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Great Lakes Climate Change and Lake-Levels

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The area of land including the lake and all areas from which runoff into the lake occurs. This can refer to the basin of the entire Great Lakes system or the basin of any one of the individual lakes.
The Huron-Erie corridor is the series of rivers and Lake St. Clair that connect Lake Huron to Lake Erie. Water flows from Lake Huron down the St. Clair river into Lake St. Clair and flows out into...
Any form of water vapor that condenses in the atmosphere and falls to the ground. This includes rain, snow, sleet, hail, etc.
(In progress)
The Chicago River is a major source of diversion from Lake Michigan.
History
Before the 20th century, the Chicago River flowed into Lake Michigan.  Flow was reversed by the city in 1900...
A buildup of ice at the outflow of a river that prevents flow of water.  These jams can cause flooding upstream.
Runoff in the Great Lakes basin consists of inflow to any of the Great Lakes from tributaries as well as any other water that flows over the land into the lakes.
Runoff is affected by meteorological...
Constructed between 1913-1919 near the twin cities of Sault Saint Marie and Ontario by three hydropower plants and a 16 gate control structure.  Its purpose is to control Lake Superior outflow,...
The quantity of water flowing into a lake through surface rivers or streams, measured in time units at a given point
Scouring is an erosion process that occurs due to the movement of water. As water flows forcefully it can remove sediment and rock, creating a channel or pool. Scouring is also often accelerated due...
Water withdrawn from the basin that is not returned due to evaporation or use in a process.
Evapotranspiration is defined as the combination of evaporation and transpiration. Evapotranspiration from the land portion of the basin is a contributing factor for runoff into the lakes. Assuming...
The watershed a withdrawal originates from.
The rate at which a connecting channel carries water.
A diversion into Lake Superior from the Albany River system in Northern Ontario. One of only two major diversions into the entire Great Lake basin. When combined with the Ogoki diversion, the two...
The St. Lawrence River, one of the longest rivers on the North American continent, is the outflow for the entire Great Lakes system. 
The transfer of water from one basin to another.
The Niagara river is the river that connects Lake Erie to Lake Ontario. The river contains Niagara falls which is a popular tourist destination which also makes shipping impossible leading to the...
The regulated release of water from Lake Superior is made through the various structures located on the St. Mary’s River. The allocation of flow to these facilities is determined monthly, based on...
The act of removing sediment and debris from the bottom of a body of water.  This is often done to deepen passages for ships or for other environmental reasons.
A diversion into Lake Superior from the Albany River system in Northern Ontario. One of only two major diversions into the entire Great Lake basin. When combined with the Long Lac diversion, the two...
The Straights of Mackinac are an approximately 10km long by 8km wide span of waterway connecting Lake Michigan and Lake Huron.  Water generally flows eastward from Lake Michigan to Lake Huron, but...
Vaporization from the surface of a liquid.
Established by the International Joint Commission.  Among other objectives, the commission laid out the objectives for and limits to Lake Superior’s outflow.  Since 1978, the commission supplemented...
The Straits of Mackinaw is the connecting waterway between Lakes Michigan and Huron, technically making Lakes Michigan and Huron a single lake hydrologically. The surface and sub-surface currents in...
Evaporation directly from a lake surface has a direct effect on water levels of the lakes. If nothing else changes, and evaporation increases, the levels of the lakes will decrease. If evaporation...
The quantity of water flowing out of a lake through surface rivers or streams, measured in time units at a given point
The process of water moving through a plant and evaporating into the atmosphere.
A combination of evaporation and transpiration.
Over-lake precipitation refers to precipitation that falls directly over the surface of the lakes. This has a direct effect on the levels of the lakes. If more precipitation falls, assuming no other...
The Welland canal is a ship canal cutting through the Niagara peninsula to connect Lakes Erie and Ontario allowing shipping traffic to traverse the Niagara escarpment. The current canal was completed...
The enlarging of large water basins due to movement of mantle material to fill previously glaciated areas.
Over-land precipitation is one of the factors contributing to runoff into the lakes. The amount of precipitation that falls can change the amount of runoff as well as the composition of the water...
The removal of water from surface water or groundwater.