ecology