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Lake Superior's water level was at a new record low in September 2007, slightly less than the previous record low in 1926. [23] Water levels recovered within a few days. [24] Historic high water The lake's water level fluctuates from month to month, with the highest lake levels in October and November. The normal high-water mark is 1.17 feet (0 ...
Fish species (IUCN, 2016-2) 15,219 extant species have been evaluated; 12,028 of those are fully assessed; 9679 are not threatened at present; 2343 to 5534 are threatened; 71 to 158 are extinct or extinct in the wild: 65 extinct (EX) species; 6 extinct in the wild (EW) 87 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR(PEW)]
Tide table. Tide tables, sometimes called tide charts, are used for tidal prediction and show the daily times and levels of high and low tides, usually for a particular location. [1] Tide heights at intermediate times (between high and low water) can be approximated by using the rule of twelfths or more accurately calculated by using a ...
Website. google.com /sheets. Google Sheets is a spreadsheet application and part of the free, web-based Google Docs Editors suite offered by Google. Google Sheets is available as a web application; a mobile app for: Android, iOS, and as a desktop application on Google's ChromeOS. The app is compatible with Microsoft Excel file formats. [3]
Lake Erie (/ ˈɪəri / EER-ee; French: Lac Érié) is the fourth-largest lake by surface area of the five Great Lakes in North America and the eleventh-largest globally. [6][10] It is the southernmost, shallowest, and smallest by volume of the Great Lakes [11][12] and also has the shortest average water residence time.
United States Lake Survey. The United States Lake Survey (USLS) was a hydrographic survey for the Great Lakes, New York Barge Canal, Lake Champlain and the Boundary Waters of the Canada–United States border between Minnesota and Ontario. The Survey's activities began on 31 March 1841, with the goal of surveying the Great Lakes.
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