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A tide gauge The tide gauge in Kronstadt, Russia [1] A tide gauge is a device for measuring the change in sea level relative to a vertical datum. [2] [3] It is also known as a mareograph, [4] marigraph, [5] and sea-level recorder. [6] When applied to freshwater continental water bodies, the instrument may also be called a limnimeter. [7] [8]
St. Marks River State Park which opened in 2007, is the 161st Florida State Park, located about 10 miles east of Tallahassee, south of U.S. Highway 27. The park's 2,589 acres occupy parts of Jefferson and Leon counties and act as a buffer from development for the St. Marks River .
The first tide predicting machine (TPM) was built in 1872 by the Légé Engineering Company. [11] A model of it was exhibited at the British Association meeting in 1873 [12] (for computing 8 tidal components), followed in 1875-76 by a machine on a slightly larger scale (for computing 10 tidal components), was designed by Sir William Thomson (who later became Lord Kelvin). [13]
Head of tide, tidal limit [2] or tidehead [3] is the farthest point upstream where a river is affected by tidal fluctuations, [4] or where the fluctuations are less than a certain amount. [5] The river section influenced by tides and marine forces but without salinity is a tidal river , while downstream areas are brackish and termed estuaries .
San Marcos de Apalache Historic State Park interprets the site of the old fort. Today's St. Marks evidently has its roots in American commercial activity that took hold beneath the walls of the fort upon acquisition of Spanish Florida by the U.S. in 1821—before the settlement moved slightly up the St. Marks River to the
St. Mary's River State Park is a public recreation area located in St. Mary's County, Maryland. The state park consists of two sites: one encompasses 250-acre (100 ha) St. Mary's Lake; the second covers 2,200 acres (890 ha) and is largely undeveloped. The park is managed by the Maryland Department of Natural Resources. [2]
The Lewis and Clark Expedition began at the confluence in 1804, and the explorers returned there at the end of their journey. [4] Following the purchase of the site through the aid of a grant from the Danforth Foundation, the Western Rivers Conservancy conveyed the land to the Missouri Department of Natural Resources and the Metropolitan Parks and Recreation District in 2001. [6]
Jacques Cartier State Park is a 461-acre (1.87 km 2) state park [2] located in the Town of Morristown in St. Lawrence County, New York. The park is located on the south bank of the St. Lawrence River. The park offers a beach, picnic tables, playground, hiking, fishing, a boat launch and docks. The park also features a campground with both tent ...